With Manual Air Conditioner

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




INSPECTION FLOW

DIAGNOSTIC PROCEDURE




1. Check Power Supply For Compressor




2. Check Magnet Clutch Coil




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




4. Check Power Supply For A/C Relay




5. Check A/C Relay After Disconnecting It




6. Check Coil Side Circuit Of A/C Relay




7. Check Circuit Continuity Between A/C Relay Harness Terminal No.2 And ECM Harness Terminal No.15




8. Check Voltage For ECM




9. Check Circuit Continuity Between ECM Harness Terminal No.21 And Triple-pressure Switch Harness Terminal No.1




10. Check Triple-Pressure Switch




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




12. Check Power Supply For Thermo Control AMP.




13. Check Power Supply For Thermo Control AMP.




14. Check Thermo Control AMP. Operation




15. Check Circuit Continuity Between Thermo Control AMP. And Push Control Unit




16. Check Fan Switch




17. Check Circuit Continuity Between Fan Switch And Push Control Unit