Blend Door Stall Test Failure

Test 1:

Test 2 - 5:

Test 6 - 8:

Test 9 - 11:

SYMPTOM
BLEND DOOR STALL TEST FAILURE

WHEN MONITORED
During HVAC motor calibration.

SET CONDITION
This DTC will set if the BCM is unable to detect the end of travel for the blend door.

POSSIBLE CAUSES
- Blend door actuator
- Blend door driver circuit open between the BCM and C200
- Blend door driver circuit open between the C200 and actuator
- Blend door driver circuit shorted to ground between C200 and the actuator
- Blend door driver circuit shorted to ground between the BCM and C200
- Common door driver circuit open between the BCM and C200
- Common door driver circuit open between the C200 and actuator
- Common door driver circuit shorted to ground between the BCM and C200 actuator
- Common door driver circuit shorted to ground between the C200 and actuator
- Wiring harness inspection
- Body control module