Possible Causes
WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| BLOWER MOTOR RETURN CIRCUIT OPEN OR HIGH RESISTANCE |
| BLOWER MOTOR RETURN CIRCUIT SHORTED TO VOLTAGE |
| BLOWER MOTOR RETURN CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| BLOWER MOTOR POWER MODULE |
| HVAC MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .