B1262

DTC B1262 A/C ECU Communication Stop

DESCRIPTION

DTC Detection Condition:

This DTC is detected when communication between the air conditioning amplifier (A/C ECU) and multiplex network gateway ECU stops for more than 10 seconds.

Wiring Diagram:

Step 1:

Step 1 (Continued)-3:

Step 3 (Continued):

INSPECTION PROCEDURE

HINT: When "+B of GND short malfunction of communication bus" DTCs (B1214, B1215, etc.) are detected at the same time as "communication stop" DTC B1262, repair the "+B or GND short malfunction of communication bus" DTCs first.