B1474

AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1474: A/C Inverter Malfunction

DTC B1474 - A/C Inverter Malfunction

DESCRIPTION





INSPECTION PROCEDURE
CAUTION:
- Wear electrically insulated gloves and pull out the service plug grip before inspection as procedures may require disconnecting high-voltage connectors. Be sure to carry the removed service plug grip because other workers may install it by mistake.
- Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.

PROCEDURE

1. CHECK MULTIPLEX COMMUNICATION SYSTEM
(a) Using the Techstream, check if the multiplex communication system is functioning normally.
Result:






B -- GO TO MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.

2. CHECK CAN COMMUNICATION SYSTEM
(a) Using the Techstream, check if the CAN communication system is functioning normally.
Result:






B -- GO TO CAN COMMUNICATION SYSTEM
A -- REPLACE ELECTRIC INVERTER COMPRESSOR