We consider fuses and relays in the Jeep Grand Cherokee WJ – 1998, 1999, 2000, 2001, 2002, 2003, 2004.
Jeep Grand Cherokee WJ Cabin Fuse Box Diagram
Description
| No. | A | Purpose |
| 1 | — | — |
| 2 | — | — |
| 3 | 10 | Left headlight (high beam) |
| 4 | 15 | Hazard warning lights and turn signals relay |
| 5 | 25 | Audio system, amplifier |
| 6 | 15 | Parking light relay (parking light, license plate light, trailer, headlight corrector) |
| 7 | 10 | Body Control Module (BCM), Engine Compartment Light, Immobilizer, Automatic High Beam Control, Anti-Theft Alarm, Keyless Entry, Automatic Climate Control |
| 8 | 15 | Rear wiper, interior lighting, door lighting, glove box lighting, luggage compartment lighting, door handle lighting, trip computer, power window in the tailgate, anti-theft system, lighting in the sun visors |
| 9 | 20 | Front socket, rear socket, socket |
| 10 | 20 | Pedal Block Adjustment System (?-’04) |
| 11 | 10 | Automatic climate control (AZC), mechanical climate control (MTC) |
| 12 | 10 | Fuel Pump Relay, Engine Control Module (Automatic Shut Down) Relay, 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 valve (MTC), gearbox (4.7L), park/neutral position switch (4.0L, 3.1L TD), heated seats |
| 21 | 10 | Gasoline: A/C Compressor Clutch Relay, EVAP System, Shift Lock |
| 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 Light Relay, Body Control Module (BCM) |
| 25 | 20 | Sunroof Relay, Body Control Module (BCM) |
| 26 | 15 | Cigarette 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 | ||
| C1 | 20 | Front Wiper, Wiper Relay (On/Off) (Wiper Relay (Speed)) |
| C2 | 20 | Electric seats |
| Relay | ||
| R1 | Low beam / daytime running lights | |
| R2 | Cigarette lighter | |
| R3 | Hazard warning lights and direction indicators | |
| R4 | Rear window heating | |
| R5 | Rear fog light | |
| R6 | Low beam | |
| R7 | High beam | |
| R8 | Luke | |
| R9 | — | |
| R10 | Front fog light | |
| R11 | — | |
| R12 | Side light | |
| R13 | — | |
| R14 | — | |
Jeep Grand Cherokee WJ Under Hood Fuse Box Diagram
Description
| No. | A | Purpose |
| 1 | 40 | Heater (MTC), heater control unit (AZC) |
| 2 | 40 | Rear window defroster relay (rear window defroster, fuses (passenger compartment fuse box): “11”), cigarette lighter relay (trailer, fuses (passenger compartment fuse box): “26”) |
| 3 | 50 | High beam relay (fuses (passenger compartment fuse box): “3”, “16”), low beam relay (fuses (passenger compartment fuse box): “14”, “15”) or low beam/daytime running light relay (fuses (passenger compartment fuse box): “14”, “15”), fuses (passenger compartment 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 | Petrol: Engine control unit relay (ignition coils, capacitor, fuses (fuse box in the engine compartment): “16”, “26”) |
| 50 | Diesel: Glow Plug Relay #1 (Glow Plugs: #1, 3, 5) | |
| 7 | 50 | Fuses (passenger compartment fuse box): “23”, “24”, “25”, “27”, “C2” |
| 8 | 40 | Starter relay, ignition switch (fuses (passenger compartment 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 | Window lifters, fuses (fuse box in the passenger compartment): “18” |
| 13 | 30 | Diesel: Engine control unit relay (engine control unit, powertrain control unit, fuses (fuse box in the engine compartment): “16”, “26”) |
| 14 | 40 | Ignition switch (fuses (passenger compartment fuse box): “19”, “20”, “31”, “33”) |
| 15 | 50 | Fuses (passenger compartment fuse box): “5”, “7”, “8”, “9” |
| 16 | 15 | Petrol (’01): Oxygen Sensors |
| 10 | Gasoline (’99-’00): Oxygen Sensors | |
| 10 | Diesel: A/C Compressor Clutch Relay, Glow Plug Relay #1, Glow Plug Relay #2, EGR | |
| 17 | 20 | Petrol (’99-’00): Oxygen Sensor Relay |
| 18 | 15 | Horn relay |
| 19 | 10 | Gasoline: Powertrain Control Unit |
| 20 | — | — |
| 21 | 15 | Air Conditioning Compressor Clutch Relay |
| 22 | — | — |
| 23 | — | — |
| 24 | 20 | Petrol: Fuel Pump Relay |
| 15 | Diesel: Powertrain control unit, gearbox control relay | |
| 25 | 20 | ABS |
| 26 | 15 | Gasoline: Injectors |
| 15 | Diesel: Pump-injectors | |
| 27 | — | — |
| 28 | 15 | 4.0L: Transmission Solenoid |
| Relay | ||
| R1 | Gasoline: Fuel Pump | |
| Diesel: Windscreen wiper (on/off) | ||
| R2 | Gasoline: Starter | |
| Diesel: Windscreen wiper (speed) | ||
| R3 | Gasoline: Gearbox | |
| Diesel: Fuel heater | ||
| R4 | Petrol: Windscreen wiper (on/off) | |
| Diesel: Gearbox | ||
| R5 | Gasoline: Windscreen wiper (speed) | |
| Diesel: Starter | ||
| R6 | Gasoline: Oxygen Sensor (Lower) | |
| R7 | Gasoline: Oxygen Sensor (Upper) | |
| R8 | Air conditioning compressor clutch | |
| R9 | Sound signal | |
| R10 | Engine control unit | |
| R11 | Diesel: Glow Plugs (No. 1) | |
| R12 | Diesel: Glow Plugs (No. 2) | |