Possible Causes
| Possible Causes |
|---|
| DEFROST MODE DRIVE CIRCUIT OPEN OR HIGH RESISTANCE |
| DEFROST MODE DRIVE CIRCUIT FOR A SHORTED TO ANOTHER CIRCUIT |
| PANEL MODE DRIVE CIRCUIT OPEN OR HIGH RESISTANCE |
| PANEL MODE DRIVE CIRCUIT FOR A SHORTED TO ANOTHER CIRCUIT |
| MODE DOOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| MODE DOOR SIGNAL CIRCUIT FOR A SHORTED TO ANOTHER CIRCUIT |
| RETURN SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| FRONT MODE DOOR ACTUATOR |
| HVAC MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .