Possible Causes
| Possible Causes |
|---|
| DAMAGED EXHAUST SYSTEM |
| LEAKING EXHAUST SYSTEM |
| HIGH RESISTANCE IN EXHAUST DIFFERENTIAL PRESSURE SENSOR CIRCUITS |
| HOSE/TUBE CONNECTIONS TO THE EXHAUST DIFFERENTIAL PRESSURE SENSOR |
| EXHAUST DIFFERENTIAL PRESSURE SENSOR |
| DIESEL PARTICULATE FILTER |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure