The second-generation Mercury Mariner was produced from 2008 to 2011. In this guide, you’ll find detailed fuse box diagrams for each model year, including 2008, 2009, 2010, and 2011. You’ll also learn where the fuse panels are located inside the vehicle and get a comprehensive overview of the function and layout of each fuse and relay.
Table of Contents
Cigar lighter (power outlet) fuses in the Mercury Mariner are the fuse #40 (Front power point) in the Passenger Compartment fuse box, and fuse #3 (Rear power point – center console) in the Engine Compartment Fuse Box.
Engine Compartment
| Fuse Number | Protected components | Fuse Amp |
|---|---|---|
| A | Electronic power steering module (EPAS) | 80 |
| B | Passenger compartment fuse panel (SPDJB) | 125 |
| 1 | Heated mirror | 15 |
| 2 | Rear defroster | 30 |
| 3 | Rear power point (center console) | 20 |
| 4 | 2008: Fuel pump (except Hybrid) | 20 |
| 4 | Hybrid: Electric vacuum pump | 40 |
| 5 | Powertrain Control Module (PCM) Keep Alive power, PCM relay (2009-2011), Canister vent (2009-2011), Transmission control module (Hybrid) | 10 |
| 6 | except Hybrid: Alternator | 15 |
| 7 | 2008: Reverse lamps | 10 |
| 7 | 2009-2011: Liftgate latch | 15 |
| 8 | Trailer tow parking lamps | 20 |
| 8 | Hybrid: Traction battery control module | 5 |
| 9 | Anti-lock Brake System (ABS) Hybrid: Brake control module | 50 |
| 10 | Front wipers | 30 |
| 11 | except Hybrid: Starter | 30 |
| 12 | Blower motor | 40 |
| 13 | A/C clutch | 10 |
| 14 | except Hybrid: Trailer tow turn lamps | 15 |
| 14 | Hybrid: Heater/Coolant pump | 10 |
| 15 | Hybrid: Traction Battery Control Module (TBCM) | 10 |
| 16 | Cooling fan 1 | 40 |
| 17 | Cooling fan 2 | 40 |
| 18 | except Hybrid: ABS solenoid | 20 |
| 18 | Hybrid: Brake control module solenoid | 50 |
| 19 | Power seats | 30 |
| 22 | 2009-2011: Fuel pump (except Hybrid) | 20 |
| 22 | Hybrid: Ignition coils | 15 |
| 23 | 2009-2011: Fuel injectors (except Hybrid) | 15 |
| 24 | 2008: PCM transmission (except Hybrid) Hybrid: Transmission control module | 10 |
| 25 | 2009-2011: Anti-lock Brake System (ABS) (except Hybrid) Hybrid: Traction battery control module, Thermal expansion valve | 5 |
| 26 | 2008: PCM mil (except Hybrid) | 10 |
| 26 | 2009-2011: Ignition coils (except Hybrid) | 15 |
| 26 | Hybrid: Fuel pump, Traction battery control module | 20 |
| 27 | 2008: PCM non-mil 2009-2011: PCM – general powertrain components malfunction indicator lamp | 10 |
| 28 | 2008: PCM (except Hybrid) Hybrid: Heated Exhaust Gas Oxygen (HEGO) sensor, PCM (mil-on — malfunction indicator lamp) | 15 |
| 28 | 2009-2011: PCM – emission related powertrain components malfunction indicator lamp (except Hybrid) | 20 |
| 29 | 2008: Ignition coils 2009-2011: PCM | 15 |
| 32 | Hybrid: A/C clutch diode | — |
| 33 | PCM diode | — |
| 34 | except Hybrid: Start diode | — |
| 35 | Reverse lamp relay, Speed control module (2008), Rear defrost relay, Run/start (2009-2011) | 10 |
| 36 | Not used | — |
| 37 | Not used | — |
| Relays | ||
| 20 | A/C clutch | |
| 21A | Rear defroster | |
| 21B | 2009-2011: Fuel pump Hybrid: Ignition | |
| 21C | Blower | |
| 21D | PCM | |
| 30 | Cooling fan 1 | |
| 30B | Starter Hybrid: Electric vacuum pump mechanical | |
| 30C | Cooling fan main | |
| 30D | Cooling fan 2 | |
| 31A | Reverse lamp | |
| 31B | 2008: Fuel pump | |
| 31C | except Hybrid: Trailer tow left turn Hybrid: Heater pump | |
| 31D | except Hybrid: Trailer tow right turn Hybrid: Coolant pump | |
| 31E | except Hybrid: Trailer tow park | |
| 31F | 2009-2011: Liftgate latch |
Additional Relay Box
(Hybrid)
| Fuse Number | Protected components | A |
|---|---|---|
| 1 | Not used | — |
| 2 | Not used | — |
| 3 | Not used | — |
| 4 | Vacuum pump monitor | 5 |
| 5 | Not used | — |
| 6 | Not used | — |
| Relay | Electric vacuum pump (solid state) |
Passenger Compartment
| Fuse Number | Protected components | Fuse Amp |
|---|---|---|
| 1 | 110V inverter | 30 |
| 2 | Brake On/Off switch | 15 |
| 3 | 2009-2011: SYNC_x0002_ module | 15 |
| 4 | 2009-2011: Moon roof | 30 |
| 5 | Keypad illumination, Brake Shift Interlock (BSI), Passenger compartment fuse panel | 10 |
| 6 | Turn signals, Stop lamps | 20 |
| 7 | Low beam headlamps (left) | 10 |
| 8 | Low beam headlamps (right) | 10 |
| 9 | Interior lights | 15 |
| 10 | Backlighting | 15 |
| 11 | Four wheel drive | 10 |
| 12 | Power mirror switch | 7.5 |
| 13 | 2008: Canister vent | 7.5 |
| 14 | FCIM (radio buttons), Satellite radio, Front display module, GPS module (2010-2011) | 10 |
| 15 | Climate control | 10 |
| 16 | Not used (spare) | 15 |
| 17 | All lock motor feeds, Liftgate release, Liftglass release | 20 |
| 18 | Heated seat | 20 |
| 19 | Rear wiper | 25 |
| 20 | Datalink | 15 |
| 21 | Fog lamps | 15 |
| 22 | Park lamps | 15 |
| 23 | High beam headlamps | 15 |
| 24 | Horn relay | 20 |
| 25 | Demand lamps | 10 |
| 26 | Instrument panel cluster | 10 |
| 27 | Ignition switch | 20 |
| 28 | Radio | 5 |
| 29 | Instrument panel cluster | 5 |
| 30 | 2008: Overdrive cancel | 5 |
| 31 | Restraints control module | 10 |
| 32 | 2010-2011: Rear video camera module | 10 |
| 33 | 2008: Speed control switch | 10 |
| 34 | 2008: Speed control deactivate switch, ABS | 5 |
| 35 | Four wheel drive, Electric power assist steering (EPAS), Park aid module, Active park assist module (2010-2011), 110V inverter module | 10 |
| 36 | Passive anti-theft system (PATS) transceiver | 5 |
| 37 | Climate control | 10 |
| 38 | Subwoofer/Amp (audiophile radio / premium radio) | 20 |
| 39 | Radio, Radio amplifier (navigation only (2010-2011)) | 20 |
| 40 | Front power point | 20 |
| 41 | Driver/passenger door lock switches, Automatic dimming mirror, Compass, Ambient lighting, Moon roof, Camera display in mirror | 15 |
| 42 | Not used (spare) | 10 |
| 43 | Rear wiper logic, Heated seats relay, Instrument cluster | 10 |
| 44 | Not used (spare) | 10 |
| 45 | Front wiper logic, Blower motor relay | 5 |
| 46 | Occupant classification system (OCS), Passenger airbag deactivation indicator (PADI) | 7.5 |
| 47 | Circuit Breaker: Power windows, Moon roof (2008) | 30 |
| Relay | ||
| 48 | Delayed accessory |
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Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.