Freightliner Service Bulletin for Optional 30K High-Current Trailer Cord Circuit Breaker Replacement
Freightliner technical service bulletin SB54-335 for 2017-2021 Freightliner Cascadia.
- Bulletin number
- SB54-335
- Component
- Electrical system
- Summary
- Freightliner Service Bulletin for Optional 30K High-Current Trailer Cord Circuit Breaker Replacement. New Cascadia vehicles manufactured from September 1, 2016 through June 28, 2020 with an optional high current single- or dual-pole trailer cord were equipped with an auto-reset type I circuit breaker mounted in the battery cable access (BCA) box. Since type I circuit breakers can mask potential issues by resetting every time an over-current condition occurs, Daimler Trucks North America (DTNA) switched to a manual reset type III circuit breaker on June 29, 2020. This bulletin includes instructions for converting from a type I to a type III circuit breaker, how and where to reset a type III circuit breaker, and conditions to be aware of when troubleshooting a type III circuit breaker.
Owners of these vehicles have filed 10 complaints in the electrical category.
Vehicles covered
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