B1210

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

DESCRIPTION

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





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT
If DTC B1214 or B1215 (+B or GND short malfunction of communication bus) is stored at the same time as DTC B1210, perform troubleshooting for DTC B1214 or B1215 first.

PROCEDURE

1. 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:





Text in Illustration





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

2. CHECK HARNESS AND CONNECTOR (COMMUNICATION LINE)

(a) Disconnect the J26 and 2F connectors.





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

Standard Resistance:





Text in Illustration





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

3. REPLACE POWER SOURCE CONTROL ECU

(a) Replace the power source control ECU Removal.

NEXT -- Continue to next step.

4. CHECK DTC OUTPUT

(a) Clear the DTC Multiplex Communication System.

(b) Recheck for DTCs.

OK:

DTC B1210 is not output.

NG -- REPLACE GATEWAY ECU Removal

OK -- END (POWER SOURCE CONTROL ECU WAS DEFECTIVE)