# Service bulletin TechTalk3253

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: 10186664
- Published by NHTSA: 2021\-02\-04
- Manufacturer's number: TechTalk3253
- Manufacturer's date: 2021\-01\-25
- NHTSA component: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM

## NHTSA's summary

Tech Talk continuing discussion on Western Star 5700 Fault code 2049\-9 and 527\-9.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186664-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186664-9999.pdf)

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

## Components

Electrical system, Throttle and cruise control

## Vehicles listed

- 2016 WESTERN STAR 5700

## Other bulletins for the same vehicles and component

- [SBW54\-080](/bulletins/10198595.md), 2021-06-29, Service bulletin: ELECTRICAL SYSTEM. Western Star Service Bulletin for Key Fob ID Retention. Key fobs for remote keyless entry on Western Star vehicles are delivered in packages that include a unique ID for the fob. The ID is required when pairing the key fob with a vehicle.
- [SS708\-WST2021](/bulletins/10198288.md), 2021-06-26, Service bulletin: ELECTRICAL SYSTEM. Western Star Service Solution for Low Voltage Disconnect \(LVD\) Troubleshooting: Western Star 5700 and New 4700.
- [SBW54\-057](/bulletins/10189332.md), 2021-03-25, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Western Star Service Bulletin for Powernet Troubleshooting Guide \- Batteries, Path, Alternator, and Starter. When troubleshooting powernet issues, use the BCT\-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter is the only Daimler\-approved tool for troubleshooting vehicle Powernet issues.
- [WP21\-007](/bulletins/10189319.md), 2021-03-24, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT\-460DTNA Powernet Assessment Tool \(AutoMeter\) as the required powernet system tester, not all battery tags have to be retained support Warranty\-related claims.
- [WI21\-006](/bulletins/10187444.md), 2021-02-26, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes \- Claim Guidelines.
- [TechTalk3253](/bulletins/10180082.md), 2020-09-25, Service bulletin: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Tech Talk Discussion for a Western Star 5700 fault code 2049\-9 and 527\-9.
- [20CSA\-15](/bulletins/10179249.md), 2020-09-02, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2. On Thursday, September 3, 2020, Service Pack \(SP\) 2 for DiagnosticLink 8.12 Standard and Professional will be made available to download from the Detroit Diesel server.
- [SBW54\-075](/bulletins/10173895.md), 2020-04-18, Service bulletin: ELECTRICAL SYSTEM; BACK OVER PREVENTION. Service Bulletin for Lengthening the Backup Light Harness. Though the back\-up light harness is long enough to connect to the backup light switch, it may be short enough that the wire seals in the connector can be stressed. Moisture entering through the seals can cause corrosion, resulting in a bad connection and/or failure of the switch. As a result, backup lights and, if equipped, the backup alarm, may not function when the vehicle is shifted into reverse.
- [SBW54\-061](/bulletins/10171362.md), 2020-02-15, Service bulletin: ELECTRICAL SYSTEM. Service Bulletin for Guidelines for Repairing or Replacing an Electrical Harness. Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced.
- [SS1034068](/bulletins/10170320.md), 2020-01-19, Service bulletin: ELECTRICAL SYSTEM. Service Solution for Meritor Wabco OnGuard Radar Service Alignment. If the radar sensor needs to be aligned, the radar sensor mounting system has become damaged or has loosened, or new radar sensor software has been installed, a Radar Sensor Service Alignment will need to be performed.

JSON: [/v1/bulletins/10186664](/v1/bulletins/10186664)

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