Possible Causes
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| LOW DIESEL EXHAUST FLUID LEVEL |
| CONTAMINATED DIESEL EXHAUST FLUID |
| DEF PRESSURE LINE DAMAGED/LEAKING |
| DEF INJECTOR PHYSICALLY STUCK OPEN |
| DEF INJECTOR RESTRICTION |
| DEF SUPPLY TUBE RESTRICTION |
| DEF SUPPLY PUMP ASSEMBLY |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .