# Service bulletin TT\-15\-014

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: 10184856
- Published by NHTSA: 2020\-12\-28
- Manufacturer's number: TT\-15\-014
- Manufacturer's date: 2015\-04\-22
- NHTSA component: POWER TRAIN

## NHTSA's summary

2012\-2015 COE Transmission DTC P0974 \- P0986, may be found on, There could also be a complaint of low power and erratic shifting. These diagnostic codes may be set due to low voltage between the transmission case and the battery post.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10184856-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10184856-9999.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P0974, P0986

## Vehicles listed

- 2012 to 2015 HINO CONVENTIONAL MODELS

JSON: [/v1/bulletins/10184856](/v1/bulletins/10184856)

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