# Service bulletin TSB250042

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: 11014994
- Published by NHTSA: 2025\-03\-05
- Manufacturer's number: TSB250042
- Manufacturer's date: 2025\-02\-25
- NHTSA component: ENGINE

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the OEM ignition control module relay which may be oriented in a way that allows water to enter the relay connection, resulting in a crank no start event or fault code 6631 \(Engine Ignition Control Module \#1 \- Abnormal Update Rate\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014994-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014994-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS X15N

JSON: [/v1/bulletins/11014994](/v1/bulletins/11014994)

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