ECM Communication Stop Mode

CAN COMMUNICATION SYSTEM: ECM Communication Stop Mode

ECM Communication Stop Mode

DESCRIPTION





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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




(a) Disconnect the E7 or E14 ECM connector.
(b) Measure the resistance according to the value in the table below.
Standard Resistance:





- *1: for 2TR-FE
- *2: for 1GR-FE

NG -- REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (CANH, CANL)
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (IGSW, E1)
(a) Reconnect the ECM connector.




(b) Disconnect the E4 and E8 or E11 and E14 ECM connectors.
(c) Measure the resistance according to the value in the table below.
Standard Resistance:





- *1: for 2TR-FE
- *2: for 1GR-FE
(d) Measure the voltage according to the value in the table below.
Standard Voltage:






Result





C -- REPLACE ECM
B -- REPLACE ECM
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR