Air Conditioning System (for Automatic Air Conditioning System)

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): B1499/99: Multiplex Communication Circuit
B1499/99 - Multiplex Communication Circuit

DESCRIPTION

The air conditioning amplifier communicates with the ECM and combination meter through the CAN communication system.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Using the Techstream, check if the CAN communication system is functioning normally.





C -- GO TO CAN COMMUNICATION SYSTEM Diagnosis System

B -- GO TO CAN COMMUNICATION SYSTEM Diagnosis System

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