RM35X0E _57 Power Source / Network _078518 NETWORKING _0381088 CAN COMMUNICATION SYSTEM J

NETWORKING  CAN COMMUNICATION SYSTEM  Check Bus 2 Line  


DESCRIPTION

Symptom Trouble Area

*1: for Water Cooled Type Intercooler

*2: w/ Stop and Start 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 main bus lines or connector

·

Central gateway ECU (network gateway ECU)

·

Urea pump control ECU*1

·

Engine stop and start ECU*2

·

ECM

·

No. 7 CAN junction connector



WIRING DIAGRAM

C413728
3.177,2.552 3.792,2.75 0.615,0.198 10 false N127 3.177,2.74 4.531,3.104 1.354,0.365 10 false No. 7 CAN Junction Connector 3.458,0.271 4.073,0.469 0.615,0.198 10 false 6 3.396,0.667 4.01,0.865 0.615,0.198 10 false 17 4.052,0.271 4.667,0.469 0.615,0.198 10 false 4 4.052,0.656 4.667,0.854 0.615,0.198 10 false 15 5.323,0.927 5.938,1.125 0.615,0.198 10 false N37 5.313,1.115 7.115,1.563 1.802,0.448 10 false Urea Pump Control ECU*1 0.188,3.094 2.698,3.302 2.51,0.208 10 false *1: for Water Cooled Type Intercooler 6.031,0.781 6.646,0.979 0.615,0.198 10 false CAN- 6.031,0.385 6.646,0.583 0.615,0.198 10 false CAN+ 5.771,0.271 6.385,0.469 0.615,0.198 10 false 27 5.771,0.677 6.385,0.875 0.615,0.198 10 false 26 0.229,2.49 0.844,2.688 0.615,0.198 10 false N33 0.229,2.646 2.094,2.969 1.865,0.323 10 false Engine Stop and Start ECU*2 0.885,1.979 1.5,2.177 0.615,0.198 10 false CANH 0.896,2.354 1.51,2.552 0.615,0.198 10 false CANL 1.365,1.865 1.979,2.063 0.615,0.198 10 false 13 1.385,2.26 2,2.458 0.615,0.198 10 false 14 3.406,2.271 4.021,2.469 0.615,0.198 10 false 14 3.458,1.854 4.073,2.052 0.615,0.198 10 false 3 4.042,2.25 4.656,2.448 0.615,0.198 10 false 12 4.073,1.865 4.688,2.063 0.615,0.198 10 false 1 5.188,2.375 5.802,2.573 0.615,0.198 10 false N1 5.146,2.177 5.76,2.375 0.615,0.198 10 false 35*3 5.198,1.969 5.813,2.167 0.615,0.198 10 false N1 5.135,1.76 5.75,1.958 0.615,0.198 10 false 27*3 5.646,2.375 6.26,2.573 0.615,0.198 10 false N2 5.604,2.167 6.219,2.365 0.615,0.198 10 false 28*4 5.594,1.76 6.208,1.958 0.615,0.198 10 false 17*4 5.646,1.969 6.26,2.167 0.615,0.198 10 false N2 6.042,2.469 6.656,2.667 0.615,0.198 10 false CANL 6.031,1.875 6.646,2.073 0.615,0.198 10 false CANH 6.125,2.719 6.74,2.917 0.615,0.198 10 false ECM 0.177,3.427 2.188,3.677 2.01,0.25 10 false *2: w/ Stop and Start System 2.448,3.438 4.177,3.677 1.729,0.24 10 false *3: for 7GR-FKS 3.917,3.427 5.646,3.667 1.729,0.24 10 false *4: for 1GD-FTV 0.885,0.292 1.5,0.49 0.615,0.198 10 false CA4H 0.896,0.875 1.51,1.073 0.615,0.198 10 false CA4L 0.219,0.917 0.833,1.115 0.615,0.198 10 false N21 0.188,1.104 2.188,1.49 2,0.385 10 false Central Gateway ECU (Network Gateway ECU) 1.365,0.281 1.979,0.479 0.615,0.198 10 false 18 1.396,0.698 2.01,0.896 0.615,0.198 10 false 17

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>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.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>WORK PROCEDURE

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 to 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>DIAGNOSIS SYSTEM



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.
C368243C50
1.448,0.104 1.917,0.323 0.469,0.219 0.833,1.75 1,1.75 1,1.75 1.667,1.104 true 1.75,1.125 2.25,1.75 2.25,1.75 2.417,1.75 true 0.406,1.667 0.865,1.865 0.458,0.198 10 false CA4H 1.573,0.135 2.031,0.333 0.458,0.198 10 false N21 2.49,1.667 2.948,1.865 0.458,0.198 10 false CA4L 0.083,0.063 0.542,0.26 0.458,0.198 10 false *a
*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
N21-18 (CA4H) - N21-17 (CA4L) Cable disconnected from negative (-) battery terminal Below 70 Ω



Result:
Proceed to
OK
NG



OK

2.CHECK FOR SHORT IN CAN BUS WIRES

NG

35.CHECK FOR OPEN IN CAN BUS WIRE (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 7 CAN JUNCTION CONNECTOR)
2.CHECK FOR SHORT IN CAN BUS WIRES
a.
C368243C50
1.448,0.104 1.917,0.323 0.469,0.219 0.833,1.75 1,1.75 1,1.75 1.667,1.104 true 1.75,1.125 2.25,1.75 2.25,1.75 2.417,1.75 true 0.406,1.667 0.865,1.865 0.458,0.198 10 false CA4H 1.573,0.135 2.031,0.333 0.458,0.198 10 false N21 2.49,1.667 2.948,1.865 0.458,0.198 10 false CA4L 0.083,0.063 0.542,0.26 0.458,0.198 10 false *a
*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
N21-18 (CA4H) - N21-17 (CA4L) 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

25.CHECK FOR SHORT IN CAN BUS WIRES (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 7 CAN JUNCTION CONNECTOR)
3.CHECK FOR SHORT TO B+ IN CAN BUS WIRE
a.
C324419C57
1.448,0.25 1.917,0.51 0.469,0.26 1.427,2.365 1.896,2.625 0.469,0.26 2.365,3.604 2.031,4.271 2.031,4.271 1.865,4.271 true 1.656,1.146 1.49,1.76 1.49,1.76 1.323,1.76 true 1.75,1.146 1.948,1.76 1.948,1.76 2.104,1.76 true 1.594,3.146 1.156,2.615 1.156,2.615 0.99,2.615 true 0.063,0.052 0.375,0.25 0.313,0.198 10 false *a 0.115,2.198 0.427,2.396 0.313,0.198 10 false *b 1.552,0.302 2.042,0.552 0.49,0.25 10 false N21 1.573,2.417 2.063,2.667 0.49,0.25 10 false N8 0.917,1.677 1.406,1.927 0.49,0.25 10 false CA4H 1.573,4.188 2.063,4.438 0.49,0.25 10 false BAT 2.146,1.677 2.635,1.927 0.49,0.25 10 false CA4L 0.75,2.542 1.24,2.792 0.49,0.25 10 false CG
*a Component with harness connected
(Central Gateway ECU [Network Gateway ECU])
*b Front view of DLC3


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

Standard Resistance:
Tester Connection Condition Specified Condition
N21-18 (CA4H) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N21-17 (CA4L) - N8-16 (BAT)



Result:
Proceed to
OK
NG



OK

4.CHECK FOR SHORT TO GND IN CAN BUS WIRE

NG

15.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 7 CAN JUNCTION CONNECTOR)
4.CHECK FOR SHORT TO GND IN CAN BUS WIRE
a.
C324419C58
1.448,0.25 1.917,0.51 0.469,0.26 1.427,2.365 1.896,2.625 0.469,0.26 1.656,1.146 1.49,1.76 1.49,1.76 1.323,1.76 true 1.75,1.146 1.948,1.76 1.948,1.76 2.104,1.76 true 1.625,3.24 1.958,4.115 1.958,4.115 2.115,4.115 true 0.063,0.052 0.375,0.25 0.313,0.198 10 false *a 0.115,2.198 0.427,2.396 0.313,0.198 10 false *b 1.552,0.302 2.042,0.552 0.49,0.25 10 false N21 1.573,2.417 2.063,2.667 0.49,0.25 10 false N8 0.917,1.677 1.406,1.927 0.49,0.25 10 false CA4H 2.135,4.021 2.625,4.271 0.49,0.25 10 false CG 2.146,1.677 2.635,1.927 0.49,0.25 10 false CA4L
*a Component with harness connected
(Central Gateway ECU [Network Gateway ECU])
*b Front view of DLC3


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

Standard Resistance:
Tester Connection Condition Specified Condition
N21-18 (CA4H) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
N21-17 (CA4L) - N8-4 (CG)



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 (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 7 CAN JUNCTION CONNECTOR)
5.CHECK FOR SHORT TO GND IN CAN BUS WIRE (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414215C05
1.479,0.26 1.917,0.469 0.438,0.208 1.438,2.542 1.875,2.75 0.438,0.208 2.146,4.24 1.979,4.24 1.979,4.24 1.646,3.302 true 2.292,2.156 2.073,2.156 2.073,2.156 1.802,1.51 true 1.646,1.49 1.375,2.125 1.375,2.125 1.208,2.125 true 1.573,0.292 2.188,0.49 0.615,0.198 10 false N21 1.573,2.573 2.188,2.771 0.615,0.198 10 false N8 0.094,0.073 0.708,0.271 0.615,0.198 10 false *a 0.104,2.563 0.719,2.76 0.615,0.198 10 false *b 2.229,4.167 2.844,4.365 0.615,0.198 10 false CG 2.333,2.083 2.865,2.292 0.531,0.208 10 false CA4H 0.792,2.052 1.406,2.25 0.615,0.198 10 false CA4L
*a Front view of wire harness connector
(to Central Gateway ECU [Network Gateway ECU])
*b Front view of DLC3


Disconnect the N21 central gateway ECU (network gateway ECU) connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N21-18 (CA4H) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
N21-17 (CA4L) - N8-4 (CG)



c.

Reconnect the N21 central gateway ECU (network gateway ECU) connector.


Result:
Proceed to
OK
NG



OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

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


NG

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

Disconnect the N1*1 or N2*2 ECM connector.

*1: for 7GR-FKS

*2: for 1GD-FTV


C414289C01
1.99,0.208 2.49,0.448 0.5,0.24 5.125,0.76 5.625,1 0.5,0.24 1.99,0.51 2.49,0.75 0.5,0.24 1.135,1.531 1.302,1.531 1.302,1.531 1.531,1.781 true 1.125,2.26 1.292,2.26 1.292,2.26 1.531,2.01 true 3.302,2.25 3.135,2.25 3.135,2.25 2.927,2.031 true 5.729,2.344 5.563,2.344 5.563,2.344 5.302,1.573 true 3.302,1.563 3.135,1.563 3.135,1.563 2.917,1.771 true 2.146,0.25 2.76,0.448 0.615,0.198 10 false N2 5.292,0.802 5.906,1 0.615,0.198 10 false N8 0.146,0.104 0.76,0.302 0.615,0.198 10 false *a 0.552,1.448 1.448,1.688 0.896,0.24 10 false CANH*A 0.531,2.188 1.396,2.49 0.865,0.302 10 false CANL*A 5.771,2.26 6.385,2.458 0.615,0.198 10 false CG 2.146,0.552 2.76,0.75 0.615,0.198 10 false N1 2.542,0.25 3.156,0.448 0.615,0.198 10 false *A 2.542,0.552 3.156,0.75 0.615,0.198 10 false *B 3.344,1.49 4.24,1.729 0.896,0.24 10 false CANH*B 3.354,2.177 4.219,2.479 0.865,0.302 10 false CANL*B 4.281,0.375 4.896,0.573 0.615,0.198 10 false *b
*A for 1GD-FTV *B for 7GR-FKS
*a Front view of wire harness connector
(to ECM) 		*b Front view of DLC3



b.

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

Standard Resistance:
for 7GR-FKS
Tester Connection Condition Specified Condition
N1-27 (CANH) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
N1-35 (CANL) - N8-4 (CG)

for 1GD-FTV
Tester Connection Condition Specified Condition
N2-17 (CANH) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
N2-28 (CANL) - N8-4 (CG)



c.

Reconnect the N1*1 or N2*2 ECM connector.

*1: for 7GR-FKS

*2: for 1GD-FTV



Result:
Proceed to
OK
NG



OK

REPLACE ECM

for 7GR-FKS: Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL

for 1GD-FTV: Click hereEngine / Hybrid System>1GD-FTV (ENGINE CONTROL)>ECM>REMOVAL


NG

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

Disconnect the N127 No. 7 CAN junction connector.

C414290
2.021,0.25 2.427,0.5 0.406,0.25 5.167,0.552 5.573,0.802 0.406,0.25 3.5,0.854 3.313,0.854 3.313,0.854 2.219,1.542 true 3.5,2.25 3.323,2.25 3.323,2.25 2.229,1.833 true 5.708,2.229 5.531,2.229 5.531,2.229 5.302,1.51 true 0.135,0.094 0.531,0.365 0.396,0.271 10 false *a 2.063,0.292 2.563,0.531 0.5,0.24 10 false N127 3.552,0.781 4.219,1.021 0.667,0.24 10 false CANH*c 3.563,2.167 4.229,2.406 0.667,0.24 10 false CANL*c 4.292,0.094 4.635,0.406 0.344,0.313 10 false *b 5.281,0.604 5.781,0.844 0.5,0.24 10 false N8 5.75,2.146 6.417,2.385 0.667,0.24 10 false CG
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b Front view of DLC3
*c to Central Gateway ECU (Network Gateway ECU) - -



b.

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

Standard Resistance:
Tester Connection Condition Specified Condition Connected to
N127-6 (CANH) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher Central gateway ECU (network gateway ECU)
N127-17 (CANL) - N8-4 (CG)



c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

8.CHECK VEHICLE TYPE

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])

8.CHECK VEHICLE TYPE
a.

Check for vehicle type.


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



A

9.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU)

B

10.CHECK VEHICLE TYPE
9.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU)
a.

Disconnect the N127 No. 7 CAN junction connector.

C414290
2.021,0.25 2.427,0.5 0.406,0.25 5.167,0.552 5.573,0.802 0.406,0.25 0.906,2.25 1.073,2.25 1.073,2.25 1.708,1.833 true 0.896,0.896 1.052,0.896 1.052,0.896 1.708,1.531 true 5.708,2.229 5.531,2.229 5.531,2.229 5.302,1.51 true 0.135,0.094 0.531,0.365 0.396,0.271 10 false *a 2.063,0.292 2.563,0.531 0.5,0.24 10 false N127 0.365,0.823 1.031,1.063 0.667,0.24 10 false CANH*c 0.375,2.177 1.042,2.417 0.667,0.24 10 false CANL*c 4.292,0.094 4.635,0.406 0.344,0.313 10 false *b 5.281,0.604 5.781,0.844 0.5,0.24 10 false N8 5.75,2.146 6.417,2.385 0.667,0.24 10 false CG
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b Front view of DLC3
*c to Engine Stop and Start ECU - -



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-3 (CANH) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher Engine stop and start ECU
N127-14 (CANL) - N8-4 (CG)


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

10.CHECK VEHICLE TYPE

NG

13.CHECK FOR SHORT TO GND IN CAN BUS WIRE (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)
10.CHECK VEHICLE TYPE
a.

Check for vehicle type.


Result:
Result Proceed to
for Water Cooled Type Intercooler A
except Water Cooled Type Intercooler B



A

11.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - UREA PUMP CONTROL ECU)

B

12.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)
11.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - UREA PUMP CONTROL ECU)
a.

Disconnect the N127 No. 7 CAN junction connector.

C414290
2.021,0.25 2.427,0.5 0.406,0.25 5.167,0.552 5.573,0.802 0.406,0.25 2.875,0.615 2.719,0.615 2.719,0.615 1.885,1.531 true 2.865,2.49 2.708,2.49 2.708,2.49 1.896,1.833 true 5.708,2.229 5.531,2.229 5.531,2.229 5.302,1.51 true 0.135,0.094 0.531,0.365 0.396,0.271 10 false *a 2.063,0.292 2.563,0.531 0.5,0.24 10 false N127 2.948,0.531 3.615,0.771 0.667,0.24 10 false CANH*c 2.948,2.417 3.615,2.656 0.667,0.24 10 false CANL*c 4.292,0.094 4.635,0.406 0.344,0.313 10 false *b 5.281,0.604 5.781,0.844 0.5,0.24 10 false N8 5.75,2.146 6.417,2.385 0.667,0.24 10 false CG
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b Front view of DLC3
*c to Urea Pump Control ECU - -



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-4 (CANH) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher Urea pump control ECU
N127-15 (CANL) - N8-4 (CG)


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

12.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)

NG

14.CHECK FOR SHORT TO GND IN CAN BUS WIRE (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)
12.CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)
a.

Disconnect the N127 No. 7 CAN junction connector.

C414290
2.021,0.25 2.427,0.5 0.406,0.25 5.167,0.552 5.573,0.802 0.406,0.25 0.896,1.24 1.052,1.24 1.052,1.24 1.354,1.521 true 0.917,1.99 1.063,1.99 1.063,1.99 1.365,1.844 true 5.708,2.229 5.531,2.229 5.531,2.229 5.302,1.51 true 0.135,0.094 0.531,0.365 0.396,0.271 10 false *a 2.063,0.292 2.563,0.531 0.5,0.24 10 false N127 0.365,1.146 1.031,1.385 0.667,0.24 10 false CANH*c 0.365,1.875 1.031,2.115 0.667,0.24 10 false CANL*c 4.292,0.094 4.635,0.406 0.344,0.313 10 false *b 5.281,0.604 5.781,0.844 0.5,0.24 10 false N8 5.75,2.146 6.417,2.385 0.667,0.24 10 false CG
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b Front view of DLC3
*c to ECM - -



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-1 (CANH) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher ECM
N127-12 (CANL) - N8-4 (CG)


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

REPLACE NO. 7 CAN JUNCTION CONNECTOR

NG

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

13.CHECK FOR SHORT TO GND IN CAN BUS WIRE (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414291C01
1.49,0.281 1.927,0.521 0.438,0.24 1.49,2.594 1.927,2.833 0.438,0.24 0.615,2.042 0.75,2.042 0.75,2.042 0.75,1.604 true 1.021,2.052 0.885,2.052 0.885,2.052 0.885,1.615 true 2.031,4.292 1.896,4.292 1.896,4.292 1.615,3.458 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 0.115,2.51 0.531,2.823 0.417,0.313 10 false *b 1.594,0.323 1.927,0.542 0.333,0.219 10 false N33 0.208,1.969 0.823,2.167 0.615,0.198 10 false CANH 1.052,1.969 1.667,2.167 0.615,0.198 10 false CANL 1.635,2.635 1.969,2.854 0.333,0.219 10 false N8 2.073,4.208 2.688,4.406 0.615,0.198 10 false CG
*a Front view of wire harness connector
(to Engine Stop and Start ECU)
*b Front view of DLC3


Disconnect the N33 engine stop and start ECU connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N33-13 (CANH) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
N33-14 (CANL) - N8-4 (CG)



c.

Reconnect the N33 engine stop and start ECU connector.


Result:
Proceed to
OK
NG



OK

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)

14.CHECK FOR SHORT TO GND IN CAN BUS WIRE (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414292C01
1.5,0.177 1.917,0.427 0.417,0.25 1.5,2.771 1.917,3.021 0.417,0.25 1.792,0.698 1.938,0.698 1.938,0.698 2.125,1.396 true 2.552,0.698 2.396,0.698 2.396,0.698 2.24,1.396 true 2.031,4.396 1.875,4.396 1.875,4.396 1.625,3.615 true 0.146,0.115 0.458,0.271 0.313,0.156 10 false *a 2.594,0.615 3.208,0.813 0.615,0.198 10 false CAN+ 1.417,0.604 2.031,0.802 0.615,0.198 10 false CAN- 1.583,0.229 1.917,0.427 0.333,0.198 10 false N37 1.625,2.823 1.958,3.021 0.333,0.198 10 false N8 2.073,4.313 2.688,4.51 0.615,0.198 10 false CG 0.146,2.625 0.521,3.01 0.375,0.385 10 false *b
*a Front view of wire harness connector
(to Urea Pump Control ECU)
*b Front view of DLC3


Disconnect the N37 urea pump control ECU connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N37-27 (CAN+) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
N37-26 (CAN-) - N8-4 (CG)



c.

Reconnect the N37 urea pump control ECU connector.


Result:
Proceed to
OK
NG



OK

REPLACE UREA PUMP CONTROL ECU

Click hereEngine / Hybrid System>1GD-FTV (EMISSION CONTROL)>UREA PUMP CONTROL ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)

15.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414215C06
1.479,0.26 1.917,0.469 0.438,0.208 1.438,2.542 1.875,2.75 0.438,0.208 2.292,2.156 2.073,2.156 2.073,2.156 1.802,1.51 true 1.646,1.49 1.375,2.125 1.375,2.125 1.208,2.125 true 2.354,3.688 2.115,4.25 2.115,4.25 1.948,4.25 true 1.573,0.292 2.188,0.49 0.615,0.198 10 false N21 1.573,2.573 2.188,2.771 0.615,0.198 10 false N8 0.094,0.073 0.708,0.271 0.615,0.198 10 false *a 0.104,2.563 0.719,2.76 0.615,0.198 10 false *b 1.635,4.167 2.25,4.365 0.615,0.198 10 false BAT 2.333,2.083 2.865,2.292 0.531,0.208 10 false CA4H 0.792,2.052 1.406,2.25 0.615,0.198 10 false CA4L
*a Front view of wire harness connector
(to Central Gateway ECU [Network Gateway ECU])
*b Front view of DLC3


Disconnect the N21 central gateway ECU (network gateway ECU) connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N21-18 (CA4H) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N21-17 (CA4L) - N8-16 (BAT)



c.

Reconnect the N21 central gateway ECU (network gateway ECU) connector.


Result:
Proceed to
OK
NG



OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

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


NG

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

Disconnect the N1*1 or N2*2 ECM connector.

*1: for 7GR-FKS

*2: for 1GD-FTV


C414289C02
1.99,0.208 2.49,0.448 0.5,0.24 5.125,0.76 5.625,1 0.5,0.24 1.99,0.51 2.49,0.75 0.5,0.24 1.135,1.531 1.302,1.531 1.302,1.531 1.531,1.781 true 1.125,2.26 1.292,2.26 1.292,2.26 1.531,2.01 true 3.302,2.25 3.135,2.25 3.135,2.25 2.927,2.031 true 3.302,1.563 3.135,1.563 3.135,1.563 2.917,1.771 true 5.615,2.344 5.781,2.344 5.781,2.344 5.906,1.896 true 2.146,0.25 2.76,0.448 0.615,0.198 10 false N2 5.292,0.802 5.906,1 0.615,0.198 10 false N8 0.146,0.104 0.76,0.302 0.615,0.198 10 false *a 0.552,1.469 1.448,1.708 0.896,0.24 10 false CANH*A 0.563,2.188 1.427,2.49 0.865,0.302 10 false CANL*A 5.292,2.26 5.906,2.458 0.615,0.198 10 false BAT 2.146,0.552 2.76,0.75 0.615,0.198 10 false N1 2.542,0.25 3.156,0.448 0.615,0.198 10 false *A 2.542,0.552 3.156,0.75 0.615,0.198 10 false *B 3.344,1.49 4.24,1.729 0.896,0.24 10 false CANH*B 3.354,2.177 4.219,2.479 0.865,0.302 10 false CANL*B 4.281,0.375 4.896,0.573 0.615,0.198 10 false *b
*A for 1GD-FTV *B for 7GR-FKS
*a Front view of wire harness connector
(to ECM) 		*b Front view of DLC3



b.

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

Standard Resistance:
for 7GR-FKS
Tester Connection Condition Specified Condition
N1-27 (CANH) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N1-35 (CANL) - N8-16 (BAT)

for 1GD-FTV
Tester Connection Condition Specified Condition
N2-17 (CANH) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N2-28 (CANL) - N8-16 (BAT)



c.

Reconnect the N1*1 or N2*2 ECM connector.

*1: for 7GR-FKS

*2: for 1GD-FTV



Result:
Proceed to
OK
NG



OK

REPLACE ECM

for 7GR-FKS: Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL

for 1GD-FTV: Click hereEngine / Hybrid System>1GD-FTV (ENGINE CONTROL)>ECM>REMOVAL


NG

17.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])
17.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])
a.

Disconnect the N127 No. 7 CAN junction connector.

C414290
2.021,0.25 2.427,0.5 0.406,0.25 5.167,0.552 5.573,0.802 0.406,0.25 3.5,0.854 3.313,0.854 3.313,0.854 2.219,1.542 true 3.5,2.25 3.323,2.25 3.323,2.25 2.229,1.833 true 5.583,2.24 5.729,2.24 5.729,2.24 5.906,1.813 true 0.135,0.094 0.531,0.365 0.396,0.271 10 false *a 2.063,0.292 2.563,0.531 0.5,0.24 10 false N127 3.552,0.781 4.219,1.021 0.667,0.24 10 false CANH*c 3.563,2.167 4.229,2.406 0.667,0.24 10 false CANL*c 4.292,0.094 4.635,0.406 0.344,0.313 10 false *b 5.281,0.604 5.781,0.844 0.5,0.24 10 false N8 5.271,2.156 5.938,2.396 0.667,0.24 10 false BAT
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b Front view of DLC3
*c to Central Gateway ECU (Network Gateway ECU) - -



b.

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

Standard Resistance:
Tester Connection Condition Specified Condition Connected to
N127-6 (CANH) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Central gateway ECU (network gateway ECU)
N127-17 (CANL) - N8-16 (BAT)



c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

18.CHECK VEHICLE TYPE

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])

18.CHECK VEHICLE TYPE
a.

Check for vehicle type.


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



A

19.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU)

B

20.CHECK VEHICLE TYPE
19.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU)
a.

Disconnect the N127 No. 7 CAN junction connector.

C414290
2.021,0.25 2.427,0.5 0.406,0.25 5.167,0.552 5.573,0.802 0.406,0.25 0.906,2.25 1.073,2.25 1.073,2.25 1.708,1.833 true 0.896,0.896 1.052,0.896 1.052,0.896 1.708,1.531 true 5.583,2.24 5.729,2.24 5.729,2.24 5.906,1.813 true 0.135,0.094 0.531,0.365 0.396,0.271 10 false *a 2.063,0.292 2.563,0.531 0.5,0.24 10 false N127 0.365,0.823 1.031,1.063 0.667,0.24 10 false CANH*c 0.375,2.177 1.042,2.417 0.667,0.24 10 false CANL*c 4.292,0.094 4.635,0.406 0.344,0.313 10 false *b 5.281,0.604 5.781,0.844 0.5,0.24 10 false N8 5.271,2.156 5.938,2.396 0.667,0.24 10 false BAT
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b Front view of DLC3
*c to Engine Stop and Start ECU - -



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-3 (CANH) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Engine stop and start ECU
N127-14 (CANL) - N8-16 (BAT)


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

20.CHECK VEHICLE TYPE

NG

23.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)
20.CHECK VEHICLE TYPE
a.

Check for vehicle type.


Result:
Result Proceed to
for Water Cooled Type Intercooler A
except Water Cooled Type Intercooler B



A

21.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - UREA PUMP CONTROL ECU)

B

22.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)
21.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - UREA PUMP CONTROL ECU)
a.

Disconnect the N127 No. 7 CAN junction connector.

C414290
2.021,0.25 2.427,0.5 0.406,0.25 5.167,0.552 5.573,0.802 0.406,0.25 2.875,0.615 2.719,0.615 2.719,0.615 1.885,1.531 true 2.865,2.49 2.708,2.49 2.708,2.49 1.896,1.833 true 5.583,2.24 5.729,2.24 5.729,2.24 5.906,1.813 true 0.135,0.094 0.531,0.365 0.396,0.271 10 false *a 2.063,0.292 2.563,0.531 0.5,0.24 10 false N127 2.948,0.531 3.615,0.771 0.667,0.24 10 false CANH*c 2.948,2.417 3.615,2.656 0.667,0.24 10 false CANL*c 4.292,0.094 4.635,0.406 0.344,0.313 10 false *b 5.281,0.604 5.781,0.844 0.5,0.24 10 false N8 5.271,2.156 5.938,2.396 0.667,0.24 10 false BAT
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b Front view of DLC3
*c to Urea Pump Control ECU - -



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-4 (CANH) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Urea pump control ECU
N127-15 (CANL) - N8-16 (BAT)


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

22.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)

NG

24.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)
22.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)
a.

Disconnect the N127 No. 7 CAN junction connector.

C414290
2.021,0.25 2.427,0.5 0.406,0.25 5.167,0.552 5.573,0.802 0.406,0.25 0.896,1.24 1.052,1.24 1.052,1.24 1.354,1.521 true 0.917,1.99 1.063,1.99 1.063,1.99 1.365,1.844 true 5.583,2.24 5.729,2.24 5.729,2.24 5.906,1.813 true 0.135,0.094 0.531,0.365 0.396,0.271 10 false *a 2.063,0.292 2.563,0.531 0.5,0.24 10 false N127 0.365,1.146 1.031,1.385 0.667,0.24 10 false CANH*c 0.365,1.875 1.031,2.115 0.667,0.24 10 false CANL*c 4.292,0.094 4.635,0.406 0.344,0.313 10 false *b 5.281,0.604 5.781,0.844 0.5,0.24 10 false N8 5.271,2.156 5.938,2.396 0.667,0.24 10 false BAT
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b Front view of DLC3
*c to ECM - -



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-1 (CANH) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher ECM
N127-12 (CANL) - N8-16 (BAT)


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

REPLACE NO. 7 CAN JUNCTION CONNECTOR

NG

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

23.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414291C02
1.49,0.281 1.927,0.521 0.438,0.24 1.49,2.594 1.927,2.833 0.438,0.24 0.615,2.042 0.75,2.042 0.75,2.042 0.75,1.604 true 1.021,2.052 0.885,2.052 0.885,2.052 0.885,1.615 true 1.958,4.292 2.094,4.292 2.094,4.292 2.354,3.854 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 0.115,2.51 0.531,2.823 0.417,0.313 10 false *b 1.594,0.323 1.927,0.542 0.333,0.219 10 false N33 0.208,1.969 0.823,2.167 0.615,0.198 10 false CANH 1.052,1.969 1.667,2.167 0.615,0.198 10 false CANL 1.635,2.635 1.969,2.854 0.333,0.219 10 false N8 1.635,4.198 2.25,4.396 0.615,0.198 10 false BAT
*a Front view of wire harness connector
(to Engine Stop and Start ECU)
*b Front view of DLC3


Disconnect the N33 engine stop and start ECU connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N33-13 (CANH) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N33 -14 (CANL) - N8-16 (BAT)



c.

Reconnect the N33 engine stop and start ECU connector.


Result:
Proceed to
OK
NG



OK

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)

24.CHECK FOR SHORT TO B+ IN CAN BUS WIRE (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414292C02
1.5,0.177 1.917,0.427 0.417,0.25 1.5,2.771 1.917,3.021 0.417,0.25 1.792,0.698 1.938,0.698 1.938,0.698 2.125,1.396 true 2.552,0.698 2.396,0.698 2.396,0.698 2.24,1.396 true 1.99,4.406 2.135,4.406 2.135,4.406 2.365,4 true 0.146,0.115 0.458,0.271 0.313,0.156 10 false *a 2.594,0.615 3.208,0.813 0.615,0.198 10 false CAN+ 1.417,0.604 2.031,0.802 0.615,0.198 10 false CAN- 1.583,0.229 1.917,0.427 0.333,0.198 10 false N37 1.625,2.823 1.958,3.021 0.333,0.198 10 false N8 1.677,4.313 2.292,4.51 0.615,0.198 10 false BAT 0.146,2.625 0.521,3.01 0.375,0.385 10 false *b
*a Front view of wire harness connector
(to Urea Pump Control ECU)
*b Front view of DLC3


Disconnect the N37 urea pump control ECU connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N37-27 (CAN+) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
N37-26 (CAN-) - N8-16 (BAT)



c.

Reconnect the N37 urea pump control ECU connector.


Result:
Proceed to
OK
NG



OK

REPLACE UREA PUMP CONTROL ECU

Click hereEngine / Hybrid System>1GD-FTV (EMISSION CONTROL)>UREA PUMP CONTROL ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)

25.CHECK FOR SHORT IN CAN BUS WIRES (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 7 CAN JUNCTION CONNECTOR)
a.
C368242C44
1.417,0.24 1.958,0.458 0.542,0.219 1.292,1.823 1.49,1.823 1.49,1.823 1.656,1.313 true 2.188,1.813 1.906,1.813 1.906,1.813 1.781,1.302 true 1.573,0.281 2.031,0.479 0.458,0.198 10 false N21 0.948,1.74 1.406,1.938 0.458,0.198 10 false CA4L 2.229,1.729 2.708,1.927 0.479,0.198 10 false CA4H 0.073,0.052 0.531,0.25 0.458,0.198 10 false *a
*a Front view of wire harness connector
(to Central Gateway ECU [Network Gateway ECU])


Disconnect the N21 central gateway ECU (network gateway ECU) connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N21-18 (CA4H) - N21-17 (CA4L) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



c.

Reconnect the N21 central gateway ECU (network gateway ECU) connector.


Result:
Proceed to
OK
NG



OK

REPLACE NETWORK GATEWAY ECU

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


NG

26.CHECK FOR SHORT IN CAN BUS WIRES (ECM - NO. 7 CAN JUNCTION CONNECTOR)
26.CHECK FOR SHORT IN CAN BUS WIRES (ECM - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414293C01
1.521,0.333 1.927,0.563 0.406,0.229 1.521,0.625 1.927,0.854 0.406,0.229 0.656,2.656 0.76,2.656 0.76,2.656 0.99,2.375 true 0.656,1.927 0.771,1.927 0.771,1.927 0.99,2.146 true 2.417,2.375 2.552,2.656 2.552,2.656 2.667,2.656 true 2.406,2.146 2.583,1.938 2.583,1.938 2.698,1.938 true 1.979,0.375 2.292,0.625 0.313,0.25 10 false *A 1.979,0.656 2.323,1.01 0.344,0.354 10 false *B 0.125,0.083 0.406,0.354 0.281,0.271 10 false *a 1.656,0.365 1.917,0.563 0.26,0.198 10 false N2 1.656,0.656 1.917,0.854 0.26,0.198 10 false N1 0.063,1.854 0.99,2.094 0.927,0.24 10 false CANH*A 0.063,2.573 0.99,2.813 0.927,0.24 10 false CANL*A 2.719,1.865 3.427,2.188 0.708,0.323 10 false CANH*B 2.708,2.573 3.406,3.021 0.698,0.448 10 false CANL*B
*A for 1GD-FTV
*B for 7GR-FKS
*a Front view of wire harness connector
(to ECM)


Disconnect the N1*1 or N2*2 ECM connector.

*1: for 7GR-FKS

*2: for 1GD-FTV



b.

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

Standard Resistance:
for 7GR-FKS
Tester Connection Condition Specified Condition
N1-27 (CANH) - N1-35 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

for 1GD-FTV
Tester Connection Condition Specified Condition
N2-17 (CANH) - N2-28 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



c.

Reconnect the N1*1 or N2*2 ECM connector.

*1: for 7GR-FKS

*2: for 1GD-FTV



Result:
Proceed to
OK
NG



OK

REPLACE ECM

for 7GR-FKS: Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL

for 1GD-FTV: Click hereEngine / Hybrid System>1GD-FTV (ENGINE CONTROL)>ECM>REMOVAL


NG

27.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])
27.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])
a.

Disconnect the N127 No. 7 CAN junction connector.

C467151
0.573,1.24 0.979,1.49 0.406,0.25 4.917,0.833 4.667,0.833 4.667,0.833 3.583,1.5 true 4.917,2 4.667,2 4.667,2 3.583,1.667 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.604,1.292 1.104,1.531 0.5,0.24 10 false N127 5,0.76 5.667,1 0.667,0.24 10 false CANH*b 5,1.917 5.667,2.156 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)



b.

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

Standard Resistance:
Tester Connection Condition Specified Condition Connected to
N127-6 (CANH) - N127-17 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Central gateway ECU (network gateway ECU)



c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

28.CHECK VEHICLE TYPE

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])

28.CHECK VEHICLE TYPE
a.

Check for vehicle type.


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



A

29.CHECK FOR SHORT IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU)

B

30.CHECK VEHICLE TYPE
29.CHECK FOR SHORT IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU)
a.

Disconnect the N127 No. 7 CAN junction connector.

C467151
0.573,1.24 0.979,1.49 0.406,0.25 2.25,2.083 2.5,2.083 2.5,2.083 3.052,1.667 true 2.25,0.833 2.5,0.833 2.5,0.833 3.083,1.417 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.604,1.292 1.104,1.531 0.5,0.24 10 false N127 1.677,0.76 2.344,1 0.667,0.24 10 false CANH*b 1.698,2 2.365,2.24 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Engine Stop and Start ECU



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-3 (CANH) - N127-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Engine stop and start ECU


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

30.CHECK VEHICLE TYPE

NG

33.CHECK FOR SHORT IN CAN BUS WIRES (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)
30.CHECK VEHICLE TYPE
a.

Check for vehicle type.


Result:
Result Proceed to
for Water Cooled Type Intercooler A
except Water Cooled Type Intercooler B



A

31.CHECK FOR SHORT IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - UREA PUMP CONTROL ECU)

B

32.CHECK FOR SHORT IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)
31.CHECK FOR SHORT IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - UREA PUMP CONTROL ECU)
a.

Disconnect the N127 No. 7 CAN junction connector.

C467151
0.573,1.24 0.979,1.49 0.406,0.25 4.333,0.583 4.083,0.583 4.083,0.583 3.25,1.5 true 4.25,2.333 4,2.333 4,2.333 3.25,1.667 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.604,1.292 1.104,1.531 0.5,0.24 10 false N127 4.417,0.5 5.083,0.74 0.667,0.24 10 false CANH*b 4.333,2.24 5,2.479 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Urea Pump Control ECU



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-4 (CANH) - N127-15 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Urea pump control ECU


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

32.CHECK FOR SHORT IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)

NG

34.CHECK FOR SHORT IN CAN BUS WIRES (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)
32.CHECK FOR SHORT IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)
a.

Disconnect the N127 No. 7 CAN junction connector.

C467151
0.573,1.24 0.979,1.49 0.406,0.25 2.188,1.156 2.438,1.156 2.438,1.156 2.708,1.458 true 2.219,1.729 2.469,1.729 2.469,1.729 2.708,1.646 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.604,1.292 1.104,1.531 0.5,0.24 10 false N127 1.594,1.073 2.26,1.313 0.667,0.24 10 false CANH*b 1.677,1.646 2.344,1.885 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to ECM



b.

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

Standard Resistance
Tester Connection Condition Specified Condition Connected to
N127-1 (CANH) - N127-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω ECM


c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

REPLACE NO. 7 CAN JUNCTION CONNECTOR

NG

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

33.CHECK FOR SHORT IN CAN BUS WIRES (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414294C01
1.479,0.208 1.958,0.469 0.479,0.26 0.615,1.927 0.76,1.927 0.76,1.927 0.76,1.5 true 1.031,1.927 0.896,1.927 0.896,1.927 0.896,1.5 true 0.115,0.073 0.573,0.375 0.458,0.302 10 false *a 1.594,0.26 2.052,0.458 0.458,0.198 10 false N33 0.208,1.844 0.823,2.042 0.615,0.198 10 false CANH 1.063,1.844 1.677,2.042 0.615,0.198 10 false CANL
*a Front view of wire harness connector
(to Engine Stop and Start ECU)


Disconnect the N33 engine stop and start ECU connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N33-13 (CANH) - N33-14 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω



c.

Reconnect the N33 engine stop and start ECU connector.


Result:
Proceed to
OK
NG



OK

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (ENGINE STOP AND START ECU - NO. 7 CAN JUNCTION CONNECTOR)

34.CHECK FOR SHORT IN CAN BUS WIRES (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)
a.
C407712C02
1.458,0.281 1.958,0.542 0.5,0.26 1.708,0.823 1.875,0.823 1.875,0.823 2.104,1.552 true 2.51,0.823 2.344,0.823 2.344,0.823 2.229,1.542 true 0.104,0.063 0.417,0.26 0.313,0.198 10 false *a 1.573,0.323 1.885,0.521 0.313,0.198 10 false N37 1.292,0.74 1.813,0.938 0.521,0.198 10 false CAN- 2.563,0.74 3.094,0.948 0.531,0.208 10 false CAN+
*a Front view of wire harness connector
(to Urea Pump Control ECU)


Disconnect the N37 urea pump control ECU connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N37-27 (CAN+) - N37-26 (CAN-) Cable disconnected from negative (-) battery terminal 54 to 69 Ω



c.

Reconnect the N37 urea pump control ECU connector.


Result:
Proceed to
OK
NG



OK

REPLACE UREA PUMP CONTROL ECU

Click hereEngine / Hybrid System>1GD-FTV (EMISSION CONTROL)>UREA PUMP CONTROL ECU>REMOVAL


NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (UREA PUMP CONTROL ECU - NO. 7 CAN JUNCTION CONNECTOR)

35.CHECK FOR OPEN IN CAN BUS WIRE (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 7 CAN JUNCTION CONNECTOR)
a.
C368242C44
1.417,0.24 1.958,0.458 0.542,0.219 1.292,1.823 1.49,1.823 1.49,1.823 1.656,1.313 true 2.188,1.813 1.906,1.813 1.906,1.813 1.781,1.302 true 1.573,0.281 2.031,0.479 0.458,0.198 10 false N21 0.948,1.74 1.406,1.938 0.458,0.198 10 false CA4L 2.229,1.729 2.708,1.927 0.479,0.198 10 false CA4H 0.073,0.052 0.531,0.25 0.458,0.198 10 false *a
*a Front view of wire harness connector
(to Central Gateway ECU [Network Gateway ECU])


Disconnect the N21 central gateway ECU (network gateway ECU) connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N21-18 (CA4H) - N21-17 (CA4L) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



c.

Reconnect the N21 central gateway ECU (network gateway ECU) connector.


Result:
Proceed to
OK
NG



OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

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


NG

36.CHECK FOR OPEN IN CAN BUS WIRE (ECM - NO. 7 CAN JUNCTION CONNECTOR)
36.CHECK FOR OPEN IN CAN BUS WIRE (ECM - NO. 7 CAN JUNCTION CONNECTOR)
a.
C414293C01
1.521,0.333 1.927,0.563 0.406,0.229 1.521,0.625 1.927,0.854 0.406,0.229 0.656,2.656 0.76,2.656 0.76,2.656 0.99,2.375 true 0.656,1.927 0.771,1.927 0.771,1.927 0.99,2.146 true 2.417,2.375 2.552,2.656 2.552,2.656 2.667,2.656 true 2.406,2.146 2.583,1.938 2.583,1.938 2.698,1.938 true 1.979,0.375 2.292,0.625 0.313,0.25 10 false *A 1.979,0.656 2.323,1.01 0.344,0.354 10 false *B 0.125,0.083 0.406,0.354 0.281,0.271 10 false *a 1.656,0.365 1.917,0.563 0.26,0.198 10 false N2 1.656,0.656 1.917,0.854 0.26,0.198 10 false N1 0.063,1.854 0.99,2.094 0.927,0.24 10 false CANH*A 0.063,2.573 0.99,2.813 0.927,0.24 10 false CANL*A 2.719,1.865 3.427,2.188 0.708,0.323 10 false CANH*B 2.708,2.573 3.406,3.021 0.698,0.448 10 false CANL*B
*A for 1GD-FTV
*B for 7GR-FKS
*a Front view of wire harness connector
(to ECM)


Disconnect the N1*1 or N2*2 ECM connector.

*1: for 7GR-FKS

*2: for 1GD-FTV



b.

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

Standard Resistance:
for 7GR-FKS
Tester Connection Condition Specified Condition
N1-27 (CANH) - N1-35 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

for 1GD-FTV
Tester Connection Condition Specified Condition
N2-17 (CANH) - N2-28 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



c.

Reconnect the N1*1 or N2*2 ECM connector.

*1: for 7GR-FKS

*2: for 1GD-FTV



Result:
Proceed to
OK
NG



OK

REPLACE ECM

for 7GR-FKS: Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL

for 1GD-FTV: Click hereEngine / Hybrid System>1GD-FTV (ENGINE CONTROL)>ECM>REMOVAL


NG

37.CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])
37.CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])
a.

Disconnect the N127 No. 7 CAN junction connector.

C467151
0.573,1.24 0.979,1.49 0.406,0.25 4.917,0.833 4.667,0.833 4.667,0.833 3.583,1.5 true 4.917,2 4.667,2 4.667,2 3.583,1.667 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.604,1.292 1.104,1.531 0.5,0.24 10 false N127 5,0.76 5.667,1 0.667,0.24 10 false CANH*b 5,1.917 5.667,2.156 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to Central Gateway ECU (Network Gateway ECU)



b.

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

Standard Resistance:
Tester Connection Condition Specified Condition Connected to
N127-6 (CANH) - N127-17 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Central gateway ECU (network gateway ECU)



c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

38.CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - ECM)

NG

REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU])

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

Disconnect the N127 No. 7 CAN junction connector.

C467151
0.573,1.24 0.979,1.49 0.406,0.25 2.188,1.156 2.438,1.156 2.438,1.156 2.708,1.458 true 2.219,1.729 2.469,1.729 2.469,1.729 2.708,1.646 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.604,1.292 1.104,1.531 0.5,0.24 10 false N127 1.594,1.073 2.26,1.313 0.667,0.24 10 false CANH*b 1.677,1.646 2.344,1.885 0.667,0.24 10 false CANL*b
*a Front view of wire harness connector
(to No. 7 CAN Junction Connector) 		*b to ECM



b.

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

Standard Resistance:
Tester Connection Condition Specified Condition Connected to
N127-1 (CANH) - N127-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω ECM



c.

Reconnect the N127 No. 7 CAN junction connector.


Result:
Proceed to
OK
NG



OK

REPLACE NO. 7 CAN JUNCTION CONNECTOR

NG

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