Air Conditioning System

DTC 77 A/C INVERTER LOW VOLTAGE POWER RESOURCE SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION

Detection Item:

The A/C inverter assembly monitors the controlling power voltage in the self circuit. It stops 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.

Step 1:

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.