With Automatic Air Conditioner

SYMPTOM: Magnet clutch does not engage.




INSPECTION FLOW




DIAGNOSTIC PROCEDURE

SYMPTOM: Magnet clutch does not engage when AUTO switch is ON.




1. Check Power Supply For Compressor




2. Check Circuit Continuity Between A/C Relay Harness Terminal No.3 And Compressor Harness Terminal No.1




3. Check Power Supply For A/C Relay




4. Check A/C Relay After Disconnecting It




5. Check Coil Side Circuit Of A/C Relay




6. Check Voltage For ECM




7. Check Circuit Continuity Between ECM And Triple-Pressure Switch




8. Check Triple-pressure Switch




9. Check Circuit Continuity Between Triple-Pressure Switch And Thermo Control AMP.




10. Check Power Supply For Thermo Control AMP.




11. Check Power Supply For Thermo Control AMP.




12. Check Thermo Control AMP. Operation




13. Check Circuit Continuity Between Thermo Control AMP. And Auto AMP.