AIR CONDITIONING
06 - Symptom Troubleshooting
SG06-5
TC070-15-01H
POSSIBLE CAUSE
• A/C relay malfunction (Step 2)
• A/C compressor malfunction (Step 3)
• Evaporator temperature sensor malfunction (Step 4)
STEP INSPECTION ACTION
1 INSPECT AIR BLOW OUT
• Does air blow out?
Yes Go to the next step.
No Go to Step 1 of troubleshooting indexes No.1 and 2.
2 INSPECT FUSE
• Are the A/C relay power supply fuses normal?
Yes Go to the next step.
No Replace the fuse, then go to Step 5. If fuse burns out immediately, go to the next
step.
3 INSPECT A/C COMPRESSOR OPERATION
• Start the engine.
• Turn the A/C switch and fan switch on.
• Does the A/C compressor operate?
Yes Go to Step 1 of troubleshooting index No.7.
No Go to the next step.
4 INSPECT EVAPORATOR TEMPERATURE SENSOR
• Inspect the evaporator temperature sensor.
• Is it normal?
Yes Go to the next step.
No Replace the evaporator temperature sensor, then go to the next step.
5 CONFIRM THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR
• Does cool air blow out? (Are the results of refrigerant system performance test
normal?)
Yes Troubleshooting completed. Explain repairs to customer.
No Recheck malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
Summary of Contents for TC070-15-01H
Page 12: ...AIR CONDITIONING SG01 Basic System SG01 2 TC070 15 01H A C Components Name the components...
Page 23: ...AIR CONDITIONING SG01 Basic System SG01 13 TC070 15 01H Review Exercise 1 Name the components...
Page 55: ...AIR CONDITIONING SG02 Control System Manual Air Conditioning SG02 17 TC070 15 01H Cont d...
