DTC 8

DTC 8: A Short in the Air Mix Control Motor Circuit

1. Disconnect the air mix control motor 5P connector.
2. Disconnect the climate control unit 30P connector.




3. Check for continuity between body ground and the climate control unit 30P connector terminals No.2, 4,9,20, and 21 individually.

Is there continuity?

YES - Repair any short to body ground in the wire(s) between the climate control unit and the air mix control motor.

NO - Go to step 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 climate control unit and the air mix control motor. This short may also damage the climate control unit. Repair the short to power before replacing the climate control unit

NO - Substitute a known-good air mix control motor, and recheck. If the symptom/indication goes away, replace the original air mix control motor. If the symptom/indication continues, substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original heater control panel.