B1210

MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1210: Power ECU Stop
B1210 - Power ECU Stop

DESCRIPTION

This DTC is detected when communication between the power source control ECU and gateway ECU stops for more than 10 seconds.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (POWER SOURCE CONTROL ECU - BATTERY AND BODY GROUND)

(a) Disconnect the D44 ECU connector.

(b) Measure the voltage according to the value(s) in the table below.

Voltage:





(c) Measure the resistance according to the value(s) in the table below.

Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK RESISTANCE OF COMMUNICATION LINE

(a) Disconnect the D44, D37 and D39 ECU connectors.

(b) Measure the resistance according to the value(s) in the table below.

Resistance:





Result:





C -- REPAIR OR REPLACE HARNESS OR CONNECTOR

B -- REPLACE POWER SOURCE CONTROL ECU AND REPAIR OR REPLACE HARNESS OR CONNECTOR

A -- REPLACE POWER SOURCE CONTROL ECU