B1213

NETWORKING: MULTIPLEX COMMUNICATION SYSTEM: B1213: Tilt and Telescopic ECU Communication Stop
B1213 - Tilt and Telescopic ECU Communication Stop

DESCRIPTION

* This DTC is detected if communication between the multiplex tilt and telescopic ECU and the 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 B1213, repair the "+B or GND short malfunction of communication bus" DTCs first B1214.

PROCEDURE

1. INSPECT FUSE (TI & TE, MPX-B)

(a) Remove the TI & TE 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 (TI & TE, MPX-B)
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BATTERY AND BODY GROUND)

(a) Disconnect the J28 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 (MULTIPLEX TILT AND TELESCOPIC ECU - BATTERY AND BODY GROUND)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (COMMUNICATION LINE)

(a) Disconnect the J28, RA and P33 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 MULTIPLEX TILT AND TELESCOPIC ECU