Malfunction Indicator Lamp (MIL) Illumination, Diagnostic Trouble Codes (DTCs) P21C4 – (Diesel Exhaust...
Ram technical service bulletin S1625000002 REV.B for 2013-2024 Ram 2500, 2013-2024 Ram 3500 and 2013-2024 Ram 5500 and others.
- Bulletin number
- S1625000002 REV.B
- Component
- Unknown or other
- Summary
- Malfunction Indicator Lamp (MIL) Illumination, Diagnostic Trouble Codes (DTCs) P21C4 – (Diesel Exhaust Fluid) Reductant Line Heater Control Circuit High, and U11C1 – Reductant Control Module Received Implausible Data From ECM/PCM, Set
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