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MAGNET CLUTCH HAC-85 < DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER] C D E F G H J K L M A B HAC N O P Is the inspection result normal? YES >> GO TO 8. NO >> GO TO 6. 6. CHECK REFRIGERANT PRESSURE SENSOR WITH CONSULT-III 1. Start the engine. 2. Check voltage of refrigerant pressure sensor in “Data monitor”. Refer to (VQ35HR) or HAC-121, "VK50VE : Reference Value" (VK50VE). WITHOUT CONSULT-III 1. Start the engine. 2. Check voltage between ECM harness connector and ground. VQ35HR VK50VE Is the inspection result normal? YES >> • WITH CONSULT-III: GO TO 7. • WITHOUT CONSULT-III: Repair harness or connector. NO >> Refer to EC-1127, "Diagnosis Procedure" (VK50VE). 7. CHECK ECM INPUT SIGNAL-2 Check blower fan motor switch signal in “Data monitor”. Refer to HAC-62, "WITHOUT ACCS : CONSULT-III HAC-67, "WITH ACCS : CONSULT-III Function" (WITH ACCS). Is the inspection result normal? YES >> GO TO 8. NO >> Repair harness or connector. 8. CHECK CAN COMMUNICATION Check CAN communication. Refer to LAN-20, "Trouble Diagnosis Flow Chart" . • ECM – IPDM E/R Is the inspection result normal? YES >> Replace ECM. NO >> Repair or replace malfunctioning part(s). (+) ( − ) Condition Voltage ECM — connector Terminal M107 105 Ground A/C switch: ON (Blower motor operates.) Approx. 1.0 - 4.0 V (+) ( − ) Condition Voltage ECM — connector Terminal F111 90 Ground A/C switch: ON (Blower motor operates.) Approx. 1.0 - 4.0 V FAN SWITCH ON : HEATER FAN SW On FAN SWITCH OFF : HEATER FAN SW Off |