B1476

DTC B1476 A/C INVERTER LOAD SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION

Detection Item:

The A/C inverter assembly stops compressor control and outputs the DTC if the rotation load is too great or too small while controlling motor rotation in the A/C inverter assembly.

HINT: Possible reasons could be as follows: Load is low when the refrigerant gas leaks, or load is too great when refrigerant gas is excessively charged, insufficient cooling performance due to condenser fan circuit trouble, or the compressor locked up.

Step 1:

Step 2:

INSPECTION PROCEDURE

NOTE: The A/C inverter is integrated with the inverter assembly. It is necessary to replace the PCU box assembly the A/C inverter (inverter assembly) needs to be replaced because the A/C inverter (inverter assembly) cannot be replaced alone.