CHECK AIR MIX DOOR AND MODE DOOR POSITION SIGNALS.

1) Set the air flow control dial to the FACE position.

2) Turn the fan dial to AUTO.

3) If there is a system malfunction in the air mix door signal or the mode door position signal, the FRESH/RECIRC switch LED goes off or blinks.

4) If the system has no trouble, the FRESH/RECIRC switch LED illuminates.

QUESTION

Does the FRESH/RECIRC switch LED illuminate?

Yes No

Check the mode door actuator circuit.