Possible Causes
WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| CMP SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| 5-VOLT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE |
| SENSOR RETURN CIRCUIT OPEN/HIGH RESISTANCE |
| CMP SIGNAL CIRCUIT SHORTED TO GROUND |
| CMP SIGNAL CIRCUIT SHORTED TO THE 5-VOLT SUPPLY CIRCUIT |
| CMP SIGNAL CIRCUIT SHORTED TO THE RETURN CIRCUIT |
| (K44) CMP SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| FAULTY FUEL INJECTOR |
| CAMSHAFT POSITION SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to STANDARD PROCEDURE .