# Service bulletin CPI444774

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: 10161348
- Published by NHTSA: 2019\-06\-24
- Manufacturer's number: CPI444774
- Manufacturer's date: 2019\-05\-30
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

256\-6453 and 256\-6454 temperature sensor used in fuel, air, and coolant applications are failing open or shorted. When the failure occurs, a diagnostic code can be generated or an alarm will sound.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10161348-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10161348-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CATERPILLAR C13
- CATERPILLAR C15
- CATERPILLAR C18
- CATERPILLAR C9

JSON: [/v1/bulletins/10161348](/v1/bulletins/10161348)

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