1. Turn the ignition switch OFF, and check for continuity between the following terminals of the audio-HVAC module 22P connector and the mode control motor 7P connector.

   22P: | 7P:
   No. 2 | No. 6
   No. 3 | No. 5
   No. 4 | No. 4
   No. 5 | No. 3
   No. 9 | No. 7
   No. 11 | No. 2
   No. 12 | No. 1

Is there continuity?

YES | - | Check for loose wires or poor connections at the audio-HVAC module 22P connector and at the mode control motor 7P connector. If the connections are good, test the mode control motor. If the mode control motor is OK, substitute a known-good audio-HVAC module, and recheck.If the symptom/indication goes away, replace the original printed circuit board.■
NO | - | Repair any open in the wire(s) between the audio-HVAC module and the mode control motor.■