# Service bulletin 167\-T1605\-12

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: 10119451
- Published by NHTSA: 2017\-10\-15
- Manufacturer's number: 167\-T1605\-12
- Manufacturer's date: 2016\-10\-18
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL; POWER TRAIN

## NHTSA's summary

TT\-16\-003 Subject vehicles may exhibit a MIL lamp on with reduced engine power due to a fault within the SCR \(Selective Catalytic Reduction\) system. If DTC's \(Diagnostic Trouble Codes\) related to the DEF \(Diesel Exhaust Fluid\) pump set, it will be helpful to follow the latest diagnostic troubleshooting procedures published in the 2015MY OR LATER online Workshop Manual found on Hinonet. Hino has found that the majority of DEF pumps returned through warranty function properly and did not require replacement. The DEF pump has a serviceable inlet connector \(which has a filter screen\), a serviceable backflow connector, and a serviceable DEF filter. Failure to follow the published diagnostic procedure may result in warranty chargeback, if the pump assembly is replaced when not required. Please review the diagnostic tips below regarding the DEF pump.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10119451-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10119451-0001.pdf)

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

## Components

Engine, Transmission and driveline

## Vehicles listed

- 2011 to 2016 HINO CONVENTIONAL TRUCKS W/JO8

JSON: [/v1/bulletins/10119451](/v1/bulletins/10119451)

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