NO.8 NO COOL AIR
id070300801100
|
8
|
No cool air
|
|
DESCRIPTION
|
• Magnetic clutch does not operate.
|
|
POSSIBLE CAUSE
|
• A/C relay malfunction (Step 2)
• A/C compressor malfunction (Step 3)
• Evaporator temperature sensor malfunction (Step 4)
|
Diagnostic procedure
|
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.
|
||