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October 27, 2020 Service bulletin

Western Star Service Bulletin for Powernet Troubleshooting Guide

Western Star technical service bulletin SBW54-057 for 2010-2021 Western Star 4900, 2010-2021 Western Star 4700 and 2010-2022 Western Star 5700 and others.

Bulletin number
SBW54-057
Component
Equipment
Summary
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.

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