Scania 4 series is a truck produced with 2-, 3- or 4-axle versions with various power units in 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 and 2005. In this publication you will find a designation of the 4th generation Scania fuses and relays with boxes diagrams and their locations. Let’s highlight the fuse responsible for the cigarette lighter.
The purpose of fuses and relays in your Scania 4 series may differ from the one presented and depends on the year of manufacture and equipment level. Check the purpose with your diagram on the back of the protective cover or other technical documentation.
Fuse and relay box
The main fuse and relay box is located in the instrument panel, on the passenger side, behind the protective cover.
It has two parts. On the left are the fuses and relays of the main equipment (lighting, suspension, engine control, ABS, etc.). On the right, additional equipment (power take-off, autonomous heater, navigation, etc.) is connected to the fuses.
Diagarm
Assignment
- Mileage counter, tachograph, buzzer, ABS 10A diagnostics
- Flashing lights, speed limiter, axle load limiter 10A
- Reversing signals 20A
- Engine brake, white smoke limiter 10A
- Gearbox 10A
- ABS, brake signals 20A
- Suspended axle lift, differential lock, power take-off, pressure sensor 10A
- Screen wipers, washers 20A
- Buzzer, fan, air conditioner, temperature module 20A
- Air suspension, steered axles, retarder 10A
- Window regulator left side 20A
- Window regulator right side, fog lights 20A
- ABS trailer 30A
- Tachograph, odometer, seat 10A
- Interior lighting, center. lock, cigarette lighter 20A
- Diagnostics, local lighting 20A
- Radio equipment, seat 20A
- Relay valve ABS 20A
- Power supply to the engine control unit 20A
- EDC engine control unit, fuel interruption 10A
- EBS 30А
- Heated seats and mirrors 20A
- ABS control unit, trailer 5A
- Headlight adjustment, air dryer 20A
- Instrument panel lighting 10A
- Work lighting, rooftop lighting 20A
- Left side marker, upper marker lights 20A
- Right dimension 20A
- Front and rear fog lights 20A
- Left high beam 10A
- Right high beam, local lighting 10A
- Left low beam 10A
- Right low beam, headlight height adjustment 10A
- Additional heater, cab tipping 20A
- Heater, temperature control unit, refrigerator 10A
- Flame start, power take-off, cigarette lighter , 10A alarm
- Fuel heater 20A
- Flame start, fuel heater, seat heating 10A
- Battery heater, auth. chassis grease 10A
- Electric sunroof, FMS tripcomputer, 20A cellular
- Opticruise, block clock, alarm 10A
- EBS 20А
- Optional equipment 20A
- Filter heating, optional equipment 20A
- Additional equipment 10A
The fuse number 15, 20A, is responsible for the operation of the cigarette lighter.
Relay
| RP1 | Power supply (bus 15, power supply of fuses 1-13, 18,21,23) |
| RP2 | Power supply (bus 15, fuse supply 36.37) |
| RP3 | High and low beam headlights |
| RP4 | Power supply bus 61 (consumers with the engine running) |
| RP5 | Power supply bus 58 (parking lights, backlight) |
| RP6 | Wipers, intermittent operation |
| RP7 | Stop lights |
| RP8 | Additional headlights |
| RP9 | Electronic Engine Control (EDC) Power |
| RP10 | Buzzer |
| RP11 | Reversing lights |
| RP12 | Front fog lights |
| RP13 | Rear fog lights |
| RP14 | Diode block EDC |
| RP15 | Row shifting control |
| RP16 | ABS trailer |
| RP17 | Reduction of braking force for additional axle |
| RP18 | Depending on the version |
| RP19 | Interior heater fan |
| RP20 | Interior heater fan |
| RP21 | Additional headlights |
| RP22 | Engine brake (depending on version) |
| RP23 | White smoke limiter, starter lock (depending on version) |
| RP24 | Air conditioning |
| RP25 | Air conditioning |
| RP26 | Additional heater |
| RP27 | Additional heater |
| RP28 | Additional heater |
| RP29 | Differential lock, 6-way ABS (diagonal 1) |
| RP30 | Depending on the version, 6-channel ABS (diagonal 2) |
| RP31 | Depending on the version, 6-channel ABS diagnostic lamp |
| RP32 | Power take-off |
| RP33 | Fuel heater |
| RP34 | Reserve |