# Service bulletin 18\-028\-16 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: 10135114
- Published by NHTSA: 2018\-05\-07
- Manufacturer's number: 18\-028\-16 REV. A
- Manufacturer's date: 2016\-08\-19
- NHTSA component: ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

## NHTSA's summary

Flash: 6.7L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module \(ECM\) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo Diesel. NOTE: There will be a choice between 2 calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Prevent or reduce Malfunction Indicator Lamp \(MIL\) illumination when no defect is present for the following Diagnostic Trouble Codes \(DTCs\). These faults have been changed from a one trip fault to a two trip fault: · P0201 \- P0206 \- Fuel Injector X Circuit/Open Fault Codes. · P049D \- Exhaust Gas Recirculation \(EGR\) Control Position Exceeding Learning Limit. Improvements to prevent or reduce Malfunction Indicator Lamp \(MIL\) illumination when no defect is present for: · \*\*P229E \- NOx Sensor Circuit \- Bank 1 Sensor 2 \(For non\-ammonia delete systems only\). · P229F \- Aftertreatment NOx Sensor Circuit Performance \- Bank 1 Sensor 2 \(For non\-ammonia delete systems only\). · P22A7 \- NOx Sensor Heater Circuit Performance \- Bank 1 Sensor 2 \(For non\-ammonia delete systems only\). · U059F \- Invalid Data Received From NOx Sensor "B" \(For non\-ammonia delete systems only\). · P2459 \- Diesel Particulate Filter Regeneration Too Frequent. · P218F \- Reductant No Flow Detected. · P242F \- Diesel Particulate Filter Restriction \- Ash Accumulation.\*\* · P1C55 \- NOx Sensor Intermittent \- Bank 1 Sensor 1 \(For ammonia delete systems only\). · P205E \- \(Diesel Exhaust Fluid\) Reductant Tank Temperature Sensor Circuit Intermittent \(setting when the block heater is plugged in\). · P20E8 \- \(Diesel Exhaust Fluid\) Reductant Pressure Too Low. · U110E \- Lost Ambient Temperature Message. · U3017 \- Control Module Timer/Clock Performance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10135114-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10135114-0001.pdf)

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

## Components

Electrical system, Engine, Exhaust and emissions, Fuel system, Fuel injection

## Trouble codes named

P0201, P0206, P049D, P1C55, P205E, P20E8, P218F, P229E, P229F, P22A7, P242F, P2459, U059F, U110E, U3017

## Vehicles listed

- 2014 RAM 3500
- 2014 RAM 4500

JSON: [/v1/bulletins/10135114](/v1/bulletins/10135114)

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