B1208

NETWORKING: MULTIPLEX COMMUNICATION SYSTEM: B1208: Passenger Side Outer Mirror ECU
B1208 - Passenger Side Outer Mirror ECU

DESCRIPTION

* This DTC is detected if communication between the outer mirror control ECU RH and gateway 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 B1208, repair the "+B or GND short malfunction of communication bus" DTCs first B1214.

PROCEDURE

1. INSPECT FUSE (FR DOOR RH, MPX-B)

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

(b) Remove the MPX-B fuse from the engine room relay block No. 1.

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

Standard Resistance:





NG -- REPLACE FUSE
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU RH - BATTERY AND BODY GROUND)

(a) Disconnect the L10 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 (OUTER MIRROR CONTROL ECU RH - BATTERY AND BODY GROUND)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (COMMUNICATION LINE)

(a) Disconnect the L10, P33 and RJ 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 OUTER MIRROR CONTROL ECU RH Removal