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JCB 4CX - fuse box diagram

avatar Jonathan Yarden Feb 16, 2021 · 5 min. read

In this article you will find a description of fuses and relays JCB, 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.

Year of production:

Fuse box

The relays and fuses are located in the side console underneath the cover.

JCB 4CX - fuse box diagram

No.
A
Function
Column “A”
1 10 Hydraulic auxiliary
2 5 Fuel pump solenoid (engine stop)
3 7.5 Direction indicators
4 7.5 Steer mode proximity switch
5 10 Gearbox control, Transmission
6 3 Gear select / Forward Reverse (machines from serial No. 933757)
7 5 Brake lights (machines up to serial No. 933756)
7 10 Transmission (machines from serial No. 933757)
8 3 4 wheel drive (automatic brakes) (machines up to serial No. 933756)
8 7.5 Brake lights (machines from serial No. 933757)
9 5 Left hand side lights
10 5 Right hand side lights
Column “B”
1 5 Instruments, Buzzer
2 15 Front horn, Front washer/wiper
3 7.5 Rear horn
4 15 Heated seat, Cigar lighter, Face level fan
5 10 Rear wiper/wash
6 10 Brake switch
7 5 Return to dig enable
8 25 Rear working lights
9 20 Headlights
10 25 Front working lights
Column “C”
1 7.5 Lights
2 15 Hazard light
3 10 Beacon, Interior light
4 5 Radio
5 20 Thermostart
6 30 Heater
7 3 Ignition relay coils
8 15 Main beam
9 3 Fog light
10 15 Dip beam
Relays
1 Ignition 1
2 Hammer
3 Auxiliary (jaw bucket)
4 Main lights
5 Engine run
6 Hydraulic speed control (HSC)
7 Buzzer
8 Buzzer
9 Ignition 2
10 Front working lights
11 Rear working lights
12 Direction indicator
13 Neutral start
14 Rear horn
15 Parking brake warning light
16 Air conditioning compressor
17 Parking brake

 

JCB 4CX - fuse box diagram

No.
Relays
FD1 Forward HI/LO
FD2 Forward
FE1 Reverse HI/LO
FE2 Reverse
FF1 Interlock
FF2 Drive
FG1 Blank
FG2 Transmission dump
FH1 Auto 2WD
FH2 4WB

 

JCB 4CX - fuse box diagram

No. Relays
FG1 Reverse Alarm
FG2 Transmission dump
FH1 2WB
FH2 Brake lights

 

JCB 4CX - fuse box diagram

No. A Function
1 30 Hazard warning lights, Beacon, Lights
2 50 Wash/Wipe, Transmission, Indicators
3 50 Work lights, Fog Lights, Brake lights
4 50 Ignition, Heater, Thermostart

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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