Possible Causes
WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| LOW BATTERY VOLTAGE |
| FUSED IGNITION SWITCH CIRCUIT OPEN/HIGH RESISTANCE |
| FUSED IGNITION SWITCH CIRCUIT SHORTED TO GROUND |
| GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| HIGH DATA LINK (+) CIRCUIT OPEN/HIGH RESISTANCE |
| LOW DATA LINK (-) CIRCUIT OPEN/HIGH RESISTANCE |
| HIGH DATA LINK (+) CIRCUIT SHORT TO VOLTAGE |
| LOW DATA LINK (-) CIRCUIT SHORT TO VOLTAGE |
| HIGH DATA LINK (+) CIRCUIT SHORT TO GROUND |
| LOW DATA LINK (-) CIRCUIT SHORT TO GROUND |
| NOX SENSOR 1/1 |
| NOX SENSOR 1/2 |
| PARTICULATE MATTER SENSOR |
| DEF HEATER CONTROL UNIT |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .