Mercury Mountaineer (2006 – 2010) Fuse Box Diagrams & Location
The Mercury Mountaineer (2006 – 2010) fuse box protects essential electrical systems and accessories throughout the vehicle. This guide covers fuse box locations, fuse assignments, ratings, and diagrams to help identify fuses for lighting, power windows, safety systems, and other electrical components.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse box is located under the instrument panel on the driver’s side.
Relay Box: These relays are located on either side of the passenger compartment fuse panel. Service should be performed by an authorized dealer.
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
| Fuse No. | Amp Rating | Protected Circuit |
|---|---|---|
| 1 | 20A | 2006–2007: Moonroof, Adjustable pedals, DSM, Memory lumbar motor 2008–2010: Moonroof, Adjustable pedals, Memory seats, Memory lumbar motor |
| 2 | 5A | 2006–2008: Microcontroller power (SJB) 2009–2010: Microcontroller power |
| 3 | 20A | 2006–2008: Radio2009: Radio, Navigation amplifier2010: Radio, Navigation amplifier, GPS module |
| 4 | 20A / 10A | 2006: OBD II connector (20A) 2007–2010: OBD II connector (10A) |
| 5 | 5A | 2006–2007: Moonroof 2008–2009: Moonroof, Door lock switch illumination, Rearview mirror with microphone 2010: Moonroof, Door lock switch illumination, Auto-dimming rearview mirror |
| 6 | 20A | 2006–2010: Liftglass release motor, Door unlock/lock |
| 7 | 15A | 2006–2010: Trailer stop/turn |
| 8 | 15A | 2006–2007: Ignition switch power, PATS 2008–2010: Ignition switch power, PATS, Cluster |
| 9 | 2A | 2006–2010: 6R TCM/PCM ignition RUN/START, Fuel pump relay |
| 10 | 5A | 2006–2010: Front wiper RUN/ACC relay in PDB |
| 11 | 5A | 2006–2010: Radio start |
| 12 | 5A | 2006–2010: Rear wiper motor RUN/ACC, Trailer battery charge relay in PDB, Radio |
| 13 | 15A | 2006–2007: Heated mirror, Rear defrost indicator 2008–2010: Heated mirror, Manual climate rear defrost indicator |
| 14 | 20A | 2006–2010: Horn |
| 15 | 10A | 2006–2010: Reverse lamps |
| 16 | 10A | 2006–2010: Trailer reverse lamps |
| 17 | 10A | 2006–2007: RCM, PAD lamp, OCS module 2008–2010: RCM, Passenger occupancy system |
| 18 | 10A | 2006–2009: Reverse park aid, IVD switch, IVD, AWD module, Heated seat switches, Compass, Electrochromatic mirror, AUX climate control2010: Reverse park aid, RSC switch, RSC, AWD module, Heated seat switches, Auxiliary climate control |
| 19 | — | 2006–2010: Not used |
| 20 | 10A | 2006–2009: Manual climate, DEATC, Brake shift 2010: Climate control system, Brake shift |
| 21 | — | 2006–2010: Not used |
| 22 | 15A | 2006–2010: Brake switch, Bi-color stop lamps, CHMSL/High-mounted brake lamp, All turn lamps |
| 23 | 15A | 2006: Power mirrors, Interior lamps, Puddle lamps, Battery saver, Instrument illumination, Homelink 2007–2010: Interior lamps, Puddle lamps, Battery saver, Instrument illumination, Homelink |
| 24 | 10A | 2006–2009: Cluster, Theft LED 2010: Cluster, Theft indicator light |
| 25 | 15A | 2006: Trailer park lamps, Trailer electronic brake module 2007–2010: Trailer tow park lamps |
| 26 | 15A | 2006–2010: License plate/rear park lamp, Front park lamps, Manual climate |
| 27 | 15A | 2006–2010: Tri-color stop lamps |
| 28 | 10A | 2006–2009: Manual/DEATC 2010: Climate controls |
| CB1 | 25A | 2006–2010: Windows |
| Relay | Function |
|---|---|
| Relay 1 | Delayed ACC (2006–2010) |
| Relay 2 | Rear defrost (2006 & 2007) |
| Relay 3 | Park lamps (2006 & 2007) |
| Relay 4 | RUN/START (2006 & 2007) |
Engine Compartment Fuse Box
| Fuse Location | Rating | Protected Circuits (Year Differences) |
|---|---|---|
| 1 | 50A | Battery Feed 2 (2006–2010) |
| 2 | 50A | Battery Feed 3 (2006–2010) |
| 3 | 50A | Battery Feed 1 (2006–2010) |
| 4 | 30A | Fuel Pump, Injectors (2006–2010) |
| 5 | 30A | Third Row Seat Left (2006–2010) |
| 6 | 40A | IVD Module (2006); ABS Pump (2007–2010) |
| 7 | 40A | Powertrain Control Module (PCM) (2006–2010) |
| 8 | 40A | Not Used (2006, 2008–2010); Heated Windshield Left (2007) |
| 9 | 40A | Not Used (2006, 2008–2010); Heated Windshield Right (2007) |
| 10 | 30A | Power Seat Right (2006–2010) |
| 11 | 30A | Starter (2006–2010) |
| 12 | 30A | Third Row Seat Right (2006–2010) |
| 13 | 30A | Trailer Tow Battery Charger (2006–2010) |
| 14 | 30A / 40A | Memory Seats / Non-Memory Seats (2006–2010) |
| 15 | 40A | Rear Defrost, Heated Mirrors (2006–2010) |
| 16 | 40A | Blower Motor (2006–2007); Front Blower Motor (2008–2010) |
| 17 | 30A | Trailer Electronic Brakes (2006–2010) |
| 18 | 30A | Auxiliary Blower Motor (2006–2010) |
| 19 | 30A | Running Boards (2006–2010) |
| 20 | 30A | Not Used (2006–2007); Front Wiper Motor (2008–2010) |
| 21 | 20A | Rear Power Point (2006–2010) |
| 22 | 20A | Subwoofer (2006–2010) |
| 23 | — | Not Used (2006–2010) |
| 24 | 10A | PCM Keep Alive Power, Canister Vent (2006–2010) |
| 25 | 20A | Front Power Point / Cigar Lighter (2006–2010) |
| 26 | 20A | AWD Module (2006–2010, 4.6L Engine Only) |
| 27 | 20A | 6R Transmission Module (2006–2010, 4.6L Engine Only) |
| 28 | 20A | Heated Seats (2006, 2008–2010); Heated Seats and Power Mirrors (2007) |
| 29 | 15A | Right Headlamp (2006–2010) |
| 30 | 25A | Rear Wiper (2006–2010) |
| 31 | 15A | Fog Lamps (2006–2010) |
| 32 | 5A | Not Used (2006); Power Mirrors (2007–2010) |
| 33 | 30A | IVD Module (2006); ABS Valve (2007–2010) |
| 34 | 15A | Left Headlamp (2006–2010) |
| 35 | 10A | A/C Clutch (2006–2010) |
| 36 | 20A | Not Used (2006–2007); Console Bin Power Point (2008–2010) |
| 37 | 30A | Front Wiper Motor (2006–2007); Driver Window Motor (2008–2010) |
| 38 | 15A | 5R Transmission (2006–2010, 4.0L Engine Only) |
| 39 | 15A | PCM Power (2006–2010) |
| 40 | 15A | Fan Clutch, PCV Valve, A/C Clutch Relay, GCC Fan (2006–2010) |
| 41 | 15A | SDARS/DVD (2006–2007); SDARS/DVD/SYNC (2008–2010) |
| 42 | 15A | Engine Sensors (2006–2010) |
| 43 | 15A | Coil on Plug (4.6L) / Coil Tower (4.0L) (2006–2010) |
| 44 | 15A | Injectors (2006–2010) |
| 45A | — | Not Used (2006–2010) |
| 45B | — | GCC Fan Relay (2006–2008); Not Used (2009–2010) |
| 46A | — | Not Used (2006–2010) |
| 46B | — | Not Used (2006–2010) |
| 49 | Relay | Fuel Pump Relay (2006–2010) |
| 50A | Relay | Fog Lamps Relay (2006–2010) |
| 50B | Relay | A/C Clutch Relay (2006–2010) |
| 51 | — | Not Used (2006–2010) |
| 52 | Diode | A/C Clutch Diode (2006–2008); Not Used (2009–2010) |
| 53 | Diode | Not Used (2006–2007); One Touch Integrated Start (OTIS) Diode (2008–2010) |
| 54 | Relay | Trailer Battery Charger Relay (2006–2010) |
| 55A | Relay | PCM Relay (2006–2010) |
| 55B | Relay | Front Wiper Relay (2006–2010) |
| 56A | Relay | Blower Relay (2006–2010) |
| 56B | Relay | Starter Relay (2006–2010) |
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