B1477

AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1477/77: A/C Inverter Low Voltage Power Resource System Malfunction

DTC B1477/77 - A/C Inverter Low Voltage Power Resource System Malfunction

DESCRIPTION

The compressor assembly monitors the controlling power voltage in the circuit. It stops the compressor circuit and outputs the DTC when the monitored voltage is outside the specified range.
The output DTC is memorized as previous trouble. The compressor control may not resume unless the power switch is turned OFF. When a DTC is output even once, replace the compressor assembly.
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.
NOTICE:
This circuit uses both CAN and multiplex communication. Before performing the inspection, check that the CAN and multiplex communication systems are functioning normally.





INSPECTION PROCEDURE

PROCEDURE

1. REPLACE COMPRESSOR ASSEMBLY
NEXT -- END