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 - 6:




SYMPTOM
ATC BLOWER MOTOR SPEEDS INCORRECT

POSSIBLE CAUSES
- Ground circuit open
- Blower motor control circuit open
- Ground circuit open-junction block
- Blower motor control circuit short to voltage
- Blower motor power module - no control
- Body control module - blower control inoperable