ECM Communication Stop Mode [12/2022 - ]: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK VEHICLE TYPE
Result:
B
See step 4
Result:
A
See step 2
- CHECK FOR OPEN IN CAN BUS LINES (ECM MAIN LINE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the A92 ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A92-7 (CFDH) - A92-8 (CFDL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (ECM)
Result:
OK
See step 3
- CHECK ECM POWER SOURCE CIRCUIT
- Check the ECM power source circuit.
Refer to ECM Power Source Circuit [12/2022 - ]
Result
Proceed to OK NG
Result:
OK
REPLACE ECM
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Check the ECM power source circuit.
- CHECK FOR OPEN IN CAN BUS LINES (ECM MAIN LINE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the A91 ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A91-9 (CFDH) - A91-10 (CFDL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (ECM)
Result:
OK
See step 5
- CHECK ECM POWER SOURCE CIRCUIT
- Check the ECM power source circuit.
Refer to ECM Power Source Circuit [12/2022 - ]
Result
Proceed to OK NG
Result:
OK
REPLACE ECM
Refer to REMOVAL [12/2022 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Check the ECM power source circuit.