Air Conditioning System (for Manual Air Conditioning System)

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

DTC B1499/99 - Multiplex Communication Circuit

DESCRIPTION

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






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INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC OUTPUT
(a) Clear the DTCs.
(b) Check for DTCs.
OK:
DTC B1499/99 is not output.
NG -- GO TO CAN COMMUNICATION SYSTEM
OK -- USE SIMULATION METHOD TO CHECK