NO.8 NO COOL AIR

#
NO.8 NO COOL AIR

B3E070301038W10

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.