Operation CHARM: Car repair manuals for everyone.

Front and Rear Blower Output 1 Open

Test 1:




Tests 2 - 5:




SYMPTOM
FRONT AND REAR BLOWER OUTPUT 1 OPEN

WHEN MONITORED
Continuously.

SET CONDITION
If the FCM detects no voltage present on the Front/Rear Blower Motor Relay Control circuit.

POSSIBLE CAUSES
- Check DTCS
- B+ circuit open
- Front and rear blower relays open
- Front/rear blower motor relay control circuit shorted to ground
- Front/rear blower motor relay control circuit open
- Front control module