Possible Causes
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| BLOWER MOTOR RELAY |
| BLOWER MOTOR SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE |
| FUSED IGNITION CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| BLOWER CONTROL CIRCUIT SHORTED TO GROUND |
| BLOWER CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| GROUND CIRCUIT OPEN OR HIGH RESISTANCE |
| BLOWER MOTOR POWER MODULE |
| HVAC MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .