DTC 2
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 - Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.
NO - Go to step 2.
2. Remove the rear air mix control motor.
3. Check the rear air mix control linkage and door for smooth movement.
Do (fie rear air mix control linkage and door move smoothly?
YES - Replace the rear air mix control motor.
NO - Repair the rear air mix control linkage and door.