B1472

AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1472/72: A/C Inverter High Voltage Output System Malfunction
B1472/72 - A/C Inverter High Voltage Output System Malfunction

DESCRIPTION

The inverter in the compressor with motor assembly outputs high-voltage to operate the motor. If there is an open or short in the output circuit, the ECU will stop compressor operation and output the DTC. The output DTC will be memorized as a past DTC. The compressor operation remains stopped until both the past and present DTCs are cleared.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC (CAN COMMUNICATION SYSTEM)

(a) Check if DTCs for the CAN communication system are output using the Techstream Diagnosis System.

Result





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

A -- REPLACE COMPRESSOR WITH MOTOR ASSEMBLY Removal