B1279

MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1279: Rain Sensor Communication Stop
B1279 - Rain Sensor Communication Stop

DESCRIPTION

This DTC is detected when communication between the rain sensor and overhead J/B stops for more than 10 seconds.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK RESISTANCE OF COMMUNICATION LINE





(a) Disconnect the W4 sensor connector.

(b) Disconnect the W8 junction block connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

OK -- REPLACE RAIN SENSOR