# Service bulletin K54101221

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: 10145540
- Published by NHTSA: 2018\-10\-15
- Manufacturer's number: K54101221
- Manufacturer's date: 2018\-09\-25
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN; EQUIPMENT

## NHTSA's summary

\*\* Tech Tip \*\* TT \- 001 \- 2015 \- How And When To Diagnose A P0402 Code

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10145540-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10145540-0001.pdf)

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

## Components

Equipment and accessories, Transmission and driveline

## Trouble codes named

P0402

## Vehicles listed

- MACK CHU
- MACK CXU
- MACK GU
- 2007 to 2017 MACK LEU
- MACK LR
- 2007 to 2018 MACK MRU
- MACK TD

JSON: [/v1/bulletins/10145540](/v1/bulletins/10145540)

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