# Service bulletin 25\-003\-17 REV. A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10138931
- Published by NHTSA: 2018\-06\-04
- Manufacturer's number: 25\-003\-17 REV. A
- Manufacturer's date: 2017\-06\-24
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Flash: Dosing Control Unit \(DCU\) Diagnostic and System Improvements This bulletin involves reprogramming the DCU with the latest available software and if necessary replacing the unit. Some customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes \(DTCs\):P207F \- Reductant Quality Performance. P202C \- Reductant Tank Heater Control Circuit High. P203B \- Reductant Level Sensor 1 Circuit Performance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10138931-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10138931-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Trouble codes named

P202C, P203B, P207F

## Vehicles listed

- 2016 RAM 2500
- 2016 RAM 3500
- 2016 RAM 4500
- 2016 RAM 5500

## Recalls for the same vehicles and component

- [2018269](/recalls/tc/2018269.md), 2018-05-17: Engine
- [2017441](/recalls/tc/2017441.md), 2017-09-13: Engine
- [17V562000](/recalls/nhtsa/17V562000.md), 2017-09-12: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [15V592000](/recalls/nhtsa/15V592000.md), 2015-09-23: ELECTRICAL SYSTEM:IGNITION:MODULE; ENGINE AND ENGINE COOLING:ENGINE

## Other bulletins for the same vehicles and component

- [9100923](/bulletins/11037599.md), 2026-09-30, Service bulletin: ELECTRICAL SYSTEM; ENGINE. AIR CLEANER \- NONE Instruction to Dealers while ordering the PN\# 68137142AD. 1. If the Air Cleaner Assembly is functional and only the MAF Sensor has failed, the dealer should order and replace only the MAF Sensor\(68002441AC\). 2. If the Air Cleaner Assembly has failed and the MAF Sensor remains functional, the dealer should order the new Air Cleaner Assembly PN\(68137142AD\) and reuse the existing MAF Sensor\(68002441AC\) from the failed assembly. 3. If both the Air Cleaner Assembly and the MAF Sensor have failed, the dealer should order both the New Air Cleaner Assembly\(68137142AD\) and the MAF Sensor\(68002441AC\) as separate service parts.
- [112906](/bulletins/11034373.md), 2026-07-02, Service bulletin: ENGINE. BEARING \- CRANKSHAFT THRUST and KIT
- [112906](/bulletins/11034337.md), 2026-07-02, Service bulletin: ENGINE. BEARING \- CRANKSHAFT THRUST and KIT
- [67A Rev 4 Combo](/bulletins/11002737.md), 2024-07-02, Service bulletin: ENGINE. Emission Recall 67A D Truck Engine Calibration
- [67A Rev 3 Combo](/bulletins/11002526.md), 2024-06-28, Service bulletin: ENGINE. EMISSION RECALL 67A D Truck Engine Calibration
- [S1625000004 REV.A](/bulletins/11001020.md), 2024-06-05, Service bulletin: ENGINE; UNKNOWN OR OTHER. On Board Diagnosis \(OBD\) Monitor Readiness Information
- [Reference67A](/bulletins/10251812.md), 2024-03-18, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Emission Recall 67A D Truck Engine Calibration
- [Reference67A](/bulletins/10248914.md), 2024-01-16, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING. Emission Recall 67A \- D Truck Engine Calibration
- [0901323](/bulletins/10242795.md), 2023-09-25, Service bulletin: ENGINE AND ENGINE COOLING. 6.7L New Oil Usage Information Incorrect oil used. This bulletin provides information regarding the correct oil grade to use on the 6.7L Cummins used in the 2023 to 2013 HD Trucks. The following information is intended to eliminate confusion.
- [0700723](/bulletins/10239957.md), 2023-07-31, Service bulletin: ENGINE AND ENGINE COOLING. Water Quality When Mixed With Engine Coolant

JSON: [/v1/bulletins/10138931](/v1/bulletins/10138931)

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