Component Tests and General Diagnostics

Inspection Flow:

Check For Magnet Clutch:

SYMPTOM: Magnet clutch does not engage when A/C switch and fan switch are ON. Magnet clutch does not engage in DEF mode.

Part 1:

Part 2:

Part 3:

Part 4:

DIAGNOSTIC PROCEDURE

SYMPTOM: Magnet clutch does not engage when A/C switch and fan switch are ON.

ELECTRICAL COMPONENT INSPECTION







Thermo control amp.
1. Run engine, and operate A/C system.
2. Connect the voltmeter from harness side.
3. Check thermo control amp. operation shown in the table.







Thermal protector
If NG, replace thermal protector.




Triple-pressure switch




Air conditioner relay
Check circuit continuity between terminals by supplying 12 volts to coil side terminals of air conditioner relay.