# Service bulletin TSB220194\-091920

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: 10224324
- Published by NHTSA: 2022\-10\-17
- Manufacturer's number: TSB220194\-091920
- Manufacturer's date: 2022\-09\-19
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; ENGINE AND ENGINE COOLING

## NHTSA's summary

This Technical Service Bulletin was issued for reducing occurrences of Fault code 197. Symptoms could be Audible coolant level warning; Light on screen with ?Low Coolant Level? message; Active or inactive Fault Code 197. Root Cause: Coolant level fluctuations are higher than expected during normal engine operation triggering the Fault Code 197. Resolution is for a new ECM calibration code revision has been released that reduce occurrences of low coolant level fault code 197. If a calibration update for this fault code is available, the ECM calibration revision must be that revision or higher

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10224324-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10224324-9999.pdf)

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

## Components

Engine, Engine control module

## Vehicles listed

- CUMMINS X15

JSON: [/v1/bulletins/10224324](/v1/bulletins/10224324)

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