Possible Causes
WARNING: This page is about a different variant/trim than selected.
| Possible Causes |
|---|
| OTHER SCR, REDUCTANT, NOX, OR EGT DTCS PRESENT |
| EXHAUST GAS TEMPERATURE SENSOR |
| DEF SUPPLY LINE RESTRICTION |
| SCR CATALYST |
| DEF INJECTOR |
| DEF SUPPLY PUMP |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .