RM3660EC _57 Power Source / Network _080743 NETWORKING _0392424 CAN COMMUNICATION SYSTEM(for HV Model) J

NETWORKING  CAN COMMUNICATION SYSTEM(for HV Model)  Air Conditioning Amplifier Communication Stop Mode  


DESCRIPTION

Detection Item Symptom Trouble Area
Air Conditioning Amplifier Communication Stop Mode Communication stop for "Air Conditioning Amplifier" is indicated on the "Communication Bus Check" screen of the GTS.
Click here(Click here)
·

Air conditioning amplifier assembly branch line or connector

·

Power source circuit of air conditioning amplifier assembly

·

Air conditioning amplifier assembly ground circuit

·

Air conditioning amplifier assembly



WIRING DIAGRAM

for 8ZR-FXE
C506899E02
0.146,1.302 0.604,1.5 0.458,0.198 10 false I224 1.75,2.781 5.365,3.115 3.615,0.333 10 false from Auxiliary Battery 1.708,3.49 5.323,3.823 3.615,0.333 10 false from IGP-MAIN Relay 1.75,0.208 1.906,0.406 0.156,0.198 10 false 2 1.729,0.792 2.688,1.073 0.958,0.281 10 false 13 5.344,0.125 5.5,0.323 0.156,0.198 10 false 2 5.333,0.688 5.49,0.885 0.156,0.198 10 false 1 5.656,0.365 6.271,0.563 0.615,0.198 10 false CANH 5.656,0.948 6.271,1.146 0.615,0.198 10 false CANL 3.927,2.635 5.615,2.833 1.688,0.198 10 false ECU-B NO. 2 3.885,3.323 5.573,3.521 1.688,0.198 10 false ECU-IGP NO. 3 5.313,2.583 5.469,2.781 0.156,0.198 10 false 3 5.333,3.26 5.49,3.458 0.156,0.198 10 false 4 5.313,3.885 5.594,4.115 0.281,0.229 10 false 1 5.667,2.802 5.823,3 0.156,0.198 10 false B 5.656,3.469 6.271,3.667 0.615,0.198 10 false IG+ 5.646,4.104 6.26,4.302 0.615,0.198 10 false GND 5.385,4.771 6.958,5.323 1.573,0.552 10 false Air Conditioning Amplifier Assembly 5.302,0.354 5.76,0.552 0.458,0.198 10 false I49 0.729,4.292 5.01,4.49 4.281,0.198 10 false *1: for GTMC Made 0.729,4.646 5.01,4.844 4.281,0.198 10 false *2: for TFTM Made 5.302,0.938 5.76,1.135 0.458,0.198 10 false I49 5.25,2.802 5.708,3 0.458,0.198 10 false I206 5.25,3.49 5.708,3.688 0.458,0.198 10 false I206 5.26,4.115 5.719,4.313 0.458,0.198 10 false I206 0.5,1.302 4.781,1.5 4.281,0.198 10 false No. 12 CAN Junction Connector*1 0.146,1.563 0.604,1.76 0.458,0.198 10 false I214 0.5,1.563 4.781,1.76 4.281,0.198 10 false No. 15 CAN Junction Connector*2

for M20F-FXS or M20G-FXS
C416186E03
1.75,2.458 3.208,2.771 1.458,0.313 10 false from Auxiliary Battery 3.927,2.333 4.854,2.594 0.927,0.26 10 false ECU-B NO. 2 0.188,1.938 0.635,2.26 0.448,0.323 10 false I236 0.531,1.938 3.104,2.281 2.573,0.344 10 false No. 12 CAN Junction Connector*1 1.75,0.844 2.125,1.135 0.375,0.292 10 false 2 1.719,1.458 2.094,1.75 0.375,0.292 10 false 13*2 5.438,0.865 5.813,1.156 0.375,0.292 10 false 2 5.427,1.458 5.802,1.75 0.375,0.292 10 false 1 5.448,2.333 5.823,2.625 0.375,0.292 10 false 5 5.438,3.167 5.813,3.458 0.375,0.292 10 false 6 5.385,3.979 5.76,4.271 0.375,0.292 10 false 17 5.635,0.979 6.135,1.26 0.5,0.281 10 false CANH 5.198,4.75 5.573,5.042 0.375,0.292 10 false I49 5.74,2.49 6.115,2.781 0.375,0.292 10 false B 5.656,3.302 6.031,3.594 0.375,0.292 10 false IG+ 5.646,4.125 6.021,4.417 0.375,0.292 10 false GND 1.729,3.281 3.188,3.594 1.458,0.313 10 false from IGP-MAIN Relay 3.844,3.156 4.938,3.417 1.094,0.26 10 false ECU-IGP NO. 3 5.646,1.573 6.146,1.854 0.5,0.281 10 false CANL 5.448,4.75 7.021,5.229 1.573,0.479 10 false Air Conditioning Amplifier Assembly 1.719,1.292 2.094,1.583 0.375,0.292 10 false 6*1 0.531,2.219 3.104,2.563 2.573,0.344 10 false No. 42 Junction Connector*2 0.188,2.219 0.635,2.542 0.448,0.323 10 false I232 0.875,4.333 2.333,4.646 1.458,0.313 10 false *1: for M20F-FXS 0.875,4.771 2.333,5.083 1.458,0.313 10 false *2: for M20G-FXS

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 HV 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 (-) auxiliary 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 (-) auxiliary battery terminal.

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

·

When disconnecting and reconnecting the auxiliary battery.

HINT:

When disconnecting and reconnecting the auxiliary 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 (for HV Model)>DIAGNOSIS SYSTEM

·

Inspect the fuses for circuits related to this system before performing the following procedure.



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 VEHICLE TYPE
a.

Check vehicle type.


Result:
Result Proceed to
for 8ZR-FXE A
for M20F-FXS or M20G-FXS B



A

2.CHECK FOR OPEN IN CAN BUS LINES (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH LINE)

B

4.CHECK FOR OPEN IN CAN BUS LINES (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH LINE)
2.CHECK FOR OPEN IN CAN BUS LINES (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH LINE)
a.

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


b.

Disconnect the I49 air conditioning amplifier assembly connector.


c.
C416180C02
1.5,0.208 1.917,0.479 0.417,0.271 1.031,1.552 1.031,0.802 1.031,0.802 1.198,0.802 true 0.833,1.552 0.833,0.802 0.833,0.802 0.667,0.802 true 0.083,0.083 0.396,0.281 0.313,0.198 10 false *a 1.615,0.271 2.083,0.563 0.469,0.292 10 false I49 1.26,0.719 1.927,0.927 0.667,0.208 10 false CANH 0.281,0.729 0.948,0.938 0.667,0.208 10 false CANL
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
I49-2 (CANH) - I49-1 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω



Result:
Result
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY)

3.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.

Disconnect the I206 air conditioning amplifier assembly connector.


b.
C506224C01
0.229,0.948 0.688,1.24 0.458,0.292 1.271,0.24 1.438,0.24 1.438,0.24 1.438,1.073 true 2.146,0.323 1.979,0.323 1.979,0.323 1.979,1.073 true 1.958,0.156 1.792,0.156 1.792,0.156 1.792,1.073 true 0.333,1.01 0.948,1.208 0.615,0.198 10 false I206 2.042,0.094 2.656,0.292 0.615,0.198 10 false B 2.229,0.24 2.844,0.438 0.615,0.198 10 false IG+ 0.948,0.156 1.563,0.354 0.615,0.198 10 false GND
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
I206-1 (GND) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω



c.

Reconnect the cable to the negative (-) auxiliary battery terminal.


d.

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

Standard Voltage:
Tester Connection Condition Specified Condition
I206-3 (B) - Body ground Ignition switch off 11 to 14 V
I206-4 (IG+) - Body ground Ignition switch ON 11 to 14 V



Result:
Result
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

4.CHECK FOR OPEN IN CAN BUS LINES (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH LINE)
a.

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


b.

Disconnect the I49 air conditioning amplifier assembly connector.


c.
C416180C02
1.5,0.208 1.917,0.479 0.417,0.271 1.031,1.552 1.031,0.802 1.031,0.802 1.198,0.802 true 0.833,1.552 0.833,0.802 0.833,0.802 0.667,0.802 true 0.083,0.083 0.396,0.281 0.313,0.198 10 false *a 1.615,0.271 2.083,0.563 0.469,0.292 10 false I49 1.26,0.719 1.927,0.927 0.667,0.208 10 false CANH 0.281,0.729 0.948,0.938 0.667,0.208 10 false CANL
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
I49-2 (CANH) - I49-1 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω



Result:
Result
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY)

5.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C416180C03
1.5,0.208 1.917,0.479 0.417,0.271 2.656,1.865 2.656,2.781 2.656,2.781 2.823,2.781 true 0.771,1.875 0.771,2.792 0.771,2.792 0.604,2.792 true 0.969,1.875 0.969,2.792 0.969,2.792 1.135,2.792 true 0.083,0.083 0.396,0.281 0.313,0.198 10 false *a 1.625,0.271 2.094,0.563 0.469,0.292 10 false I49 1.25,2.708 1.917,2.917 0.667,0.208 10 false IG+ 2.896,2.698 3.365,2.927 0.469,0.229 10 false GND 0.458,2.719 0.927,2.948 0.469,0.229 10 false B
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
I49-17 (GND) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω



b.

Reconnect the cable to the negative (-) auxiliary battery terminal.


c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
I49-5 (B) - Body ground Power switch off 11 to 14 V
I49-6 (IG+) - Body ground Power switch on (IG) 11 to 14 V



Result:
Result
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)