FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

ATC Blower Motor Speeds Incorrect

Test 1 - 3:




Test 4 - 5:






SYMPTOM
ATC BLOWER MOTOR SPEEDS INCORRECT

POSSIBLE CAUSES
- Ground circuit open
- Blower motor control circuit open
- Blower motor control circuit shorted to voltage
- Blower motor power module
- Ground circuit open - junction block
- Body control module