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 |
|---|
| INTAKE AIR HEATER RELAY HARNESS CONNECTORS CORRODED OR IMPROPERLY SEATED |
| INTAKE AIR HEATER RELAY CONTROL CIRCUIT OPEN/HIGH RESISTANCE |
| INTAKE AIR HEATER RELAY CONTROL RETURN OPEN/HIGH RESISTANCE |
| INTAKE AIR HEATER RELAY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always Perform The PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE Before Proceeding. Refer To PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .