B1473

DTC B1473 A/C INVERTER START-UP SIGNAL SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION

Detection Item:

The inverter activation signal is sent to the A/C inverter assembly from the hybrid control ECU. Compressor control is stopped and the DTC is output if there is an open or short in the signal circuit.

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

Wiring Diagram:

Step 1 - 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.