Is the rear air mix control motor OK?
YES -
Go to step 8.
NO -
Replace the rear air mix control motor See: Heating and Air Conditioning/Air Door/Air Door Actuator / Motor/Service and Repair/Rear Air Mix
Control Motor Replacement.?
8. Disconnect the rear air mix control motor 7P connector.
9. Disconnect climate control unit connector A (40P) and B (14P).
10. Check for continuity between climate control unit connector B (14P) terminal No. 5 and body ground.
Is there continuity?
YES -
Repair a short to body ground in the wire between the climate control unit and the rear air mix control motor.?
NO -
Go to step 11.
11. Check for continuity between climate control unit connector A (40P) terminal No. 6 and climate control unit connector B (14P) terminal No.
5.
Is there continuity?
YES -
Repair a short in the wires.?
NO -
Go to step 12.
12. Turn the ignition switch to ON (II), and measure the voltage between climate control unit connector B (14P) terminal No. 5 and body ground.