FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Blend Door Output Shorted to Battery

Test 1 - 4:




Test 5 - 9:




SYMPTOM
BLEND DOOR OUTPUT SHORTED TO BATTERY

TEST NOTE
This symptom is diagnosed using the test BLEND DOOR OUTPUT SHORTED TO BATTERY.

WHEN MONITORED
Whenever the BCM attempts to move one of the HVAC doors.

SET CONDITION
When the BCM detects one or more of the following outputs shorted to battery: mode drive, blend drive, recirc drive or common drive (NOTE: all shorted to battery codes will be set when one output is shorted).

POSSIBLE CAUSES
- Driver circuits shorted together
- Recirculation door actuator - shorted
- Recirculation door driver circuit short to battery
- Blend door driver circuit short to battery
- Common door driver circuit short to battery
- Mode door driver circuit short to battery
- Mode door actuator - shorted
- Blend door actuator - shorted
- Body control module - driver shorted internal