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Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercury Sable Premier & Luxury (2008, 2009).
Checking and Replacing Fuses
Fuses and circuit breakers protect your vehicle’s electrical system from overloading. If electrical components in the vehicle are not working, the system may have been overloaded and blown a fuse or tripped a circuit breaker. Check the appropriate fuses before replacing any electrical components. A blown fuse can be identified by a break in the wire within the fuse.
Notice
- Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
- Always disconnect the battery before servicing high current fuses.
- Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. This can severe wire damage and could start a fire.
- Never replace a broken fuse with anything other than a new fuse.
- Even after a fuse is replaced, it will continue to blow if the cause of the overload is not identified and corrected. If the fuse continues to blow, have the vehicle’s electrical system checked by your dealer or a qualified service technician.
Passenger Compartment Fuse Box Diagram
The fuse panel is located under the instrument panel to the left of the steering wheel.
| № | A | Protected components |
|---|---|---|
| 1 | 30 | Smart window motor |
| 2 | 15 | Brake on/off switch, High-mounted brake lamp |
| 3 | 15 | SDARS, Bluetooth, Family entertainment system (FES)/Rear seat control |
| 4 | 30 | Spare |
| 5 | 10 | SPDJB logic power |
| 6 | 20 | Turn signals |
| 7 | 10 | Low beam headlamps (left) |
| 8 | 10 | Low beam headlamps (right) |
| 9 | 15 | Interior lights, Cargo lamps |
| 10 | 15 | Backlighting, Puddle lamps |
| 11 | 10 | All wheel drive |
| 12 | 7.5 | Memory seat/mirror switches, Memory module |
| 13 | 5 | FEPS module |
| 14 | 10 | Analog clock |
| 15 | 10 | Climate control |
| 16 | 15 | Spare |
| 17 | 20 | All power lock motor feeds, Decklid release |
| 18 | 20 | Spare |
| 19 | 25 | Moon roof |
| 20 | 15 | OBDII connector |
| 21 | 15 | Fog lamps |
| 22 | 15 | Park lamps, License lamps |
| 23 | 15 | High beam headlamps |
| 24 | 20 | Horn relay |
| 25 | 10 | Demand lamps/interior lamps |
| 26 | 10 | Instrument panel cluster |
| 27 | 20 | Adjustable pedal switch |
| 28 | 5 | Radio, Radio start signal |
| 29 | 5 | Instrument panel cluster |
| 30 | 5 | Overdrive cancel switch |
| 31 | 10 | Spare |
| 32 | 10 | Driver seat motors, Memory module |
| 33 | 10 | Spare |
| 34 | 5 | AWD module |
| 35 | 10 | Steering rotation sensor, FEPS, Rear park assist, Heated seat modules |
| 36 | 5 | PATS module |
| 37 | 10 | Climate control |
| 38 | 20 | Subwoofer (Audiophile radio) |
| 39 | 20 | Radio |
| 40 | 20 | Spare |
| 41 | 15 | Moon roof, Front lock switches, Radio, EC Mirror with compass (with and without microphone) |
| 42 | 10 | Spare |
| 43 | 10 | Spare |
| 44 | 10 | Spare |
| 45 | 5 | Relay coils: PDB, Auxiliary A/C, Front and rear wipers, Front blower motor |
| 46 | 7.5 | Occupant Classification Sensor (OCS), Passenger Airbag Deactivation Indicator (PADI) |
| 47 | 30 | Circuit Breaker: Power windows |
| 48 | Delayed accessory | |
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Engine Compartment Fuse Box Diagram
The power distribution box is located in the engine compartment. The power distribution box contains high-current fuses that protect your vehicle’s main electrical systems from overloads.
| № | A | Protected components |
|---|---|---|
| 1 | 80 | SPDJB power |
| 2 | 80 | SPDJB power |
| 3 | 30 | Front wipers |
| 4 | - | - |
| 5 | 20 | Spare |
| 6 | - | - |
| 7 | 50 | Engine cooling fan |
| 8 | - | - |
| 9 | 40 | Anti-lock Brake System (ABS)/AdvanceTrac pump |
| 10 | 30 | Starter |
| 11 | 50 | Powertrain Control Module (PCM) relay |
| 12 | 20 | ABS/AdvanceTrac valve |
| 13 | 20 | Power point (instrument panel) |
| 14 | 20 | Power point (2nd row) |
| 15 | 20 | Spare |
| 16 | 20 | Power point (console) |
| 17 | 10 | Alternator |
| 18 | - | - |
| 19 | - | - |
| 20 | 40 | Rear defroster |
| 21 | 30 | Power seat motors (passenger) |
| 22 | 20 | Heated seat module |
| 23 | 10 | PCM Keep alive power, Canister vent |
| 24 | 10 | A/C clutch relay |
| 25 | 25 | Spare |
| 26 | 20 | Backup relay |
| 27 | 15 | Fuel relay (Fuel pump driver module, Fuel pump) |
| 28 | - | - |
| 29 | 30 | Spare |
| 30 | - | - |
| 31 | 30 | 2008: Compass, Automatic dimming rear view mirror |
| 32 | 30 | 2008: Driver seat motors, Memory module |
| 33 | 20 | Ignition switch (to SJB) |
| 34 | - | - |
| 35 | 40 | Front A/C blower motor |
| 38 | 10 | IVD, Yaw rate sensor |
| 39 | 10 | Fuel diode, PCM |
| 40 | - | - |
| 45 | 10 | Speed control deactivate switch, Mass air flow sensor, Inline module VPWR2 |
| 46 | 10 | A/C clutch relay, VPWR3 |
| 47 | 15 | PCM VPWR1 |
| 48 | 15 | PCM VPWR4 |
| 49 | 15 | Heated mirrors |
| 36 | One-touch start | |
| 37 | Fuel pump | |
| 41 | A/C clutch | |
| 42 | Fuel pump | |
| 43 | Backup | |
| 44 | - | |
| 50 | PCM relay | |
| 51 | - | |
| 52 | - | |
| 53 | Rear defrost | |
| 54 | Blower motor | |
| 55 | Starter | |
| 56 | - | |
| 57 | Front wiper | |
| 58 | - | |
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