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Fuse and Relay Center Volvo VN With Cummins ISX Engine

Fuse and Relay Center Content

Fuse and Relay Locations, page 2 Mini-fuse, Replacement, page 5

Relay, Replacement, page 5

Service BulletinVolvo Trucks NorthAmerica TrucksGreensboro, NC USA

Date Group No. Release Page4.2013 372 09 01 1(5)

PV776-89093525USA58114 EnglPrinted in US

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Volvo Trucks North America Date Group No. Release PageService Bulletin 4.2013 372 09 01 2(5)

Fuse and Relay Locations

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FRC in Center Dash

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External Fuse and Relay Center (EFRC)

The vehicle's instrumentation, gauges and other electricallycontrolled parts are wired through the Fuse and Relay Cen-ter (FRC) and the External Fuse and Relay Center (EFRC).

The FRC is located in the center of the dash, just above theengine cover and the EFRC is mounted to the bulk head inthe engine compartmentnear the steering column.

The EFRC contains fuses and relays that provide power tothe Engine Management System (EMS) and the Aftertreat-ment System.

Located just below the in dash FRC panel are the followingmodules: Vehicle ECU/Bodybuilder module, Light ControlModule Central Locking Module.

Refer to the decal inside the FRC and the EFRC cover or tothe molded cover for vehicle's exact fuse locations and rat-ings. (Note that all fuses and relays may not be used inevery vehicle.)

The FRC and EFRC panel's can include mini-fuses, relaysand micro-relays. The micro ISO relays are smaller in sizethan conventional relays, and the pin arrangement is differ-ent. Mini-fuses are also smaller in size, but the current ratingis the same as ATO-size fuses.

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Volvo Trucks North America Date Group No. Release PageService Bulletin 4.2013 372 09 01 3(5)

Dash Mounted Fuse and Relay PositionsNote: Refer to the decal inside the FRC cover for vehicle'sexact fuse descriptions and ratings.

Note: 30A circuit breakers are installed in the following loca-tions: F8, F10, F17, F36 and F38.

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Dash MountedFuse and Relay Positions (in the top FRC panel)

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Volvo Trucks North America Date Group No. Release PageService Bulletin 4.2013 372 09 01 4(5)

Externally Mounted Fuse and Relay PositionsNote: Refer to the inside of the moulded EFRC cover for ve-hicle's exact fuse descriptions and ratings.

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Externally Mounted Fuse and Relay Positions

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Volvo Trucks North America Date Group No. Release PageService Bulletin 4.2013 372 09 01 5(5)

Mini-fuse, ReplacementYou must read and understand the precautionsand guide-lines in Service Information, group 30, General SafetyPractices, before performing this procedure. If you arenot properly trained and certified in this procedure, askyour supervisor for training before you perform it.

To replace mini-fuses in the truck electrical center, use onlythe fuse puller tool provided with the vehicle, 20378326. Re-moving the mini-fuses with another device can possiblydamage the connections.

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Relay, ReplacementYou must read and understand the precautionsand guide-lines in Service Information, group 30, General SafetyPractices, before performing this procedure. If you are

not properly trained and certified in this procedure, askyour supervisor for training before you perform it.

To replace relays, use relay puller tool J-43244. This toolcan be used on standard size or micro-relays,power relays,mini-circuit breakers, maxi-fuses, etc.

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