B1209

NETWORKING: MULTIPLEX COMMUNICATION SYSTEM: B1209: Driver Side Outer Mirror
B1209 - Driver Side Outer Mirror

DESCRIPTION

* This DTC is stored if communication between the outer mirror control ECU assembly (for driver side) 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 B1209, perform troubleshooting for DTC B1214 or B1215 first.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY - BATTERY AND BODY GROUND)

(a) Disconnect the M10 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 J55 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 OUTER MIRROR CONTROL ECU ASSEMBLY (FOR DRIVER SIDE)

(a) Replace the outer mirror control ECU assembly (for driver side) Removal.

NEXT -- Continue to next step.

4. CHECK DTC OUTPUT

(a) Clear the DTC Multiplex Communication System.

(b) Recheck for DTCs.

OK:

DTC B1209 is not output.

NG -- REPLACE GATEWAY ECU Removal

OK -- END (OUTER MIRROR CONTROL ECU ASSEMBLY WAS DEFECTIVE)