B1499

AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1499/99: Multiplex Communication Circuit
B1499/99 - Multiplex Communication Circuit

DESCRIPTION

The air conditioning amplifier communicates data with the ECM and No. 1 meter ECU through the CAN communication system.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC

(a) Clear the DTC DTC Check / Clear.

(b) Check for the DTC DTC Check / Clear.

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting

A -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting