Possible Causes
| Possible Causes |
|---|
| RETURN SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| RECIRCULATION DOOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| RECIRCULATION DOOR SIGNAL CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| RECIRCULATION DOOR ACTUATOR |
| HVAC MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .