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INSUFFICIENT COOLING HAC-83 < SYMPTOM DIAGNOSIS > [AUTOMATIC AIR CONDITIONER] C D E F G H J K L M A B HAC N O P INSUFFICIENT COOLING Component Function Check INFOID:0000000006164725 SYMPTOM: Insufficient cooling INSPECTION FLOW 1. CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE 1. Press the AUTO switch. 2. Turn temperature control dial (driver) counterclockwise until 18 °C (60°F) is displayed. 3. Check for cold air at discharge air outlets. YES >> GO TO 3. NO >> GO TO 2. 2. CHECK FOR ANY SYMPTOMS Perform a complete operational check for any symptoms. Refer to Does another symptom exist? YES >> Refer to HAC-82, "Symptom Matrix Chart" . NO >> System OK. 3. CHECK FOR SERVICE BULLETINS Check for any service bulletins. >> GO TO 4. 4. PERFORM SELF-DIAGNOSIS Perform self-diagnosis Refer to HAC-21, "Front Air Control Self-Diagnosis" . Is the inspection result normal? YES >> GO TO 5. NO >> Refer to HAC-21, "Front Air Control Self-Diagnosis Code Chart" 5. CHECK DRIVE BELTS Check compressor belt tension. Refer to . Is the inspection result normal? YES >> GO TO 6. NO >> Adjust or replace compressor belt. Refer to EM-13, "Removal and Installation" 6. CHECK AIR MIX DOOR OPERATION Check and verify air mix door mechanism for smooth operation. Refer to HAC-28, "Air Mix Door Motor (Driver) . Does air mix door operate correctly? YES >> GO TO 7. NO >> Check air mix door motor circuit. Refer to HAC-28, "Air Mix Door Motor (Driver) Diagnosis Proce- or HAC-32, "Air Mix Door Motor (Passenger) Diagnosis Procedure" . 7. CHECK COOLING FAN MOTOR OPERATION Check and verify cooling fan motor for smooth operation. Refer to EC-439, "Component Inspection" . Does cooling fan motor operate correctly? YES >> GO TO 8. NO >> Check cooling fan motor. Refer to . 8. CHECK WATER VALVE OPERATION Check and verify water valve for smooth operation. Refer to . Does water valve operate correctly? YES >> GO TO 9. |