# Service bulletin TT 20 18 02

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: 10149851
- Published by NHTSA: 2018\-12\-03
- Manufacturer's number: TT 20 18 02
- Manufacturer's date: 2018\-08\-10
- NHTSA component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE

## NHTSA's summary

Additional diagnostic recommendations to address fuel pump relay power supply issues.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10149851-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10149851-0001.pdf)

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

## Components

Fuel system, Fuel pump

## Vehicles listed

- 2011 to 2012 VOLKSWAGEN ROUTAN

## Other bulletins for the same vehicles and component

- [Edition41](/bulletins/10242398.md), 2023-09-18, Service bulletin: SUSPENSION; EQUIPMENT; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. VW Elsa Newsletter
- [TB\-20\-13\-05](/bulletins/10052670.md), 2013-08-30, Service bulletin: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. VOLKSWAGEN: ON SOME VEHICLES, LOW FUEL STORED IN ECM PRESSURE, ENGINE WOULD CRANK BUT NOT START LONG PERIODS WITHOUT DRIVING, MAY RUN ROUGH AND/OR MIL ON. ALL MODELS 2008\-2013. \*PE

JSON: [/v1/bulletins/10149851](/v1/bulletins/10149851)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20TT%2020%2018%2002&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10149851&vehicle=Service%20bulletin%20TT%2020%2018%2002)