Mercury Mariner (2005 – 2007) Fuse Box Location & Diagrams
The Mercury Mariner (2005–2007) uses fuse boxes to protect essential electrical circuits and vehicle systems. This guide covers the fuse box locations and diagrams, including fuse ratings, assignments, and protected components to help identify the correct fuse during electrical troubleshooting and replacement.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse box is located on the passenger side of the center console, behind the cover.
Engine Compartment Fuse Box
The fuse box is located in the engine compartment (on the driver’s side).
Fuse Box Diagrams
Passenger Compartment Fuse Box
| Fuse/Relay Location | Fuse Amp Rating | Type | Description |
|---|---|---|---|
| 1 | 15A | Mini Fuse | Trailer tow park lamps (2005–2007) |
| 2 | — | — | Not used (2005–2007) |
| 3 | 15A | Mini Fuse | Front and rear park lamps (2005–2007) |
| 4 | 10A | Mini Fuse | Ignition switch (2005–2007) |
| 5 | 2A | Mini Fuse | Powertrain Control Module (PCM) relay, Fuel pump relay, Main fan relay, High/Low speed fan relay 2, PATS module (2005–2007) |
| 6 | 15A | Mini Fuse | Center High-Mounted Stop Lamp (CHMSL), Stop lamps, PCM, Anti-lock Brake System (ABS), Speed control, Brake On-Off switch (2005–2007) |
| 7 | 10A | Mini Fuse | Instrument cluster, Diagnostic connector, Power mirror switch, Radio (2005–2007) |
| 8 | 5A | Mini Fuse | Canister vent (2007) |
| 8 | — | — | Not used (2005–2006) |
| 9 | 30A | Cartridge Fuse | Power door locks, Power seats (2005–2007) |
| 10 | 15A | Mini Fuse | Heated mirrors (2005–2007) |
| 11 | 15A | Mini Fuse | Sunroof, Electrochromatic mirror, Compass (2005–2007) |
| 12 | 5A | Mini Fuse | Radio (2005–2007) |
| 13 | — | — | Not used (2005–2007) |
| 14 | — | — | Not used (2005–2007) |
| 15 | 30A | Cartridge Fuse | Power windows (2005–2007) |
| 16 | 15A | Mini Fuse | Subwoofer (2005–2007) |
| 17 | 15A | Mini Fuse | Low beams (2005–2007) |
| 18 | 10A | Mini Fuse | 4WD (2005–2007) |
| 19 | — | — | Not used (2005–2007) |
| 20 | 15A | Mini Fuse | Horn (2005–2007) |
| 21 | 10A | Mini Fuse | Rear wiper motor, Rear wiper washer (2005–2006) |
| 21 | 15A | Mini Fuse | Rear wiper motor, Rear wiper washer (2007) |
| 22 | 10A | Mini Fuse | Instrument cluster (2005–2007) |
| 23 | — | — | Not used (2005–2007) |
| 24 | 20A | Mini Fuse | Cigar lighter (2005–2007) |
| 25 | 20A | Mini Fuse | Front wiper motor, Front wiper washer (2005–2007) |
| 26 | 5A | Mini Fuse | Climate control system mode switch (2005–2007) |
| 27 | 5A | Mini Fuse | Canister vent, Speed control cancel switch (2005–2006) |
| 27 | 5A | Mini Fuse | Speed control cancel switch (2007) |
| 28 | 10A | Mini Fuse | Instrument cluster (2005–2007) |
| 29 | 10A | Mini Fuse | Reverse park aid (2005–2007) |
| 30 | — | — | Not used (2005–2007) |
| 31 | — | — | Not used (2005–2007) |
| 32 | 10A | Mini Fuse | Brake-Transmission shift lock (2005–2007) |
| 33 | 15A | Mini Fuse | Air bag module, Passenger Air Bag Deactivation (PAD) indicator lamp, Occupant Classification Sensor (OCS) (2005–2007) |
| 34 | 5A | Mini Fuse | ABS module, Evac and Fill, Speed control (2005–2007) |
| 35 | 5A | Mini Fuse | Heated seats module, 4WD (2005–2007) |
Engine Compartment Fuse Box
| Fuse/Relay Location | Fuse Amp Rating | Type | Description |
|---|---|---|---|
| 1 | — | — | Not used (2005–2007) |
| 2 | 25A | Mini Fuse | Headlamp power (2005–2007) |
| 3 | 25A | Mini Fuse | High beams, Turn signals, Interior lamps, Headlamp power (2005–2007) |
| 4 | 5A | Mini Fuse | Keep Alive Power (KA PWR) (2005–2007) |
| 5 | 15A | Mini Fuse | Heated Exhaust Gas Oxygen (HEGO) sensors (2005–2007) |
| 6 | 20A | Mini Fuse | Fuel pump (2005–2007) |
| 7 | 40A | Cartridge Fuse | RUN/ACC relay – Electrochromatic mirror, Cigar lighter, Front and rear wipers, Compass (2005–2007) |
| 8 | 30A | Cartridge Fuse | Powertrain Control Module (PCM), Injectors and coil (2005–2007) |
| 9 | 15A | Mini Fuse | Alternator (2005–2007) |
| 10 | 30A | Mini Fuse | Heated seats (2005–2007) |
| 11 | 10A | Mini Fuse | PCM (2005–2007) |
| 12 | 20A | Mini Fuse | Power point (2005–2007) |
| 13 | 20A | Mini Fuse | Fog lamps (2005–2007) |
| 14 | 15A | Mini Fuse | A/C clutch, A/C relay (2005–2007) |
| 15 | 30A | Mini Fuse | Anti-lock Brake System (ABS) solenoid (2005–2007) |
| 16 | 25A | Mini Fuse | I/P fuse panel (RUN/START) (2005–2007) |
| 17 | 50A | Cartridge Fuse | Ignition (main) (2005–2007) |
| 18 | 40A | Cartridge Fuse | Blower motor (2005–2007) |
| 19 | 40A | Cartridge Fuse | Accessory delay relay – Subwoofer and 4WD, Low beam (2005–2007) |
| 20 | 60A | Cartridge Fuse | Anti-lock Brake System (ABS) (2005–2007) |
| 21 | 40A | Cartridge Fuse | Horn, CHMSL, Cluster, Power locks and power seats (2005–2007) |
| 22 | 40A (I4) / 50A (V6) | Cartridge Fuse | Cooling fan (2005–2007) |
| 23 | 40A | Cartridge Fuse | Rear defroster, Park lamps relay (2005–2007) |
| 24 | 40A (I4) / 50A (V6) | Cartridge Fuse | High/Low speed fan (2005–2007) |
| 25 | — | — | Shunt (2005–2007) |
| R2 | — | Relay | PCM relay (2005–2007) |
| R3 | — | Relay | Fuel pump relay (2005–2007) |
| R4 | — | Relay | Cooling fan relay (2005–2007) |
| R5 | — | Relay | High/Low speed fan relay 1 (2005–2007) |
| R6 | — | Relay | Blower motor relay (2005–2007) |
| R7 | — | Relay | Starter relay (2005–2007) |
| R8 | — | Relay | High/Low speed fan relay 2 (2005–2007) |
| R9 | — | Relay | Fog lamps relay (2005–2007) |
| R10 | — | Relay | A/C relay (2005–2007) |
| D1 | — | Diode | Not used (2005–2007) |
| D2 | — | Diode | A/C diode (2005–2007) |
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