Blend Door Stall Test Failure - ATC & MTC

Test 1 - Test 2:

Test 3 - Test 4:

Test 5 - Test 7:

Test 8 - Test 10:

Test 11 - Test 14:

Test 15 - Test 17:

Test 18 - Test 21:

Test 22 - Test 23:

SYMPTOM
BLEND DOOR STALL TEST FAILURE - ATC and MTC

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
- Check code(s) present
- SUN or in car temperature sensor failure
- Mode door feedback/stall test failure DTC present
- Additional feedback/stall test failure DTCS present
- SUN sensor shorted
- SUN sensor signal circuit shorted to voltage
- Blend door feedback signal circuit shorted to the door driver Circuit(s)
- Blend door, linkage, actuator
- Blend door driver circuit open
- Common door driver circuit open
- Body control module
- Body control module
- Sensor ground circuit open
- Body control module
- 5 volt supply circuit shorted to ground
- 5 volt supply circuit open
- 5 volt supply circuit shorted to sensor ground circuit
- Body control module
- Blend door, linkage, actuator
- Blend door feedback signal circuit shorted to ground
- Blend door feedback signal circuit open
- Blend door feedback signal circuit shorted to sensor ground circuit
- Body control module
- 5 volt supply circuit shorted to voltage
- Blend door feedback signal circuit shorted to voltage
- Body control module
- Wiring causing intermittent condition