Rear Blend Door Not Responding (Active)

Tests 1 - 2:

Tests 3 - 7:

SYMPTOM
REAR BLEND DOOR NOT RESPONDING (ACTIVE)

WHEN MONITORED
With the ignition ON and the IOD fuse installed.

SET CONDITION
This DTC is set if the ATC does not receive feedback pulses within 5 seconds of the drive voltage being applied.

POSSIBLE CAUSES
- Rear blend door driver circuit (A) shorted to ground
- Rear blend door driver circuit (B) shorted to ground
- Rear blend door driver circuits (A) and (B) shorted together
- Rear blend door driver circuit (A) open
- Rear blend door driver circuit (B) open
- ATC
- Rear blend door actuator