# Service bulletin TSB220031

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: 10212890
- Published by NHTSA: 2022\-06\-06
- Manufacturer's number: TSB220031
- Manufacturer's date: 2022\-02\-10
- NHTSA component: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of a loose connection between the micro fuse and the fuse seat for the coolant pump circuit, which may cause the coolant pump to not function properly.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10212890-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10212890-9999.pdf)

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

## Components

Electrical system, Engine

## Vehicles listed

- CUMMINS EV1048

JSON: [/v1/bulletins/10212890](/v1/bulletins/10212890)

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