Transmission Control ECU Communication Stop Mode [10/2018 - 07/2022]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (TCM BRANCH LINE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the TCM connector.
*a Front view of wire harness connector
(to TCM) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C36-15 (CANH) - C36-16 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (TCM)
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Disconnect the TCM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C36-2 (E1) -Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω *a Front view of wire harness connector
(to TCM) - Reconnect the cable to the negative (-) auxiliary battery terminal.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition C36-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V C36-41 (IGSW) - Body ground Engine switch on (IG) 11 to 14 V Result
Proceed to OK NG
Result:
OK
REPLACE TCM. Refer to REMOVAL [10/2018 - 07/2022]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)