Jonathan Yarden Mar 25, 2021 · 5 min. read
In this article you will find a description of fuses and relays Volvo,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Main fuses
The main fuses are located in the main fuse box inside the battery box on the chassis.
Fuse | Ampere rating [A] | Use |
1 | 125 | Preheating |
2 | 200 | Hydraulic bogie lift / Superstructure |
3 | 125 | Cab |
4 | 40 | Secondary lighting supply |
In relay and fuse box
The fuses in the electrical distributor unit are of the blade fuse type, two different types are used.
Blade fuses
Fuse | Use | Fuse rating [A] |
F1 | TPM | 10 |
F2 | Lighting, cargo area | 10 |
F3 | Loading lamp, fifth-wheel lighting | 10 |
F4 | Electrically adjustable seat, cab tilt pump, loading and fifthwheel lighting | 5 |
F5 | Instrumentation (kl. 30) | 5 |
F6 | Air drier | 5 |
F7 | Vehicle control unit, electronic immobilizer | 5 |
F8 | Instrumentation, TPM | 5 |
F9 | Range interlock, area interlock (in gearbox) | 5 |
F10 | NOx sensor, road toll | 5 |
F11 | Control unit gear shifter | 5 |
F12 | Control unit transmission/retarder | 10 |
F13 | Windscreen wiper | 15 |
F14 | Cigarette lighter, lamp storage compartment, centre section | 10 |
F15 | Water separator, fuel filter heater, water drain valve | 10 |
F16 | Differential lock, power take-off | 5 |
F17 | Control unit external lighting | 5 |
F18 | Horn, solenoid valve for compressed air horn | 10 |
F19 | Climate unit, FMS gateway | 5 |
F20 | Central locking, parking heater | 10 |
F21 | Fan, climate unit | 15 |
F22 | Courtesy light | 10 |
F23 | Air suspension | 5 |
F24 | Air drier, parking heater ADR, electrically heated rear view mirrors | 10 |
F25 | Power supply, ABS/EBS trailer | 20 |
F26 | Bodywork fuse box | 30 |
F27 | Electric window lift left side, electrically heated rear view mirrors | 20 |
F28 | ABS/EBS | 20 |
F29 | Coffee maker | 30 |
F30 | Electric window lift right side | 20 |
F31 | Main fuse for fuses 95–97 | 20 |
F32 | Climate unit | 20 |
F33 | Electric cab tilting | 30 |
F34 | Amplifier | 30 |
F35 | Electrically adjustable seat | 20 |
F36 | Circuit for reversing lights, trailer | 15 |
F37 | Telephone, Dynafleet | 5 |
F38 | Entry lamps | 5 |
F39 | Electrically adjustable rear view mirrors | 5 |
F40 | Engine control unit | 15 |
F41 | Solenoid valves on engine, electric fuel pump | 10 |
F42 | Pre-heating relay engine, electrically controlled cooling fan | 5 |
F43 | Body builder control unit BBM | 5 |
F44 | Voltage converter for radio/12 V outlet | 15 |
F45 | Voltage converter for 12 V outlet | 15 |
F46 | Rotating beacon | 15 |
F47 | ACC | 5 |
F48 | ABS/EBS, switch EBS | 5 |
F49 | Air suspension/A-ride | 3 |
F50 | Phone | 5 |
F51 | Hydraulically steered axle | 5 |
F52 | Air intake heating, relief relay radio position | 10 |
F53 | Illuminated sign on roof | 10 |
F54 | Dynafleet, FMS gateway | 10 |
F55 | Airbag, seat belt tensioner | 5 |
F56 | Free | 5 |
F57 | Control unit gear shifter/Retarder | 3 |
F58 | D+ short circuit relay, only ADR | 5 |
F59 | Reversing camera, Dynafleet | 5 |
F60 | Hydraulically steered axle | 5 |
F61 | Theft alarm, Volvo link (SAM), Folding rear view mirror arm, Japan | 5 |
F62 | Free | 15 |
F63 | Alcolock system | 10 |
F64 | Toll system | 10 |
F65 | Central lubrication system | 10 |
F66 | Sun roof | 10 |
F67 | Bunk lamps, reading lamps | 10 |
F68 | Refrigerator | 10 |
F69 | 12 Volt outlet | 10 |
F70 | ABS/EBS, trailer (kl. 15) | 5 |
F71 | Extra equipment | 10 |
F72 | Level adjustment system, headlamps | 5 |
F73 | Hydraulically steered axle | 5 |
F74 | Headlamp washer (high pressure) | 15 |
F75 | Electrically heated seats | 15 |
F76 | ADR D+ short circuit relay, Fan instrument panel | 5 |
F77 | 24 V Power outlet, instrument panel | 10 |
F78 | 24 V Power outlet, beside bun | 10 |
F79 | 12 V for TV | 10 |
F95 | Central locking | 10 |
F96 | Burglar alarm | 5 |
F97 | Parking heater | 15 |
LCM fuses
Fuse | Use | Ampere rating [A] |
1 | Direction Indicator lights trailer, Brake Lights and Headlight dipped beam, right side, Reversing Lights, Parking Lights rear | 25 |
2 | Headlight main beam left side, Fog Lights, Warning light, Warning signal | 25 |
3 | Brake Lights trailer and Direction Indicator lights rear, left side, Headlight main beam right side | 25 |
4 | Parking Lights trailer and Direction Indicator lights rear, right side, Brake Light left side | 25 |
5 | Reverse Lights trailer, Parking Lights front right side, Headlight dipped beam and Direction Indicator lights trailer, left side | 25 |
6 | Parking Lights trailer and Parking Lights front, left side, Direction Indicator lights front | 25 |
Fuses in the battery box
Fuse | Use | Ampere rating [A] |
1 | Tachograph | 5 |
2 | Main fuses F95–F97 | 20 |
3 | AdBlue system | 20 |
To superstructure
56 X. Fuses for superstructure
Fuse | Use | Ampere rating [A] |
1 | Kl.30, B+ | 15 |
2 | Kl.30, B+ | 15 |
3 | Kl.15, driving position | 15 |
4 | Kl.15, driving position | 15 |
5 | Kl.61, alternator | 10 |
6 | Free | 10 |
56 P. Fuses for superstructure (options)
Fuse | Use | Ampere rating [A] |
1 | Kl.30, B+ | 15 |
2 | Kl.30, B+ | 15 |
3 | Kl.30, B+ | 15 |
4 | Kl.30, B+ | 15 |
5 | Free | 10 |
6 | Free | 10 |
Relays for bodywork, in front of passenger seat
Location | Function |
37 | Parking lights |
38 | Pressure selection, dumper trailer |
39 | Free, for body builder |
40 | Free, for body builder |
41 | Free, for body builder |
42 | Spotlights |
43 | External engine start |
44 | Reversing light |
45 | Brake application (reverse lock) |
46 | Free, for body builder |
47 | Free, for body builder |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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