# Service bulletin sbu54056

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: 10160707
- Published by NHTSA: 2019\-06\-03
- Manufacturer's number: sbu54056
- Manufacturer's date: 2019\-03\-08
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

sbu54056 Powernet Troubleshooting Guide Batteries, Path, Alternator, and Starter

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10160707-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10160707-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2017 to 2018 FCCC MT45
- 2017 to 2018 FCCC MT55G
- 2017 to 2018 FCCC S2
- 2017 FREIGHTLINER M2
- 2018 FREIGHTLINER M2 BUSINESS CLASS
- 2017 to 2018 THOMAS BUILT BUSES MINOTOUR
- 2017 to 2018 THOMAS BUILT BUSES SAF\-T\-LINER C2
- 2017 to 2018 THOMAS BUILT BUSES SAF\-T\-LINER EFX
- 2017 to 2018 THOMAS BUILT BUSES SAF\-T\-LINER HDX

## Other bulletins for the same vehicles and component

- [SS1032728](/bulletins/10195640.md), 2021-06-09, Service bulletin: ELECTRICAL SYSTEM. SS 1032728 Bulkhead Module Fault Codes 524280 thru 524286 with FMI 7 Clarification
- [SS1032989](/bulletins/10195624.md), 2021-06-09, Service bulletin: ELECTRICAL SYSTEM. Service Solution SS 1032989 – BHM Fault Code Changes
- [SS1033289](/bulletins/10195484.md), 2021-06-09, Service bulletin: ELECTRICAL SYSTEM. Service Solution SS 1033289 BHM Fault Code SPN 524249 / FMI 7
- [FAB156](/bulletins/10193718.md), 2021-05-18, Service bulletin: ELECTRICAL SYSTEM:HAND HEATER:WIRING HARNESS; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Freightliner Action Bulletin FAB156 M2 aux rear heat and AC
- [FAB152](/bulletins/10193695.md), 2021-05-18, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Freightliner Action Bulletin FAB152 Chassis Module Relocation
- [D19M3 GHG17](/bulletins/10160771.md), 2019-06-03, Service bulletin: ELECTRICAL SYSTEM. D19M3 GHG17 Detroit? DD5? Software Reprogramming
- [DOC\-1033743](/bulletins/10151003.md), 2018-12-10, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. SS 1033743: M2 Parameters Disabled after Programming the BHM
- [15\-016](/bulletins/10129660.md), 2018-03-05, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 15\-016\-DLR New Essential Tool For CPWA, CPPRA, Ltd CPPRA, \& DSDWC Parties: Cadex CA\-12 Battery Tester
- [0237\-14](/bulletins/10126745.md), 2018-01-05, Service bulletin: ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID. 0237\-14 Engine Brake Solenoid
- [2017\-0938](/bulletins/10108979.md), 2017-08-01, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. E\-ONE vehicles are designed with electrical circuit protection \(e.g. fuses\), to provide overcurrent protection during short\-circuit conditions or malfunction of components. Fuses are sometimes shared amongst different circuits. For example, the circuits for the pump primer motor and chassis power share a common 300Amp fuse. If either of these circuits experiences an electrical overload, the fuse will act as designed to protect the users and the vehicle from further damage. As such, an overcurrent condition in the pump primer circuit will also disconnect main power from the cab and chassis and cause the engine to shut down.

JSON: [/v1/bulletins/10160707](/v1/bulletins/10160707)

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