Operation CHARM: Car repair manuals for everyone.

Blower Motor Inoperative - MTC

Test 1 - 3:




Test 4 - 7:




Test 8 - 9:






SYMPTOM
BLOWER MOTOR INOPERATIVE - MTC

POSSIBLE CAUSES
- Junction block fuse # 1
- Fused ignition switch output (run) circuit shorted to ground
- Blower motor shorted to ground
- Ground circuit open
- A/C - heater control open
- Blower motor driver circuit open
- Resistor-open hi blower motor driver
- Blower motor driver circuit open
- Fused ignition switch output (run) circuit open
- Blower motor-open