B1278

DTC B1278 Combination Switch ECU Communication Stop

DESCRIPTION

DTC Detection Condition:

This DTC is detected when communication between the combination switch (windshield wiper switch) and network gateway ECU stops for more than 10 seconds.

HINT: When "+B of GND short malfunction of communication bus" DTCs (B1214 and B1215) are detected at the same time as "communication stop" DTC B1278, repair the "+B or GND short malfunction of communication bus" DTCs first.

Wiring Diagram:

Step 1:

Step 1(continued)-2:

Step 3:

INSPECTION PROCEDURE