Mode Door Feedback Failure

Tests 1 - 4:

Tests 5 - 7:

Tests 8 - 11:

Tests 12 - 15:

Tests 16 - 18:

Test 19:

SYMPTOM
MODE DOOR FEEDBACK FAILURE

WHEN MONITORED
Continuously.

SET CONDITION
The BCM detects a loss of signal on the mode feedback and/or blend feedback inputs.

POSSIBLE CAUSES
- 5 volt supply circuit short to ground
- 5 volt supply circuit open
- 5 volt supply circuit short to sensor ground
- Blend door actuator shorted to sensor ground
- Mode door actuator shorted to sensor ground
- 5 volt supply circuit short to sensor ground
- Mode door feedback signal circuit short to battery
- Common door driver wire open
- Mode door driver wire open
- Body control module - Common door driver
- Body control module - Mode door driver
- Mode door actuator
- Sensor ground wire open
- Body control module
- Mode door feedback signal circuit short to ground
- Mode door feedback signal circuit open
- Mode door feedback signal circuit short to sensor ground
- Body control module - feedback signal open/shorted
- Mode door actuator
- 5 volt supply circuit short to voltage
- Body control module 5 volts supply high