RM36D0EC _57 Power Source / Network _083091 NETWORKING _0694854 CAN COMMUNICATION SYSTEM(for SFTM Made Gasoline Model) J

NETWORKING  CAN COMMUNICATION SYSTEM(for SFTM Made Gasoline Model)  Check Bus 5 Line  


DESCRIPTION

Symptom Trouble Area

*1: w/ Smart Entry and Start System

*2: w/ Power Back Door System

There are ECUs or sensors that display a communication stop on the bus diagnostic screen. Or, there are ECUs or sensors that store a communication stop history on the "Detail" screen.
·

CAN bus lines or connector

·

Central gateway ECU (network gateway ECU)

·

Main body ECU (multiplex network body ECU)

·

Certification ECU (smart key ECU assembly)*1

·

Air conditioning amplifier assembly

·

Multiplex network door ECU*2

·

No. 1 CAN junction connector

·

No. 7 CAN junction connector



WIRING DIAGRAM

C531562E01
0.083,1.198 1.74,1.563 1.656,0.365 10 false Main Body ECU (Multiplex Network Body ECU) 0.073,1.042 0.563,1.219 0.49,0.177 10 false G169 0.073,2.729 1.219,3.094 1.146,0.365 10 false Multiplex Network Door ECU*1 0.104,4.354 2.063,4.729 1.958,0.375 10 false Central Gateway ECU (Network Gateway ECU) 0.104,4.188 0.656,4.375 0.552,0.188 10 false G174 0.063,2.573 0.615,2.76 0.552,0.188 10 false R30 2.063,2.667 3.302,3.052 1.24,0.385 10 false No. 7 CAN Junction Connector 2.063,2.469 2.615,2.656 0.552,0.188 10 false N52 5.438,0.927 5.99,1.115 0.552,0.188 10 false G46 5.438,1.104 6.99,1.479 1.552,0.375 10 false Air Conditioning Amplifier Assembly 5.49,4.229 7.042,4.604 1.552,0.375 10 false Certification ECU (Smart Key ECU Assembly)*2 5.448,4.052 6,4.24 0.552,0.188 10 false G170 3.833,4.365 5.073,4.75 1.24,0.385 10 false No. 1 CAN Junction Connector 3.813,4.167 4.365,4.354 0.552,0.188 10 false G96 0.865,5.281 2.958,5.5 2.094,0.219 10 false *1: w/ Power Back Door System 3.333,5.26 5.854,5.51 2.521,0.25 10 false *2: w/ Smat Entry and Start System 5.917,0.458 6.469,0.646 0.552,0.188 10 false CANH 5.917,0.76 6.469,0.948 0.552,0.188 10 false CANL 5.917,3.885 6.469,4.073 0.552,0.188 10 false CANL 5.906,3.583 6.458,3.771 0.552,0.188 10 false CANH 0.656,3.479 1.208,3.667 0.552,0.188 10 false CA5H 0.656,3.99 1.208,4.177 0.552,0.188 10 false CA5L 0.688,0.854 1.24,1.042 0.552,0.188 10 false CANL 0.667,0.344 1.219,0.531 0.552,0.188 10 false CANH 0.656,2.01 1.115,2.188 0.458,0.177 10 false CANP 0.646,2.302 1.104,2.479 0.458,0.177 10 false CANN 5.708,0.333 5.885,0.521 0.177,0.188 10 false 2 5.698,0.635 5.875,0.823 0.177,0.188 10 false 1 4.76,0.313 4.938,0.5 0.177,0.188 10 false 5 4.729,0.667 4.958,0.854 0.229,0.188 10 false 16 4.052,0.344 4.229,0.531 0.177,0.188 10 false 1 3.99,0.656 4.219,0.844 0.229,0.188 10 false 12 2.438,0.333 2.615,0.521 0.177,0.188 10 false 2 2.438,0.656 2.667,0.844 0.229,0.188 10 false 8 1.167,0.323 1.344,0.51 0.177,0.188 10 false 2 1.156,0.656 1.333,0.844 0.177,0.188 10 false 1 1.156,1.885 1.385,2.083 0.229,0.198 10 false 10 1.156,2.219 1.385,2.417 0.229,0.198 10 false 20 1.167,3.448 1.396,3.646 0.229,0.198 10 false 7 1.156,3.802 1.385,4 0.229,0.198 10 false 8 5.698,3.469 5.875,3.656 0.177,0.188 10 false 1 5.698,3.781 5.875,3.969 0.177,0.188 10 false 2 4.76,3.469 4.938,3.656 0.177,0.188 10 false 2 4.74,3.781 4.979,3.99 0.24,0.208 10 false 13 4.031,3.438 4.208,3.625 0.177,0.188 10 false 3 4,3.781 4.24,3.99 0.24,0.208 10 false 14 3.135,0.313 3.313,0.5 0.177,0.188 10 false 1 3.135,0.646 3.313,0.833 0.177,0.188 10 false 7 2.427,1.875 2.656,2.063 0.229,0.188 10 false 3 2.427,2.219 2.656,2.406 0.229,0.188 10 false 9

CAUTION / NOTICE / HINT

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


NOTICE:
·

Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for SFTM Made Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 10 minutes or more before measuring the resistance.

·

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY

·

When disconnecting and reconnecting the battery.

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>AUTOMATIC LEARNING CHART


·

Some parts must be initialized and set when replacing or removing and installing parts.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>WORK PROCEDURE

·

After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

DTC check procedure: Turn the ignition switch ton ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

·

After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for SFTM Made Gasoline Model)>DIAGNOSIS SYSTEM

·

Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

·

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.



HINT:
·

Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.

·

When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.



PROCEDURE

1.CHECK FOR OPEN IN CAN BUS WIRE
NOTICE:

Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 10 minutes or more before measuring the resistance.


HINT:

Operating the ignition switch, any other switches or door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.


a.

Disconnect the cable from the negative (-) battery terminal.


b.
C502817C10
1.51,0.073 1.927,0.323 0.417,0.25 1.031,1.979 1.198,1.979 1.198,1.979 2.146,0.781 true 2.677,1.927 2.5,1.927 2.5,1.927 2.26,0.75 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 1.552,0.104 2.01,0.302 0.458,0.198 10 false G174 0.573,1.875 0.969,2.063 0.396,0.188 10 false CA5L 2.813,1.844 3.25,2.073 0.438,0.229 10 false CA5H
*a Component with harness connected
(Central Gateway ECU [Network Gateway ECU])


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G174-7 (CA5H) - G174-8 (CA5L) Cable disconnected from negative (-) battery terminal Below 70 Ω



Result:
Proceed to
OK
NG



OK

2.CHECK FOR SHORT IN CAN BUS WIRES

NG

47.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 CAN JUNCTION CONNECTOR)
2.CHECK FOR SHORT IN CAN BUS WIRES
a.
C502817C10
1.51,0.073 1.927,0.323 0.417,0.25 1.031,1.979 1.198,1.979 1.198,1.979 2.146,0.781 true 2.677,1.927 2.5,1.927 2.5,1.927 2.26,0.75 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 1.552,0.104 2.01,0.302 0.458,0.198 10 false G174 0.573,1.875 0.969,2.063 0.396,0.188 10 false CA5L 2.813,1.844 3.25,2.073 0.438,0.229 10 false CA5H
*a Component with harness connected
(Central Gateway ECU [Network Gateway ECU])


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G174-7 (CA5H) - G174-8 (CA5L) Cable disconnected from negative (-) battery terminal 54 Ω or higher



Result:
Proceed to
OK
NG



OK

3.CHECK FOR SHORT TO B+ IN CAN BUS WIRE

NG

33.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 CAN JUNCTION CONNECTOR)
3.CHECK FOR SHORT TO B+ IN CAN BUS WIRE
a.
C502817C10
1.51,0.073 1.927,0.323 0.417,0.25 1.031,1.979 1.198,1.979 1.198,1.979 2.146,0.781 true 2.677,1.927 2.5,1.927 2.5,1.927 2.26,0.75 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 1.552,0.104 2.01,0.302 0.458,0.198 10 false G174 0.573,1.875 0.969,2.063 0.396,0.188 10 false CA5L 2.813,1.844 3.25,2.073 0.438,0.229 10 false CA5H
*a Component with harness connected
(Central Gateway ECU [Network Gateway ECU])


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G174-7 (CA5H) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
G174-8 (CA5L) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

4.CHECK FOR SHORT TO GND IN CAN BUS WIRE

NG

19.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 CAN JUNCTION CONNECTOR)
4.CHECK FOR SHORT TO GND IN CAN BUS WIRE
a.
C502817C10
1.51,0.073 1.927,0.323 0.417,0.25 1.031,1.979 1.198,1.979 1.198,1.979 2.146,0.781 true 2.677,1.927 2.5,1.927 2.5,1.927 2.26,0.75 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 1.552,0.104 2.01,0.302 0.458,0.198 10 false G174 0.573,1.875 0.969,2.063 0.396,0.188 10 false CA5L 2.813,1.844 3.25,2.073 0.438,0.229 10 false CA5H
*a Component with harness connected
(Central Gateway ECU [Network Gateway ECU])


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G174-7 (CA5H) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
G174-8 (CA5L) - Body ground



Result:
Proceed to
OK
NG



OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

Click herePower Source / Network>NETWORKING>NETWORK GATEWAY ECU>REMOVAL


NG

5.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 CAN JUNCTION CONNECTOR)
5.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 CAN JUNCTION CONNECTOR)
a.

Disconnect the G96 No. 1 CAN junction connector.

C476562C16
1.052,1.24 1.458,1.49 0.406,0.25 2.458,0.594 2.708,0.594 2.708,0.594 2.708,1.375 true 2.469,2.135 2.719,2.135 2.719,2.135 2.719,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 1.896,0.521 2.563,0.76 0.667,0.24 10 false CANH*b 1.938,2.052 2.604,2.292 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to No. 7 CAN Junction Connector



b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G96-1 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
G96-12 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

6.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

NG

10.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
6.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
a.

Measure the resistance according to the value(s) in the table below.

C476562C17
1.052,1.24 1.458,1.49 0.406,0.25 2.792,0.177 3.042,0.177 3.042,0.177 3.042,1.375 true 2.885,2.552 3.052,2.552 3.052,2.552 3.052,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.208,0.115 2.875,0.354 0.667,0.24 10 false CANH*b 2.281,2.469 3,2.667 0.719,0.198 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-3 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
G96-14 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

7.CHECK VEHICLE TYPE

NG

16.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
7.CHECK VEHICLE TYPE
a.

Check the vehicle type.


Result:
Result Proceed to
w/ Smart Entry and Start System A
w/o Smart Entry and Start System B



A

8.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

B

9.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
8.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
a.

Measure the resistance according to the value(s) in the table below.

C476562C18
1.052,1.24 1.458,1.49 0.406,0.25 2.615,0.375 2.865,0.375 2.865,0.375 2.865,1.375 true 2.646,2.365 2.896,2.365 2.896,2.365 2.896,1.698 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.021,0.313 2.688,0.552 0.667,0.24 10 false CANH*b 2.063,2.292 2.729,2.531 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Certification ECU (Smart Key ECU Assembly)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-2 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
G96-13 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

9.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

NG

17.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
9.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
a.

Measure the resistance according to the value(s) in the table below.

C476562C20
1.052,1.24 1.458,1.49 0.406,0.25 3.573,0.542 3.406,0.542 3.406,0.542 3.406,1.375 true 3.583,2.219 3.417,2.219 3.417,2.219 3.417,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 3.635,0.479 4.302,0.719 0.667,0.24 10 false CANH*b 3.646,2.167 4.313,2.406 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Air Conditioning Amplifier Assembly


Standard Resistance:
Tester Connection Condition Specified Condition
G96-5 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
G96-16 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

REPLACE NO. 1 CAN JUNCTION CONNECTOR

NG

18.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
10.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
a.

Disconnect the N52 No. 7 CAN junction connector.

C414853C23
0.365,1.271 0.823,1.521 0.458,0.25 1.833,1.135 2,1.135 2,1.135 2.448,1.333 true 1.865,1.729 2.031,1.729 2.031,1.729 2.417,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.313,1.073 1.865,1.25 0.552,0.177 10 false CANH*b 1.354,1.667 1.906,1.844 0.552,0.177 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to No. 1 CAN Junction Connector



b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
N52-1 (CANH) - Body ground Cable disconnected from negative (-)battery terminal 200 Ω or higher
N52-7 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

11.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)

11.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Measure the resistance according to the value(s) in the table below.

C414853C25
0.365,1.271 0.823,1.521 0.458,0.25 2,0.615 2.167,0.615 2.167,0.615 2.875,1.292 true 1.958,2.125 2.125,2.125 2.125,2.125 2.906,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.354,0.458 1.906,0.635 0.552,0.177 10 false CANH*b 1.396,2.042 2.094,2.292 0.698,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Main Body ECU (Multiplex Network Body ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
N52-2 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
N52-8 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

12.CHECK VEHICLE TYPE

NG

14.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
12.CHECK VEHICLE TYPE
a.

Check the vehicle type.


Result:
Result Proceed to
w/ Power Back Door System A
w/o Power Back Door System B



A

13.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)

B

REPLACE NO. 7 CAN JUNCTION CONNECTOR

13.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
a.

Measure the resistance according to the value(s) in the table below.

C414853C26
0.365,1.271 0.823,1.521 0.458,0.25 2.594,0.427 2.76,0.427 2.76,0.427 3.354,1.323 true 2.75,2.219 2.917,2.219 2.917,2.219 3.333,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.99,0.354 2.844,0.708 0.854,0.354 10 false CANH*b 2.198,2.125 2.885,2.375 0.688,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Multiplex Network Door ECU


Standard Resistance:
Tester Connection Condition Specified Condition
N52-3 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
N52-9 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

REPLACE NO. 7 CAN JUNCTION CONNECTOR

NG

15.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
14.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the G169 main body ECU (multiplex network body ECU) connector.


b.

Measure the resistance according to the value(s) in the table below.

C414853C25
0.365,1.271 0.823,1.521 0.458,0.25 2,0.615 2.167,0.615 2.167,0.615 2.875,1.292 true 1.958,2.125 2.125,2.125 2.125,2.125 2.906,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.354,0.458 1.906,0.635 0.552,0.177 10 false CANH*b 1.396,2.042 2.094,2.292 0.698,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Main Body ECU (Multiplex Network Body ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
N52-2 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
N52-8 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

15.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
a.

Disconnect the R30 multiplex network door ECU connector.


b.

Measure the resistance according to the value(s) in the table below.

C414853C26
0.365,1.271 0.823,1.521 0.458,0.25 2.594,0.427 2.76,0.427 2.76,0.427 3.354,1.323 true 2.75,2.219 2.917,2.219 2.917,2.219 3.333,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.99,0.354 2.844,0.708 0.854,0.354 10 false CANH*b 2.198,2.125 2.885,2.375 0.688,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Multiplex Network Door ECU


Standard Resistance:
Tester Connection Condition Specified Condition
N52-3 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
N52-9 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

REPLACE MULTIPLEX NETWORK DOOR ECU

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR CLOSER ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)

16.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
a.

Disconnect the G174 central gateway ECU (network gateway ECU) connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C17
1.052,1.24 1.458,1.49 0.406,0.25 2.792,0.177 3.042,0.177 3.042,0.177 3.042,1.375 true 2.885,2.552 3.052,2.552 3.052,2.552 3.052,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.208,0.115 2.875,0.354 0.667,0.24 10 false CANH*b 2.281,2.469 3,2.667 0.719,0.198 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-3 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
G96-14 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

Click herePower Source / Network>NETWORKING>NETWORK GATEWAY ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

17.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
a.

Disconnect the G170 certification ECU (smart key ECU assembly) connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C18
1.052,1.24 1.458,1.49 0.406,0.25 2.615,0.375 2.865,0.375 2.865,0.375 2.865,1.375 true 2.646,2.365 2.896,2.365 2.896,2.365 2.896,1.698 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.021,0.313 2.688,0.552 0.667,0.24 10 false CANH*b 2.063,2.292 2.729,2.531 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Certification ECU (Smart Key ECU Assembly)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-2 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
G96-13 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

18.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
a.

Disconnect the G46 air conditioning amplifier assembly connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C20
1.052,1.24 1.458,1.49 0.406,0.25 3.573,0.542 3.406,0.542 3.406,0.542 3.406,1.375 true 3.583,2.219 3.417,2.219 3.417,2.219 3.417,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 3.635,0.479 4.302,0.719 0.667,0.24 10 false CANH*b 3.646,2.167 4.313,2.406 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Air Conditioning Amplifier Assembly


Standard Resistance:
Tester Connection Condition Specified Condition
G96-5 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
G96-16 (CANL) - Body ground



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

19.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 CAN JUNCTION CONNECTOR)
a.

Disconnect the G96 No. 1 CAN junction connector.

C476562C16
1.052,1.24 1.458,1.49 0.406,0.25 2.458,0.594 2.708,0.594 2.708,0.594 2.708,1.375 true 2.469,2.135 2.719,2.135 2.719,2.135 2.719,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 1.896,0.521 2.563,0.76 0.667,0.24 10 false CANH*b 1.938,2.052 2.604,2.292 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to No. 7 CAN Junction Connector



b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G96-1 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
G96-12 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

20.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

NG

24.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
20.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
a.

Measure the resistance according to the value(s) in the table below.

C476562C17
1.052,1.24 1.458,1.49 0.406,0.25 2.792,0.177 3.042,0.177 3.042,0.177 3.042,1.375 true 2.885,2.552 3.052,2.552 3.052,2.552 3.052,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.208,0.115 2.875,0.354 0.667,0.24 10 false CANH*b 2.281,2.469 3,2.667 0.719,0.198 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-3 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
G96-14 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

21.CHECK VEHICLE TYPE

NG

30.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
21.CHECK VEHICLE TYPE
a.

Check the vehicle type.


Result:
Result Proceed to
w/ Smart Entry and Start System A
w/o Smart Entry and Start System B



A

22.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

B

23.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
22.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
a.

Measure the resistance according to the value(s) in the table below.

C476562C18
1.052,1.24 1.458,1.49 0.406,0.25 2.615,0.375 2.865,0.375 2.865,0.375 2.865,1.375 true 2.646,2.365 2.896,2.365 2.896,2.365 2.896,1.698 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.021,0.313 2.688,0.552 0.667,0.24 10 false CANH*b 2.063,2.292 2.729,2.531 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Certification ECU (Smart Key ECU Assembly)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-2 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
G96-13 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

23.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

NG

31.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
23.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
a.

Measure the resistance according to the value(s) in the table below.

C476562C20
1.052,1.24 1.458,1.49 0.406,0.25 3.573,0.542 3.406,0.542 3.406,0.542 3.406,1.375 true 3.583,2.219 3.417,2.219 3.417,2.219 3.417,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 3.635,0.479 4.302,0.719 0.667,0.24 10 false CANH*b 3.646,2.167 4.313,2.406 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Air Conditioning Amplifier Assembly


Standard Resistance:
Tester Connection Condition Specified Condition
G96-5 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
G96-16 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

REPLACE NO. 1 CAN JUNCTION CONNECTOR

NG

32.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
24.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
a.

Disconnect the N52 No. 7 CAN junction connector.

C414853C23
0.365,1.271 0.823,1.521 0.458,0.25 1.833,1.135 2,1.135 2,1.135 2.448,1.333 true 1.865,1.729 2.031,1.729 2.031,1.729 2.417,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.313,1.073 1.865,1.25 0.552,0.177 10 false CANH*b 1.354,1.667 1.906,1.844 0.552,0.177 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to No. 1 CAN Junction Connector



b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
N52-1 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-)battery terminal 6 kΩ or higher
N52-7 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

25.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)

25.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Measure the resistance according to the value(s) in the table below.

C414853C25
0.365,1.271 0.823,1.521 0.458,0.25 2,0.615 2.167,0.615 2.167,0.615 2.875,1.292 true 1.958,2.125 2.125,2.125 2.125,2.125 2.906,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.354,0.458 1.906,0.635 0.552,0.177 10 false CANH*b 1.396,2.042 2.094,2.292 0.698,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Main Body ECU (Multiplex Network Body ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
N52-2 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N52-8 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

26.CHECK VEHICLE TYPE

NG

28.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
26.CHECK VEHICLE TYPE
a.

Check the vehicle type.


Result:
Result Proceed to
w/ Power Back Door System A
w/o Power Back Door System B



A

27.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)

B

REPLACE NO. 7 CAN JUNCTION CONNECTOR

27.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
a.

Measure the resistance according to the value(s) in the table below.

C414853C26
0.365,1.271 0.823,1.521 0.458,0.25 2.594,0.427 2.76,0.427 2.76,0.427 3.354,1.323 true 2.75,2.219 2.917,2.219 2.917,2.219 3.333,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.99,0.354 2.844,0.708 0.854,0.354 10 false CANH*b 2.198,2.125 2.885,2.375 0.688,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Multiplex Network Door ECU


Standard Resistance:
Tester Connection Condition Specified Condition
N52-3 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N52-9 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

REPLACE NO. 7 CAN JUNCTION CONNECTOR

NG

29.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
28.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the G169 main body ECU (multiplex network body ECU) connector.


b.

Measure the resistance according to the value(s) in the table below.

C414853C25
0.365,1.271 0.823,1.521 0.458,0.25 2,0.615 2.167,0.615 2.167,0.615 2.875,1.292 true 1.958,2.125 2.125,2.125 2.125,2.125 2.906,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.354,0.458 1.906,0.635 0.552,0.177 10 false CANH*b 1.396,2.042 2.094,2.292 0.698,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Main Body ECU (Multiplex Network Body ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
N52-2 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N52-8 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

29.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
a.

Disconnect the R30 multiplex network door ECU connector.


b.

Measure the resistance according to the value(s) in the table below.

C414853C26
0.365,1.271 0.823,1.521 0.458,0.25 2.594,0.427 2.76,0.427 2.76,0.427 3.354,1.323 true 2.75,2.219 2.917,2.219 2.917,2.219 3.333,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.99,0.354 2.844,0.708 0.854,0.354 10 false CANH*b 2.198,2.125 2.885,2.375 0.688,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Multiplex Network Door ECU


Standard Resistance:
Tester Connection Condition Specified Condition
N52-3 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N52-9 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

REPLACE MULTIPLEX NETWORK DOOR ECU

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR CLOSER ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)

30.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
a.

Disconnect the G174 central gateway ECU (network gateway ECU) connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C17
1.052,1.24 1.458,1.49 0.406,0.25 2.792,0.177 3.042,0.177 3.042,0.177 3.042,1.375 true 2.885,2.552 3.052,2.552 3.052,2.552 3.052,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.208,0.115 2.875,0.354 0.667,0.24 10 false CANH*b 2.281,2.469 3,2.667 0.719,0.198 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-3 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
G96-14 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

Click herePower Source / Network>NETWORKING>NETWORK GATEWAY ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

31.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
a.

Disconnect the G170 certification ECU (smart key ECU assembly) connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C18
1.052,1.24 1.458,1.49 0.406,0.25 2.615,0.375 2.865,0.375 2.865,0.375 2.865,1.375 true 2.646,2.365 2.896,2.365 2.896,2.365 2.896,1.698 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.021,0.313 2.688,0.552 0.667,0.24 10 false CANH*b 2.063,2.292 2.729,2.531 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Certification ECU (Smart Key ECU Assembly)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-2 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
G96-13 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

32.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
a.

Disconnect the G46 air conditioning amplifier assembly connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C20
1.052,1.24 1.458,1.49 0.406,0.25 3.573,0.542 3.406,0.542 3.406,0.542 3.406,1.375 true 3.583,2.219 3.417,2.219 3.417,2.219 3.417,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 3.635,0.479 4.302,0.719 0.667,0.24 10 false CANH*b 3.646,2.167 4.313,2.406 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Air Conditioning Amplifier Assembly


Standard Resistance:
Tester Connection Condition Specified Condition
G96-5 (CANH) - Positive (+) battery terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher
G96-16 (CANL) - Positive (+) battery terminal



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

33.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 CAN JUNCTION CONNECTOR)
a.

Disconnect the G96 No. 1 CAN junction connector.

C476562C16
1.052,1.24 1.458,1.49 0.406,0.25 2.458,0.594 2.708,0.594 2.708,0.594 2.708,1.375 true 2.469,2.135 2.719,2.135 2.719,2.135 2.719,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 1.896,0.521 2.563,0.76 0.667,0.24 10 false CANH*b 1.938,2.052 2.604,2.292 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to No. 7 CAN Junction Connector



b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G96-1 (CANH) - G96-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

34.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

NG

38.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
34.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
a.

Measure the resistance according to the value(s) in the table below.

C476562C17
1.052,1.24 1.458,1.49 0.406,0.25 2.792,0.177 3.042,0.177 3.042,0.177 3.042,1.375 true 2.885,2.552 3.052,2.552 3.052,2.552 3.052,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.208,0.115 2.875,0.354 0.667,0.24 10 false CANH*b 2.281,2.469 3,2.667 0.719,0.198 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-3 (CANH) - G96-14 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

35.CHECK VEHICLE TYPE

NG

44.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
35.CHECK VEHICLE TYPE
a.

Check the vehicle type.


Result:
Result Proceed to
w/ Smart Entry and Start System A
w/o Smart Entry and Start System B



A

36.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

B

37.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
36.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
a.

Measure the resistance according to the value(s) in the table below.

C476562C18
1.052,1.24 1.458,1.49 0.406,0.25 2.615,0.375 2.865,0.375 2.865,0.375 2.865,1.375 true 2.646,2.365 2.896,2.365 2.896,2.365 2.896,1.698 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.021,0.313 2.688,0.552 0.667,0.24 10 false CANH*b 2.063,2.292 2.729,2.531 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Certification ECU (Smart Key ECU Assembly)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-2 (CANH) - G96-13 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

37.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

NG

45.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
37.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
a.

Measure the resistance according to the value(s) in the table below.

C476562C20
1.052,1.24 1.458,1.49 0.406,0.25 3.573,0.542 3.406,0.542 3.406,0.542 3.406,1.375 true 3.583,2.219 3.417,2.219 3.417,2.219 3.417,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 3.635,0.479 4.302,0.719 0.667,0.24 10 false CANH*b 3.646,2.167 4.313,2.406 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Air Conditioning Amplifier Assembly


Standard Resistance:
Tester Connection Condition Specified Condition
G96-5 (CANH) - G96-16 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

REPLACE NO. 1 CAN JUNCTION CONNECTOR

NG

46.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
38.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
a.

Disconnect the N52 No. 7 CAN junction connector.

C414853C23
0.365,1.271 0.823,1.521 0.458,0.25 1.833,1.135 2,1.135 2,1.135 2.448,1.333 true 1.865,1.729 2.031,1.729 2.031,1.729 2.417,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.313,1.073 1.865,1.25 0.552,0.177 10 false CANH*b 1.354,1.667 1.906,1.844 0.552,0.177 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to No. 1 CAN Junction Connector



b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
N52-1 (CANH) - N52-7 (CANL) Cable disconnected from negative (-)battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

39.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)

39.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Measure the resistance according to the value(s) in the table below.

C414853C25
0.365,1.271 0.823,1.521 0.458,0.25 2,0.615 2.167,0.615 2.167,0.615 2.875,1.292 true 1.958,2.125 2.125,2.125 2.125,2.125 2.906,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.354,0.458 1.906,0.635 0.552,0.177 10 false CANH*b 1.396,2.042 2.094,2.292 0.698,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Main Body ECU (Multiplex Network Body ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
N52-2 (CANH) - N52-8 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

40.CHECK VEHICLE TYPE

NG

42.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
40.CHECK VEHICLE TYPE
a.

Check the vehicle type.


Result:
Result Proceed to
w/ Power Back Door System A
w/o Power Back Door System B



A

41.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)

B

REPLACE NO. 7 CAN JUNCTION CONNECTOR

41.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
a.

Measure the resistance according to the value(s) in the table below.

C414853C26
0.365,1.271 0.823,1.521 0.458,0.25 2.594,0.427 2.76,0.427 2.76,0.427 3.354,1.323 true 2.75,2.219 2.917,2.219 2.917,2.219 3.333,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.99,0.354 2.844,0.708 0.854,0.354 10 false CANH*b 2.198,2.125 2.885,2.375 0.688,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Multiplex Network Door ECU


Standard Resistance:
Tester Connection Condition Specified Condition
N52-3 (CANH) - N52-9 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

REPLACE NO. 7 CAN JUNCTION CONNECTOR

NG

43.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
42.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the G169 main body ECU (multiplex network body ECU) connector.


b.

Measure the resistance according to the value(s) in the table below.

C414853C25
0.365,1.271 0.823,1.521 0.458,0.25 2,0.615 2.167,0.615 2.167,0.615 2.875,1.292 true 1.958,2.125 2.125,2.125 2.125,2.125 2.906,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.354,0.458 1.906,0.635 0.552,0.177 10 false CANH*b 1.396,2.042 2.094,2.292 0.698,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Main Body ECU (Multiplex Network Body ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
N52-2 (CANH) - N52-8 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

43.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)
a.

Disconnect the R30 multiplex network door ECU connector.


b.

Measure the resistance according to the value(s) in the table below.

C414853C26
0.365,1.271 0.823,1.521 0.458,0.25 2.594,0.427 2.76,0.427 2.76,0.427 3.354,1.323 true 2.75,2.219 2.917,2.219 2.917,2.219 3.333,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.99,0.354 2.844,0.708 0.854,0.354 10 false CANH*b 2.198,2.125 2.885,2.375 0.688,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Multiplex Network Door ECU


Standard Resistance:
Tester Connection Condition Specified Condition
N52-3 (CANH) - N52-9 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

REPLACE MULTIPLEX NETWORK DOOR ECU

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR CLOSER ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU)

44.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
a.

Disconnect the G174 central gateway ECU (network gateway ECU) connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C17
1.052,1.24 1.458,1.49 0.406,0.25 2.792,0.177 3.042,0.177 3.042,0.177 3.042,1.375 true 2.885,2.552 3.052,2.552 3.052,2.552 3.052,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.208,0.115 2.875,0.354 0.667,0.24 10 false CANH*b 2.281,2.469 3,2.667 0.719,0.198 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-3 (CANH) - G96-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

Click herePower Source / Network>NETWORKING>NETWORK GATEWAY ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

45.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
a.

Disconnect the G170 certification ECU (smart key ECU assembly) connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C18
1.052,1.24 1.458,1.49 0.406,0.25 2.615,0.375 2.865,0.375 2.865,0.375 2.865,1.375 true 2.646,2.365 2.896,2.365 2.896,2.365 2.896,1.698 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.021,0.313 2.688,0.552 0.667,0.24 10 false CANH*b 2.063,2.292 2.729,2.531 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Certification ECU (Smart Key ECU Assembly)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-2 (CANH) - G96-13 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

46.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
a.

Disconnect the G46 air conditioning amplifier assembly connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C20
1.052,1.24 1.458,1.49 0.406,0.25 3.573,0.542 3.406,0.542 3.406,0.542 3.406,1.375 true 3.583,2.219 3.417,2.219 3.417,2.219 3.417,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 3.635,0.479 4.302,0.719 0.667,0.24 10 false CANH*b 3.646,2.167 4.313,2.406 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Air Conditioning Amplifier Assembly


Standard Resistance:
Tester Connection Condition Specified Condition
G96-5 (CANH) - G96-16 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

47.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 CAN JUNCTION CONNECTOR)
a.

Disconnect the G96 No. 1 CAN junction connector.


b.

Measure the resistance according to the value(s) in the table below.

C476562C16
1.052,1.24 1.458,1.49 0.406,0.25 2.458,0.594 2.708,0.594 2.708,0.594 2.708,1.375 true 2.469,2.135 2.719,2.135 2.719,2.135 2.719,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 1.896,0.521 2.563,0.76 0.667,0.24 10 false CANH*b 1.938,2.052 2.604,2.292 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to No. 7 CAN Junction Connector


Standard Resistance:
Tester Connection Condition Specified Condition
G96-1 (CANH) - G96-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

48.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

NG

49.CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
48.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
a.

Measure the resistance according to the value(s) in the table below.

C476562C17
1.052,1.24 1.458,1.49 0.406,0.25 2.792,0.177 3.042,0.177 3.042,0.177 3.042,1.375 true 2.885,2.552 3.052,2.552 3.052,2.552 3.052,1.719 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 1.115,1.292 1.615,1.531 0.5,0.24 10 false G96 2.208,0.115 2.875,0.354 0.667,0.24 10 false CANH*b 2.281,2.469 3,2.667 0.719,0.198 10 false CANL*b
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
G96-3 (CANH) - G96-14 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

REPLACE NO. 1 CAN JUNCTION CONNECTOR

NG

52.CHECK FOR OPEN IN CAN BUS WIRE (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) - NO. 1 CAN JUNCTION CONNECTOR)
49.CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
a.

Reconnect the G96 No. 1 CAN junction connector.


b.

Disconnect the N52 No. 7 CAN junction connector.


c.

Measure the resistance according to the value(s) in the table below.

C414853C23
0.365,1.271 0.823,1.521 0.458,0.25 1.833,1.135 2,1.135 2,1.135 2.448,1.333 true 1.865,1.729 2.031,1.729 2.031,1.729 2.417,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.313,1.073 1.865,1.25 0.552,0.177 10 false CANH*b 1.354,1.667 1.906,1.844 0.552,0.177 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to No. 1 CAN Junction Connector


Standard Resistance:
Tester Connection Condition Specified Condition
N52-1 (CANH) - N52-7 (CANL) Cable disconnected from negative (-)battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

50.CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)

50.CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Measure the resistance according to the value(s) in the table below.

C414853C25
0.365,1.271 0.823,1.521 0.458,0.25 2,0.615 2.167,0.615 2.167,0.615 2.875,1.292 true 1.958,2.125 2.125,2.125 2.125,2.125 2.906,1.563 true 0.115,0.073 0.427,0.271 0.313,0.198 10 false *a 0.438,1.323 0.802,1.479 0.365,0.156 10 false N52 1.354,0.458 1.906,0.635 0.552,0.177 10 false CANH*b 1.396,2.042 2.094,2.292 0.698,0.25 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Main Body ECU (Multiplex Network Body ECU)


Standard Resistance:
Tester Connection Condition Specified Condition
N52-2 (CANH) - N52-8 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

REPLACE NO. 7 CAN JUNCTION CONNECTOR

NG

51.CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - NO. 7 CAN JUNCTION CONNECTOR)
51.CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - NO. 7 CAN JUNCTION CONNECTOR)
a.

Reconnect the N52 No. 7 CAN junction connector.


b.

Disconnect the G169 main body ECU (multiplex network body ECU) connector.


c.
C369119C74
1.552,0.229 2.052,0.51 0.5,0.281 1.26,0.885 1.073,0.885 1.073,0.885 0.938,1.615 true 1.146,0.656 0.958,0.656 0.958,0.656 0.771,1.615 true 0.094,0.104 0.406,0.302 0.313,0.198 10 false *a 1.625,0.281 2.031,0.583 0.406,0.302 10 false G169 1.333,0.792 1.813,1 0.479,0.208 10 false CANH 1.198,0.583 1.677,0.792 0.479,0.208 10 false CANL
*a Front view of wire harness connector
(to Main Body ECU [Multiplex Network Body ECU])


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G169-2 (CANH) - G169-1 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - NO. 7 CAN JUNCTION CONNECTOR)

52.CHECK FOR OPEN IN CAN BUS WIRE (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) - NO. 1 CAN JUNCTION CONNECTOR)
a.

Reconnect the G96 No. 1 CAN junction connector.


b.

Disconnect the G174 central gateway ECU (network gateway ECU) connector.


c.

Measure the resistance according to the value(s) in the table below.

C422308C56
0.625,0.792 1.125,1.042 0.5,0.25 2.75,0.729 2.75,1.604 2.75,1.604 2.583,1.604 true 2.885,0.771 2.885,1.615 2.885,1.615 3.042,1.615 true 0.115,0.115 0.427,0.313 0.313,0.198 10 false *a 0.698,0.833 1.135,1.052 0.438,0.219 10 false G174 2.167,1.531 2.781,1.729 0.615,0.198 10 false CA5H 3.094,1.542 3.708,1.74 0.615,0.198 10 false CA5L
*a Front view of wire harness connector
(to Central Gateway ECU [Network Gateway ECU]) 		- -


Standard Resistance:
Tester Connection Condition Specified Condition
G174-7 (CA5H) - G174-8 (CA5L) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

Click herePower Source / Network>NETWORKING>NETWORK GATEWAY ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) - NO. 1 CAN JUNCTION CONNECTOR)