ECM Communication Stop Mode [10/2014 - ]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (ECM MAIN LINE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the A18 ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A18-13 (CANH) - A18-26 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to ECM)
Result:
NG
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (ECM MAIN LINE)
Result:
OK
See step 2
- CHECK ECM POWER SOURCE CIRCUIT
- Check the ECM power source circuit (Refer to ECM Power Source Circuit [10/2014 - 10/2015] or ECM Power Source Circuit [10/2015 - ] ).
Result:
OK
REPLACE ECM
(Refer to REMOVAL [10/2014 - ] )
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)