DTC Troubleshooting: 2

DTC 2:  A Short in the Air Mix Control Motor Circuit


1.Disconnect the air mix control motor 7P connector.

2.Disconnect audio-HVAC module 22P connector.

3.Check for continuity between body ground and the audio-HVAC module 22P connector terminals No. 9, 13, 14, 17, and 18 individually.

Is there continuity?


YES - Repair any short to body ground in the wire(s) between the audio-HVAC module and the air mix control motor.n


NO - Go to 4.

4.Turn the ignition switch ON (II), and check the same terminals for voltage.

Is there any voltage?


YES - Repair any short to power in the wire(s) between the audio-HVAC module and the air mix control motor. This short may also damage the printed circuit board. Repair the short to power before replacing the printed circuit board.n


NO - Test the air mix control motor. If the air mix 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.n