Possible Causes
WARNING: This page is about a different car, the 2015 Fiat 500. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| BLEND DOOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| BLEND DOOR SIGNAL CIRCUIT OPEN |
| SENSOR GROUND CIRCUIT OPEN |
| BLEND DOOR SIGNAL CIRCUIT SHORTED TO 5 VOLT SUPPLY CIRCUIT |
| BLEND DOOR ACTUATOR |
| A/C HEATER CONTROL |
Always perform the HVAC Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to HVAC PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .