We are looking at the fuses and relays in the Jeep Grand Cherokee WJ – 1998, 1999, 2000, 2001, 2002, 2003, 2004 models.
Jeep Grand Cherokee WJ interior fuse box diagram
Description
| A | Goal | |
| 1 | — | — |
| 2 | — | — |
| 3 | 10 | Left headlight (high beam) |
| 4 | 15 | Hazard warning and turn signal relay |
| 5 | 25 | Audio system, amplifier |
| 6 | 15 | Side light relay (side light, license plate light, trailer, headlight range control) |
| 7 | 10 | Body Control Module (BCM), engine compartment lighting, immobilizer, automatic high beam control, anti-theft alarm, keyless entry, automatic climate control |
| 8 | 15 | Rear wiper, interior lighting, door lighting, glove compartment lighting, luggage compartment lighting, door handle lighting, trip computer, electric windows in the rear doors, anti-theft system, sun visor lighting |
| 9 | 20 | Front socket, rear socket, socket |
| 10 | 20 | Pedal unit adjustment system (?-’04) |
| 11 | 10 | Automatic climate control (AZC), mechanical climate control (MTC) |
| 12 | 10 | Fuel pump relay, engine control module relay (automatic shutdown), powertrain control module, transmission control relay (4.7L) |
| 13 | — | — |
| 14 | 10 | Left headlight (low beam) |
| 15 | 10 | Right headlight (low beam) |
| 16 | 10 | Right headlight (high beam) |
| 17 | 10 | Diagnostic connector, instrument cluster |
| 18 | 20 | Brake light relay (trailer), electric brake system (’99-’01-?) |
| 30 | Brake light relay (trailer), electric brake system (?-’04) | |
| 19 | 10 | ABS |
| 20 | 10 | Instrument cluster, automatic climate control (AZC), manual climate control (MTC), temperature control valve (MTC), transmission (4.7L), park/neutral switch (4.0L, 3.1L TD), heated seats |
| 21 | 10 | Gasoline: A/C Compressor Clutch Relay, Evaporative Emission (EVAP) System, Gear Shift Lockout |
| 10 | Diesel: Fuel preheating relay, engine control unit, gear selector lock | |
| 22 | 10 | Body Control Module (BCM), instrument cluster, immobilizer, trip computer, electrochromic rearview mirror, anti-theft system |
| 23 | 15 | Brake light switch |
| 24 | 15 | Front fog lamp relay, body control module (BCM) |
| 25 | 20 | Sunroof relay, body control module (BCM) |
| 26 | 15 | Lighter |
| 27 | 15 | Rear fog light relay |
| 28 | 10 | Body Control Module (BCM) |
| 29 | 10 | Cigarette lighter relay, right combination switch |
| 30 | 15 | Audio system |
| 31 | 10 | Starter Relay, Transmission Control Unit (4.7L) |
| 32 | 10 | Airbag control unit |
| 33 | 10 | Airbag control unit |
| Automatic switch | ||
| S1 | 20 | Front wiper, wiper relay (on/off) (wiper relay (speed)) |
| C2 | 20 | Electric seats |
| Relay | ||
| R1 | Low beam / daytime running lights | |
| P2 | Lighter | |
| R3 | Hazard warning lights and turn signals | |
| P4 | Heated rear window | |
| P5 | Rear fog light | |
| P6 | Low beam | |
| P7 | High beam | |
| P8 | Luka | |
| R9 | — | |
| R10 | Front fog light | |
| R11 | — | |
| R12 | Side light | |
| R13 | — | |
| R14 | — | |
Jeep Grand Cherokee WJ underhood fuse box diagram
Description
| A | Goal | |
| 1 | 40 | Heater (MTC), heater control unit (AZC) |
| 2 | 40 | Rear window heating relay (rear window heating, fuses (interior fuse box): “11”), cigarette lighter relay (trailer, fuses (interior fuse box): “26”) |
| 3 | 50 | High beam relay (fuses (interior fuse box): “3”, “16”), low beam relay (fuses (interior fuse box): “14”, “15”) or low beam/daytime running light relay (fuses (interior fuse box): “14”, “15”), fuses (interior fuse box): “4”, “5”, “6”, “11”, “17” |
| 4 | 40 | ABS |
| 5 | 30 | Gasoline: Transmission Control Relay, Transmission Control Module (4.7L), Transmission Solenoid (4.0L), Transmission Solenoid/TRS (4.7L) |
| 6 | 30 | Gasoline: Engine control unit relay (ignition coils, capacitor, fuses (engine compartment fuse block): “16”, “26”) |
| 50 | Diesel: Glow Plug Relay #1 (Glow Plugs: #1, 3, 5) | |
| 7 | 50 | Fuses (interior fuse box): “23”, “24”, “25”, “27”, “C2” |
| 8 | 40 | Starter relay, ignition switch (fuses (interior fuse box): “12”, “21”, “22”, “28”, “29”, “30”, “32”, “C1”) |
| 9 | 20 | Diesel: Fuel heating relay |
| 10 | 40 | 4.0L: Cooling Fan Relay |
| 40 | Diesel: Cooling fan relay | |
| 11 | 50 | Diesel: Glow plug relay #2 (Glow plugs: #2, 4) |
| 12 | 50 | Power windows, fuses (interior fuse box): “18” |
| 13 | 30 | Diesel: Engine control unit relay (engine control unit, powertrain control unit, fuses (engine compartment fuse block): “16”, “26”) |
| 14 | 40 | Ignition switch (fuses (passenger compartment fuse box): “19”, “20”, “31”, “33”) |
| 15 | 50 | Fuses (interior fuse box): “5”, “7”, “8”, “9” |
| 16 | 15 | Gasoline (’01): Oxygen Sensors |
| 10 | Gasoline (’99-’00): Oxygen sensors | |
| 10 | Diesel: air conditioning compressor clutch relay, glow plug relay #1, glow plug relay #2, exhaust gas recirculation system | |
| 17 | 20 | Gasoline (’99-’00): Oxygen sensor relay |
| 18 | 15 | Horn relay |
| 19 | 10 | Gasoline: Powertrain control unit |
| 20 | — | — |
| 21 | 15 | Air conditioner compressor clutch relay |
| 22 | — | — |
| 23 | — | — |
| 24 | 20 | Petrol: Fuel pump relay |
| 15 | Diesel: Powertrain control unit, transmission control relay | |
| 25 | 20 | ABS |
| 26 | 15 | Gasoline: Injectors |
| 15 | Diesel: pump-injectors | |
| 27 | — | — |
| 28 | 15 | 4.0L: Соленоїд радиатор питания |
| Relay | ||
| R1 | Gasoline: Fuel pump | |
| Diesel: Windshield wiper (on/off) | ||
| P2 | Gasoline: Starter | |
| Diesel: Wiper (speed) | ||
| R3 | Gasoline: Transmission | |
| Diesel: Fuel heater | ||
| P4 | Petrol: Windshield wiper (on/off) | |
| Diesel: Gearbox | ||
| P5 | Gasoline: Wiper (speed) | |
| Diesel: Starter | ||
| P6 | Gasoline: Oxygen sensor (lower) | |
| P7 | Gasoline: Oxygen sensor (upper) | |
| P8 | Air conditioner compressor clutch | |
| R9 | Sound signal | |
| R10 | Engine control unit | |
| R11 | Diesel: Glow plugs (No. 1) | |
| R12 | Diesel: Glow plugs (No. 2) | |
Jeep Grand Cherokee Fuses and Relays. Jeep Grand Cherokee Fuse and Relay Diagram