Recirc Door Not Responding (Active)

Test 1 - Test 2:

Test 3 - Test 7:

SYMPTOM
RECIRC DOOR NOT RESPONDING (ACTIVE)

WHEN MONITORED
Ignition in RUN and IOD fuse installed.

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

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