B1210

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

DESCRIPTION

* This DTC is detected if communication between the power source control ECU stops for more than 10 seconds.





WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
If "+B of GND short malfunction of communication bus" DTCs (B1214 and B1215) are detected at the same time as "communication stop" DTC B1210, repair the "+B or GND short malfunction of communication bus" DTCs first B1214.

PROCEDURE

1. INSPECT FUSE (AM2)

(a) Remove the AM2 fuse from the main body ECU RH (cowl side junction block RH).

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

Standard Resistance:





NG -- REPLACE FUSE (AM2)
OK -- Continue to next step.

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

(a) Disconnect the J55 connector.





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

Standard Voltage:





Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CONTROL ECU - BATTERY AND BODY GROUND)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (COMMUNICATION LINE)

(a) Disconnect the J55, J26 and 2F connectors.





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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER SOURCE CONTROL ECU