Climate Control
DTC 2: A Problem in the Rear Air Mix Control Linkage, Door, or Motor1. Test the rear air mix control motor.
Is the rear air mix control motor OK?
YES - Go to step 2.
NO - Replace the rear air mix control motor, or repair the rear air mix control linkage or door.
2. Disconnect the rear air mix control motor 7P connector.
3. Disconnect climate control unit connector A (20P).
4. Check for continuity between the following terminals of climate control unit connector A (20P) and the rear air mix control motor 7P connector.
Is there continuity?
YES - Go to step 5.
NO - Repair open in the wire(s) between the climate control unit and the rear air mix control motor.
5. Check for continuity between body ground and climate control unit connector A (20P) terminals No.1 and No.2 individually.
Is there continuity?
YES - Repair short to body ground in the wire(s) between the climate control unit and the rear air mix control motor.
NO - Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.