B1473

DTC B1473/73 A/C Inverter Start-up Signal System Malfunction

DESCRIPTION

DTC Detection Condition:

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

NOTE: This circuit uses both CAN and multiplex communication. Before performing the inspection, check that the CAN and multiplex communication systems are functioning normally.

Wiring Diagram:

Step 1:

Step 1 (Continued)-2:

Step 3-5:

INSPECTION PROCEDURE