Mode Motor Not Responding (AZC) (Active)

Test 1 - 2:

Test 3 - 7:

SYMPTOM
MODE MOTOR NOT RESPONDING (AZC) (ACTIVE)

WHEN MONITORED
Ignition in RUN and IOD fuse installed.

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

POSSIBLE CAUSES
- Mode door driver circuit (B) shorted to ground
- Mode door driver circuit (A) shorted to ground
- Mode door driver circuits (A) and (B) shorted together
- AZC module mode door not responding
- Mode door driver circuit (A) open
- Mode door driver circuit (B) open
- Mode door motor