ECM Communication Stop Mode

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: ECM Communication Stop Mode

ECM Communication Stop Mode

DESCRIPTION





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CAN BUS WIRE (ECM MAIN BUS LINE DISCONNECTION)





(a) Turn the ignition switch off.
(b) Disconnect the ECM connector (A55).
(c) Measure the resistance according to the value(s) in the table below.
Resistance:






NG -- REPAIR OR REPLACE ECM MAIN BUS LINE OR CONNECTOR (CAN-H, CAN-L)
OK -- Continue to next step.

2. CHECK ENGINE ECU POWER SOURCE CIRCUIT
(a) Check the ECM power source circuit ECM Power Source Circuit.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE ECM