Renault Magnum is a long-haul truck tractor that was produced in four generations from 1990 to 2014 with different engine capacities. The most popular were the Renault Magnum DXI engines with 440, 460 and 480 hp. In this publication, we will show a description of the Renault Magnum fuses and relays with block diagrams and their locations. We will note the fuse responsible for the cigarette lighter.

The design of the blocks and the purpose of the elements in them depends on the year of manufacture, generation and engine. Check the purpose with your description on the back of the protective cover or other technical documentation.

Renault Magnum fuse and relay block
The main fuse and relay block is located at the top of the instrument panel on the passenger side behind a protective cover.
Option 1
Photo – example


Fuse description
| 7-pin trailer plug socket “ABS/EBS” | F1 |
| Power supply for the “SERVICE” and “DANGER” indicator lamps | F1 |
| ABS/ASR control unit | F1 |
| ABS/ASR solenoid valve fuse (Front right / Rear left) | F1 |
| ABS/ASR solenoid valve fuse (Front left/Rear right) | F1 |
| ABS emergency protection fuse | F1 |
| electric retarder disconnection unit fuse | F1 |
| Parking lights right | F2 |
| Right side marker lights | F2 |
| Lanterns lanterns | F3 |
| Left side marker lights | F3 |
| Power supply for trailer parking lights | F4 |
| Backup +24 volts (for lighting) | F5 |
| Backup +24 volts (for lighting) | F6 |
| Instrument panel illumination | F6 |
| Switch lighting | F6 |
| Fog light (or lights) | F8 |
| Fog lights | F9 |
| Right dipped beam headlight | F10 |
| Left dipped beam headlight | F11 |
| Left high beam headlight | F12 |
| Right high beam headlight | F13 |
| Long-range spotlights | F14 |
| Wiper timing drive | F15 |
| Anti-theft device | F16 |
| Brake light switch under the brake pedal | F16 |
| Reversing lights | F16 |
| Emergency stop switch “TBV” (in RTMDR modification) | F16 |
| Instrument panel indicator power supply circuit | F16 |
| heated exterior rear-view mirrors | F16 |
| Air conditioner circuit | F18 |
| Roof vent drive motor | F20 |
| Backup power supply (after the main switch) | F21 |
| Autonomous heater “D1LCC” | F22 |
| Autonomous heater “D3LCC” (hair dryer) | F22 |
| Autonomous heater “Thermo 90” (wet) | F22 |
| Air conditioner circuit | F22 |
| Ventilation control device | F22 |
| footrest lighting fuse | F23 |
| Driver’s ceiling light | F23 |
| Sleeping area ceiling | F23 |
| Lower couch ceiling | F23 |
| Upper couch ceiling | F23 |
| Portable map reading lamp | F23 |
| Passenger window motor | F24 |
| Control tachograph clock | F25 |
| Sound alarm | F26 |
| Stop signal | F27 |
| ABS/ASR control unit | F28 |
| Pivoting rear-view mirror with defrosting, left | F29 |
| Pivoting rear-view mirror with defrosting, right | F29 |
| Control of the orientation of the exterior rear-view mirror(s) | F29 |
| Power supply of additional elements of the control tachograph | F30 |
| Spotlight adjustment drives | F30 |
| cigarette lighter fuse | F30 |
| 12 volt converter (telecommunication circuit) walkie-talkie | F30 |
| radio fuse | F30 |
| Wiper drive motor | F32 |
| windshield washer motor | F32 |
| headlight washer motor | F32 |
| diagnostic socket fuse | F33 |
| suspension control unit (6×2/6×4) | F33 |
| Turn signal switch | F34 |
| Powering the car radio memory | F34 |
| Programmable switch (remote control) for autonomous heater | F34 |
| Backup power (after starter lock contact | F35 |
| EBS control unit | F37 |
| Driver’s window lift motor | F38 |
| Backup power supply (after the main switch) | F40 |
| Dot matrix display | F42 |
| “TBV” control unit | F42 |
| Working spotlight (tractor) | F43 |
| Valve illumination | F43 |
| Central locking control unit | F45 |
| Electric latch left | F45 |
| Electric latch right | F45 |
| Engine preheating switch | F46 |
| Centralized lubrication system time relay | F46 |
| Dot matrix display | F46 |
| suspension computer (4×2) | F47 |
| suspension computer (6×2 / 6×4) | F47 |
| Suspension remote control unit | F47 |
| Rear axle air bag pressure sensor (6×2) | F47 |
| Self-setting axis time relay | F47 |
| computer “VMAC” | F48 |
| Exhaust brake solenoid valves “J” | F49 |
| Refrigerator | F50 |
| Heated driver’s seat | F51 |
| Heated passenger seat | F51 |
| Step-down transformer (for 12 volt outlet) | F51 |
| Socket for SAE | F51 |
| Backup power for video | F53 |
| Electric front sunshade | F54 |
| Electric side sun blinds | F54 |
| Backup power (after starter lock contact) | F55 |
| Emergency switch “TBV” (in the RTMDR modification | F56 |
| “TBV” control unit | F56 |
| EBS control unit | F60 |
Fuse F30 is responsible for the cigarette lighter.
Fuses can be installed separately, outside the unit:
- Cabin tipping pumps – F84 40 A10
- Trailer plug socket 7-pin “ABS/EBS” – F85 20 A3
Relay decoding
| Power relay after contact | RP1 |
| Power relay after contact | RP2 |
| Oil pressure switch | R4 |
| Parking light relay | R5 |
| Relay for additional comfort elements | R6 |
| Lighting relay | R8 |
| Fog light relay | R9 |
| Fog light relay | R10 |
| Headlight low beam relay | R11 |
| Headlight high beam relay | R12 |
| High beam headlight relay | R13 |
| Brake light relay | R14 |
| Backup relay | R17 |
| Electric retarder disconnection relay | R18 |
| Rearview mirror defroster relay | R20 |
| Brake pad relay | R26 |
| Exhaust brake relay “J” | R30 |
| Backup relay (for future connections) | R40 |
| Backup relay (for future connections) | R43 |
| Power relay of the control unit “VMAC” | R44 |
| Air conditioner compressor relay | R46 |
| Backup relay | R47 |
| Backup relay | R48 |
| Air conditioning relay | R49 |
| Headlight washer timing relay | RT53 |
| Relay starters | CE112 |
| Engine heating relay | CE20 |
| Relay for electric valves “ABS/ASR” (Front left/Rear right) | R15 |
| Relay for electric valves “ABS/ASR” (Front right/Rear left) | R16 |
| ABS emergency protection relay | R19 |
| Self-installing axle emergency shutdown relay. | R21 |
| Engine stop relay (when the cab tips over) | R23 |
| Cab rollover relay | RP45 |
Option 2


Purpose of fuses
| Main information display | F03 7.5A |
| Safety relay and cabin tilt permission | |
| Cab tilt motor power relay | |
| Main information display | F04 5A |
| Headlight washer pump motor | F05 30A |
| Main information display | F06 5A |
| Tachograph | |
| Vehicle control ECU | F07 5A |
| Main information display | F08 5А |
| Engine immobilizer ECU | |
| Alarm ECU | |
| Door central locking ECU | |
| Air production control ECU | |
| Bodybuilder by prior arrangement with ECU management | F09 5A |
| Air conditioner ECU | F10 30A |
| Hydraulic retarder ECU | F11 10A |
| Electric retarder ECU | |
| Gear shift ECU | F12 15A |
| Automatic transmission ECU | |
| Lighting and alarm control ECU | F13 20A |
| Wiper motor delay time relay | |
| Windshield washer pump motor | |
| Drive motor wipers | |
| Cigarette lighter | F14 15A |
| Car diagnostic socket | F15 5A |
| Connector for retrieving vehicle data | |
| Choice control | F16 10A |
| Inter-wheel differential lock warning lamp | |
| Rear wheel lock solenoid valve | |
| Power take-off mechanism activation solenoid valve No. 1 | |
| PTO engagement solenoid valve No. 2 | |
| PTO engagement solenoid valve No. 3 | |
| Center differential lock solenoid valve | |
| High beam headlight | F17 10A |
| Electric horn | F18 10A |
| Air horn | |
| Air conditioner ECU | F19 5A |
| Radio | F20 10A |
| Alarm ECU | |
| Door central locking ECU | |
| ABS/EBS end connector | F21 20A |
| One overhead light on the driver’s side | F22 10A |
| Single upper light on the front passenger side | |
| Right upper lighting (door) | |
| Driver reading light | |
| Front passenger reading light | |
| Upper lighting of the lower bed | |
| Left overhead lighting (door) | |
| Left top lighting (atmosphere) | |
| Right top lighting (atmosphere) | |
| Top double-tier overhead lighting | |
| Driver’s side lighting | |
| Stepped lighting for the front passenger | |
| Steering axle lock angle sensor | F23 5A |
| Steering axle lock angle sensor | |
| Air suspension ECU | |
| Steering axle ECU | |
| Fuel heater resistor #2 | F24 20A |
| Available power source (equipment in the road situation warning icon) | F25 10A |
| Available power source (lighting) | |
| Equipment in the unlocked position signal lamp | |
| Light, information, signal, lighting equipment | |
| 15-pin trailer connector | |
| Available power source (after ignition) | F26 15А |
| Driver’s door window lift motor | F27 20A |
| Front passenger door window lift motor | |
| EBS brake control system | F28 20A |
| Automatic transmission selector | F29 10A |
| On-board ECU control interface | |
| Lighting and alarm control ECU | F30 30A |
| Cabin temperature control system ECU | F31 20A |
| Alarm ECU | |
| Air/water auxiliary heater | |
| Air/air additional heater | |
| Air conditioner ECU | |
| Available power source (after main switch) | F32 10А |
| Cab tilt motor | F33 30A |
| On-board ECU control interface | F34 3A |
| Lighting and alarm control ECU | F36 10A |
| Voltage converter (24V / 12V – 15A) for audio communication system | F37 10A |
| Radio | |
| Additional signal lights signal lamp | F38 10A |
| Work spotlight | |
| Vehicle control ECU | F39 15А |
| Left rearview mirror defroster resistor. | |
| Right rearview mirror defroster resistor. | |
| Power relay for heated and folding rear-view mirror | |
| Windshield defrost control relay | |
| Engine control unit | F40 30A |
| Starter | |
| Start relays | |
| Air heating relay | |
| Engine brake No. 1 solenoid valve | |
| Exhaust brake solenoid valve | |
| Changing the range of the electric valve | |
| Splitter control solenoid valve | |
| Engine cooling fan speed control solenoid valve | |
| Starter | F41 15A |
| Start relays | |
| Engine brake No. 1 solenoid valve | |
| Engine brake No. 2 solenoid valve | |
| Exhaust brake solenoid valve | |
| Changing the range of the electric valve | |
| Splitter control solenoid valve | |
| Air heating relay | F42 10A |
| Engine cooling fan speed control solenoid valve | |
| 24 V socket | F43 15A |
| Automatic transmission diagnostic socket | |
| Rotating Lighthouse No. 1 | F46 15A |
| Rotating Lighthouse No. 2 | |
| Beacon power relay | |
| Air production control ECU | F47 7.5A |
| Brake hold activation control | F48 3A |
| EBS brake control system | |
| Air suspension ECU | F49 5A |
| Vehicle power management ECU (ADR) | |
| Steering axle ECU | F51 5A |
| Automatic transmission selector | F52 10A |
| Engine immobilizer ECU | |
| Cabin emergency stop control | |
| Vehicle control ECU | |
| After turning on the ignition, power relay No. 1 | |
| After turning on the ignition, power relay No. 2 | |
| After turning on the ignition, power relay No. 3 | |
| Accessory power relay #1 | |
| Accessory power relay #2 | |
| Generator circuit ground relay (ADR) | |
| Generator chain tension resistance | |
| Car diagnostic socket | |
| On-board control computer | F54 10A |
| Hydraulic retarder ECU | F57 10A |
| Cabin emergency stop control | F58 3А |
| Generator circuit ground relay (ADR) | |
| Preliminary preparation for on-board control (ECU) | F59 10A |
| Brake hold activation control | |
| Reverse light relay | |
| Voltage converter (24 V/12 V) for information technology package | F61 15A |
| 24 V socket | F63 15A |
| 15-pin trailer connector | F64 10A |
| Instrument lighting | F66 10A |
| Front lighting grille | |
| Roof ventilation electric motor | |
| Gear shift ECU | F67 10A |
| Automatic transmission ECU | |
| Voltage converter (24V / 12V – 10A) for audio communication system | F68 20A |
| Voltage converter (24V / 12V – 15A) for audio communication system | |
| Voltage converter (24V / 12V) -12 and 24 Volt built-in sockets | |
| Refrigerator compartment | |
| Refrigerator | |
| Additional 24 V socket | |
| ABS/EBS end connector | F70 10A |
| Available power source (after ignition) | F71 15A |
| High beam headlights | F72 10A |
| Low beam headlight | |
| Available power source (generator information, engine running) | F75 15A |
| Right heated seats | |
| Left heated seats | |
| Car service | F76 10A |
| Air/air additional heater | |
| Generator circuit ground relay (ADR) | |
| Auxiliary air/water heater solenoid valve | |
| Available power source (after main switch) | F77 15А |
| Lighting and alarm control | F90 3A |
| Rear fog light power relay | |
| Headlight high beam relay | |
| Fog light power relay | |
| Night light lighting relay switches | |
| Fog light off relay if high beam headlights are on | |
| Lantern of Enlightenment No. 1 | F91 10A |
| Road clearance lamp No. 2 | |
| Left front side / side lights | |
| Right side marker light No. 3 | |
| Right side marker lights No. 4 | |
| Right rear side / side lights | |
| Port side roof / side lights | |
| Externally mounted left side marker lights | |
| Vehicle power management ECU (ADR) | |
| Right front side / side lights | F92 10A |
| Left side lights #1 | |
| Marker lights LM No. 2 | |
| Marker lights LM No. 3 | |
| Marker lights LM No. 4 | |
| Left rear side / side lights | |
| Port side roof / side lights | |
| Glossy right side marker lights with anti-glare coating. | |
| Available power source (right rear parking light(s)) | F93 10A |
| 15-pin trailer connector | |
| Available power source (left rear parking light(s)) | F94 10A |
| 15-pin trailer connector | |
| Night lighting devices and controls | F96 3A |
| Available power source (night light) | F97 5A |
| High beam headlights | F100 15A |
| Fog lights | |
| High beam headlight | |
| Low beam headlight | |
| Left fog lamp | |
| Right fog lights | |
| Fog lights | F101 10A |
| Rear fog light | |
| Rear fog light | |
| 15-pin trailer connector | |
| Main information display | F102 10A |
| Right high beam high beam | |
| Left high beam high beam | |
| Available power source (feedback) | F103 10A |
| Reversible braking control | |
| Reversing lights | |
| Reversing lights | |
| Coign | |
| 15-pin trailer connector | |
| Left brake lights | F104 10A |
| Right brake lights | |
| 15-pin trailer connector | |
| Nitrogen oxide gas concentration sensor | F107 10A |
| AdBlue supply control pump module | |
| Engine water circuit bypass solenoid valve | |
| Air / additional heater | F108 20A |
Fuse number 14 at 15A is responsible for the cigarette lighter.
Relay designation
| After turning on the ignition, power relay No. 1 | R01 |
| After turning on the ignition, power relay No. 2 | R02 |
| After turning on the ignition, power relay No. 3 | R03 |
| Power relay for heated and folding rear-view mirror | R04 |
| Generator-controlled power relay (engine running) | R05 |
| Right and left side relay / side and parking light power relay | R06 |
| Night light lighting relay switches | R07 |
| Headlight high beam relay | R08 |
| Generator circuit ground relay (ADR) | R09 |
| Auxiliary heater power relay | R10 |
| Safety relay and cabin tilt permission | R11 |
| Right and left side relays / side light and marker light power relays (trailer and bodywork) | R12 |
| Brake light power relay | R13 |
| High beam high beam relay | R14 |
| Wiper motor delay time relay | R15 |
| Automatic transmission ECU power supply relay | R16 |
| Start relays | R17 |
| Rear fog light power relay | R18 |
| Power relay with air suspension | R19 |
| Vehicle and engine ECU power supply relay | R20 |
| Accessory power relay #1 | R21 |
| Accessory power relay #2 | R22 |
| Fog light power relay | R23 |
Some models have additional high-power fuses on the battery cover.