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Rear Booster Fan Rear Control Switch on Indicator Inoperative - ATC

Test 1 - 3:






SYMPTOM
REAR BOOSTER FAN REAR CONTROL SWITCH ON INDICATOR INOPERATIVE - ATC

POSSIBLE CAUSES
- Rear booster fan rear control switch
- Rear fan on indicator driver circuit shorted to ground
- Rear fan on indicator driver circuit open
- Automatic temperature control (ATC)