Table of Contents
Most electrical power supply circuits in this American crossover are protected by fuses. High-current consumers are connected via relays. These protective elements are housed in distribution boxes located in the engine compartment and the passenger compartment.
The information provided in the diagrams applies to the third-generation Ford Explorer (U152) for the 2001, 2002, 2003, 2004, and 2005 model years.
Engine Compartment
There are two fuse blocks located in this area.
Fuse Box
Located near the battery on the right side of the engine compartment.
General view.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| 1 | PJB (Passenger Junction Box) | 60 |
| 2 | BSM (Body Security Module) | 30 |
| 3 | Pusher cooling fan (GCC specs, 2001-2002; export) | 20 |
| 4 | Rear window defroster | 30 |
| 5 | ABS (pump) | 40 |
| 6 | Accessory delay circuit breaker, power windows (2004-2005), audio system (2004-2005) | 60 |
| 7 | Power outlet #2 | 20 |
| 8 | 4WD system (2004-2005) | 30 |
| 9 | Power outlet #1 | 20 |
| 10 | ABS (valves) | 30 |
| 11 | Powertrain Control Module (PTEC) (2001-2003), Powertrain Control Module (PCM) (2004-2005) | 40 |
| 12 | Ignition relay, starter relay | 50 |
| 13 | Trailer battery charge, trailer turn signals | 40 |
| 14 | Daytime Running Lights (DRL) (Canada), fog lights (2001-2002; export) | 10 |
| 15 | Keep-Alive Power (KAPWR) memory module (2001-2002), memory module (PCM / DEATC / instrument cluster) (2003-2005), door courtesy lights (2003-2005) | 15 |
| 16 | Headlight switch (2001-2003), fog light disable (2003), parking lights (2004-2005), front fog light relay (2004-2005) | 15 |
| 17 | 4WD system (V-BATT 2) (2001-2003) | 20 |
| 4WD system (V-BATT 2) (2004-2005) | 5 | |
| 18 | 4WD system (V-BATT 1) | 20 |
| 19 | High beam relay | 20 |
| 20 | Trailer electric brake controller | 30 |
| 21 | Front windshield wipers | 30 |
| 22 | Low beams | 20 |
| 23 | Ignition switch, Powertrain Control Module (PCM) diode (2004-2005) | 30 |
| 24 | Rear fog lights (2001-2002; export) | 20 |
| 25 | Brake On-Off (BOO) switch (2004-2005) | 15 |
| 26 | Fuel pump (2001-2003) | 15 |
| Fuel pump (2004-2005) | 20 | |
| 27 | Trailer parking lights, trailer reverse lights | 20 |
| 28 | Horn relay | 20 |
| 29 | PJB (Passenger Junction Box) | 60 |
| 30 | Rear window wiper | 20 |
| 31 | Not used | - |
| 32 | Not used | - |
| 33 | Auxiliary heater | 30 |
| 34 | Power seats, power adjustable pedals | 30 |
| 35 | Rear power outlet (2001-2002) | 20 |
| 36 | HVAC blower motor | 40 |
| 37 | A/C compressor clutch, transmission | 15 |
| 38 | Ignition coils (2001-2003), Heated Exhaust Gas Oxygen (HEGO) sensor (2004-2005), Vapor Management Valve (VMV) (2004-2005), Catalyst Monitor Sensor (CMS) (2004-2005), EGR System Module (ESM) (2004-2005), Canister Vent Solenoid (CVS) (2004-2005) | 15 |
| 39 | Fuel injectors, fuel pump relay | 15 |
| 40 | Powertrain Control Module (PTEC) power (2001-2003), Powertrain Control Module (PCM) power (2004-2005) | 15 |
| 41 | Heated Exhaust Gas Oxygen (HEGO) sensor (2001-2003), Vapor Management Valve (VMV) (2001-2003), Catalyst Monitor Sensor (CMS) (2001-2003), Powertrain Control Module (2001-2003), Ignition coils (2004-2005; 4.6L), Ignition coil block (2004-2005; 4.0L) | 15 |
| 42 | Right low beam | 10 |
| 43 | Left low beam | 10 |
| 44 | Front fog lights | 15 |
| 45 | Brake pressure switch (2001-2002) | 5 |
| 45 | Brake pressure switch (ABS) (2003-2005) | 2 |
| 46 | High beams | 20 |
| 62 | Circuit breaker: Accessory delay (2001-2002), power windows (2003-2005) | 30 |
| Relays | ||
| 47 | Horn | |
| 48 | Fuel pump | |
| 49 | High beams | |
| 50 | Fog lights | |
| 51 | Daytime Running Lights (DRL) (Canada) | |
| 52 | A/C compressor clutch | |
| 53 | Trailer right turn signal | |
| 54 | Trailer left turn signal | |
| 55 | HVAC blower motor | |
| 56 | Starter | |
| 57 | Powertrain Control Module (PTEC / PCM) | |
| 58 | Ignition | |
| 59 | Parking brake or Daytime Running Lights (DRL) (Canada) | |
| Diodes | ||
| 60 | Powertrain Control Module (PCM) diode | |
| 61 | A/C compressor clutch diode | |
Relay Box
Located in the fender well.
| Diagram | |
|---|---|
|
|
| No. | Description |
| 64 | Trailer tow package (left turn) |
| 65 | Trailer tow package (right turn) |
| 66 | Not used |
Passenger Compartment
Fuse Box
Located on the driver's side under the dashboard; several relay modules are mounted on the reverse side.
General view.
| Main Passenger Compartment Fuse Panel Diagram — Ford Explorer Gen 3 | ||
|---|---|---|
|
||
| No. | Description | A |
| 1 | Power mirror switch, power antenna, seat memory module | 30 |
| 2 | Power folding mirrors, heated seats | 20 |
| 3 | Radio, amplifier, power antenna | 20 |
| 4 | Digital Transmission Range (DTR) sensor | 5 |
| 5 | Turn signal / hazard flasher relay coil | 15 |
| 6 | Right horn | 10 |
| 7 | Heated mirrors | 15 |
| 8 | Windshield and rear window washer pump relay coils, windshield wiper switch | 30 |
| 9 | Rear window wiper relay coil and contact | 15 |
| 10 | Rear window defroster relay coil, heated seat module, blend door actuator, A/C compressor clutch relay contact | 10 |
| 11 | Not used (spare) | - |
| 12 | Fog light switch, 4WD module | 5 |
| 13 | Overdrive cancel switch, Generic Electronic Module (GEM), alternative fuel sensor | 5 |
| 14 | Passive Anti-Theft System (PATS) module | 5 |
| 15 | 4WD module, memory seat disable | 5 |
| 16 | Power mirrors, Restraint Control Module (RCM) (horn), manual climate control | 15 |
| 17 | Accessory delay relay coil, battery saver, interior lights | 15 |
| 18 | Left horn | 10 |
| 19 | Not used (spare) | - |
| 20 | Memory module, GEM | 5 |
| 21 | Instrument cluster, compass, flasher relay coil | 5 |
| 22 | Not used (spare) | - |
| 23 | Brake pedal position switch | 15 |
| 24 | Cigarette lighter, OBD-II data link connector | 15 |
| 25 | Mode/blend door actuator, auxiliary climate control, trailer tow battery charge | 5 |
| 26 | Parking assist, brake shift interlock, parking light relay coil | 7.5 |
| 27 | Electrochromic rearview mirror, Restraint Control Module (RCM), Digital Transmission Range (DTR) sensor (reverse lights) | 7.5 |
| 28 | Airbag diagnostic module | 10 |
| 29 | 4WD module, GEM signal, Restraint Control Module (RCM), power sunroof | 5 |
| 30 | Daytime Running Lights (DRL), keyless entry remote solenoid, Dual Electronic Automatic Temperature Control (DEATC) module | 5 |
| Relays on the Reverse Side of the Panel | ||
|
||
| No. | Description | |
| 1 | Flasher relay | |
| 2 | Rear window defroster | |
| 3 | Accessory delay relay | |
| 4 | Windshield washer pump | |
| 5 | Battery saver | |
| 6 | Rear window washer pump | |
| 7 | Interior lights | |
Auxiliary Relay Box
An additional relay box is located in the passenger compartment on the passenger side, positioned behind the rear quarter interior trim panel. The trim panel must be removed to access this module.
| Auxiliary Passenger Compartment Relay Box Diagram | |
|---|---|
|
|
| No. | Description |
| 14 | Rear fog lights |
| 15 | Trailer reverse lights |
| 16 | Not used |
| 17 | Rear window wiper |
| 18 | Trailer brake lights |
| 19 | Trailer parking lights |
| 20 | Trailer battery charge |
| 21 | Not used |
| 22 | Mirror puddle lights |
| 23 | Not used |
| Diodes | |
| 3 | Not used |
| 4 | Not used |