Possible Causes
WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| (F344) SMART POWER RELAY FEED OPEN OR SHORTED TO GROUND |
| (K670) EGR COOLER BYPASS VALVE SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| EXHAUST GAS RECIRCULATION TEMPERATURE SENSOR OUT OF RANGE |
| EGR COOLER FOULED |
| EGR COOLER BYPASS VALVE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L .