RAM

1806820

2020-08-26 · NHTSA 10221889

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P1D30-00 - Oil Viscosity Too Low. Attempting to clear the DTC will be unsuccessful. P2453-00 - Diesel Particulate Filter Differential Pressure Sensor Circuit Performance. P0401-00 - EGR Flow Insufficient Detected. P0133-00 - O2 Sensor 1/1 Slow Response. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P050E-00 - Cold Start Engine Exhaust Temperature Too Low. P0299-00 - Turbocharger Underboost Condition. P0402-00 - EGR Flow Excessive Detected. P245B - EGR Cooler Bypass Control Circuit Performance. P20C6 - Reductant Heater 4 Control Circuit Performance. P208B - Reductant Pump 1 Control Performance. P249C - Excessive Time To Enter Closed Loop Reductant Injection Control. P20E8-00 - Reductant Pressure Too Low. P20E9-00 - Reductant Pressure Too High. In addition, the following software enhancement is available:Ability to enable the ?Fuel System Cleaning? routine in wiTECH.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.