Technical Service Bulletin 25-008-24 — 2020 RAM 3500
UNKNOWN OR OTHER
Bulletin Details
| TSB ID | 25-008-24 |
| Manufacturer | |
| Vehicle | 2020 RAM 3500 |
| Component | UNKNOWN OR OTHER |
| Communication Date |
Bulletin Summary
"Flash: Diesel Exhaust Fluid (DEF) Dosing Control Unit (DCU) Update Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P21C4-00 - Reductant Line Heater Relay Control Circuit High. ● U11C1-00 - Reductant Control Module Received Implausible Data From ECM/PCM. These DTCs will occur after installation of service DCU 68458603AB. This bulletin involves reprogramming the DCU with the latest available software."
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2020 RAM 3500
9004439
ENGINE
18-064-25
ELECTRICAL SYSTEM
S2422000001 REV.D
ELECTRICAL SYSTEM
03-001-25 REV. A
POWER TRAIN
101092
POWER TRAIN
25-006-24
UNKNOWN OR OTHER
100681
UNKNOWN OR OTHER
100681
ENGINE
S2423000039
ELECTRICAL SYSTEM
14-005-24
UNKNOWN OR OTHER