Service Bulletin for Lengthening the Backup Light Harness
Western Star technical service bulletin SBW54-075 for 2010-2020 Western Star 4900, 2010-2020 Western Star 4700 and 2010-2020 Western Star 5700 and others.
- Bulletin number
- SBW54-075
- Component
- Electrical system
- Summary
- 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.
Owners of these vehicles have filed 2 complaints in the electrical category.
Vehicles covered
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