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Fuse box diagram (fuse layout), location, and assignment of fuses and relays Lincoln MKZ and MKZ Hybrid (2010, 2011, 2012).
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, a fuse may have blown. Check the appropriate fuses before replacing any electrical components.
Look carefully at the fuse – a broken wire within the fuse identifies blown fuses. If you are not sure or if it is too dark to see, try replacing the suspected fuse with one of the same value that you know is good.
In case if you do not have a spare fuse, in an emergency you can pull out fuses, which may be dispensable for normal driving (for example, audio system, cigarette lighter, OBD, seat heater, and the like), and use it if its amperage rating is the same.
Notice
- Always switch off the ignition system and the affected electrical circuit before replacing a fuse.
- Always disconnect the battery before servicing high current fuses.
- Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse, even as a temporary fix. This can cause extensive damage or even fire.
- If the replaced fuses blows again – contact a qualified and equipped service center.
Passenger Compartment Fuse Box Diagram
The fuse panel is located below and to the left of the steering wheel by the brake pedal. Remove the panel cover to access the fuses. To remove a fuse use the fuse puller tool provided on the fuse panel cover.
| № | A | Circuit Protected |
|---|---|---|
| 1 | 30 | Driver smart window motor |
| 2 | 15 | Brake on/off switch, Center high-mounted stop lamp |
| 3 | 15 | Except Hybrid: - (Spare) |
| Hybrid: HEV battery fan | ||
| 4 | 30 | Passenger front smart window motor |
| 5 | 10 | Keypad illumination, Brake shift interlock |
| 6 | 20 | Turn signal lamps |
| 7 | 10 | Low beam headlamps (left) |
| 8 | 10 | Low beam headlamps (right) |
| 9 | 15 | Courtesy Ughts/Illuminated scuff plate |
| 10 | 15 | Backlighting, Puddle lamps |
| 11 | 10 | Except Hybrid: AWD module |
| 12 | 7.5 | Memory modules, Memory seat/mirrors switches |
| 13 | 5 | SYNC® module |
| 14 | 10 | Electronic finish panel (EFP) radio and climate control buttons module, Navigation display, Center information display, GPS module, Ambient lighting |
| 15 | 10 | Climate control |
| 16 | 15 | - (Spare) |
| 17 | 20 | Door locks, Trunk release |
| 18 | 20 | Except Hybrid: - (Spare) |
| Hybrid: Heated seat module | ||
| 19 | 25 | - (Spare) |
| 20 | 15 | On-Board Diagnostic connector |
| 21 | 15 | Fog lamps |
| 22 | 15 | Front sidemarker lamps, Park lamps, License plate lamp |
| 23 | 15 | High beam headlamps |
| 24 | 20 | Horn |
| 25 | 10 | Demand lamps/power saver relay |
| 26 | 10 | Instrument cluster battery power |
| 27 | 20 | Ignition switch |
| 28 | 5 | Radio crank sense circuit |
| 29 | 5 | Instrument cluster ignition power |
| 30 | 5 | - (Spare) |
| 31 | 10 | - (Spare) |
| 32 | 10 | Restraint control module |
| 33 | 10 | - (Spare) |
| 34 | 5 | - (Spare) |
| 35 | 10 | Rear park assist, Blind spot monitor system, Rear video camera, AWD |
| 36 | 5 | Passive anti-theft sensor (PATS) transceiver |
| 37 | 10 | Except Hybrid: - (Spare) |
| Hybrid: Humidity sensor fan | ||
| 38 | 20 | Subwoofer amplifier |
| 39 | 20 | Radio |
| 40 | 20 | - (Spare) |
| 41 | 15 | Automatic dimming mirror, Moon roof, Compass, Front windows |
| 42 | 10 | Electronic stability control, Adaptive headlamps |
| 43 | 10 | Rain sensor |
| 44 | 10 | Fuel diode/Powertrain control module |
| 45 | 5 | Heated backlight and blower relay coil, Wiper washer |
| 46 | 7.5 | Occupant classification sensor (OCS) module, Passenger airbag off lamp |
| 47 | 30 | Circuit Breaker: Rear windows |
| 48 | Delayed accessory | |
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Engine Compartment Fuse Box
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.
Diagram (except Hybrid)
| № | A | Circuit Protected |
|---|---|---|
| 1 | - | - |
| 2 | - | - |
| 3 | 40 | Powertrain control module (PCM) (relay 57 power) |
| 4 | - | - |
| 5 | 30 | Starter motor (relay 55 power) |
| 6 | 40 | Rear defrost (relay 53 power) |
| 7 | - | - |
| 8 | 40 | Anti-lock brake system (ABS) pump |
| 9 | 20 | Wipers washer |
| 10 | 30 | ABS valves |
| 11 | - | - |
| 12 | 30 | Heated/cooled seats |
| 13 | - | - |
| 14 | - | - |
| 15 | - | - |
| 16 | 15 | Transmission module |
| 17 | 10 | Alternator |
| 18 | - | - |
| 19 | - | - |
| 20 | 20 | Audio amplifier |
| 21 | 20 | Audio amplifier |
| 22 | 20 | Console power point |
| 23 | 10 | PCM - Keep alive power, Canister vent |
| 24 | - | - |
| 25 | 10 | A/C clutch (relay 43 power) |
| 26 | 15 | Left headlamp (relay 42 power) |
| 27 | 15 | Right headlamp (relay 44 power) |
| 28 | 80 | Cooling fan motor |
| 29 | 20 | Front power point |
| 30 | 30 | Fuel relay (relay 54 power) |
| 31 | 30 | Passenger power seat |
| 32 | 30 | Driver power seat |
| 33 | 20 | Moon roof motor power feed |
| 34 | - | - |
| 35 | 40 | Front A/C blower motor (relay 52 power) |
| 38 | 10 | Heated side mirrors |
| 39 | - | - |
| 40 | - | - |
| 45 | 15 | Injectors |
| 46 | 15 | PCM |
| 47 | 10 | General powertrain components, A/C clutch, back-up lamps |
| 48 | 15 | Ignition coils |
| 49 | 15 | Emissions related powertrain components |
| 36 | Fuel pump | |
| 37 | One-touch start | |
| 41 | Backup lamps | |
| 42 | Left headlamps | |
| 43 | A/C clutch | |
| 44 | Right headlamps | |
| 50 | - | |
| 51 | - | |
| 52 | Blower motor | |
| 53 | Rear defrost | |
| 54 | Fuel | |
| 55 | Starter | |
| 56 | - | |
| 57 | PCM | |
| 58 | - | |
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Diagram (only Hybrid)
| № | A | Circuit Protected |
|---|---|---|
| 1 | 50 | Electronic power assist steering B+ |
| 2 | 50 | Electronic power assist steering B+ |
| 3 | 40 | Powertrain control module (aux relay 5 power) |
| 4 | - | - |
| 5 | - | - |
| 6 | 40 | Rear defrost (aux relay 4 power) |
| 7 | 40 | 2011: Vacuum pump (aux relay 6 power) |
| 30 | 2012: Vacuum pump (aux relay 6 power) | |
| 8 | 50 | Brake system controller pump |
| 9 | 20 | Wiper washer |
| 10 | 30 | Brake system controller valves |
| 11 | - | - |
| 12 | 30 | Heated-cooled seats |
| 13 | 15 | Motor electronics coolant/heater pump (relay 42 & 44 power) |
| 14 | - | - |
| 15 | - | - |
| 16 | - | - |
| 17 | 10 | HEV high voltage battery module |
| 18 | - | - |
| 19 | - | - |
| 20 | 20 | THX Radio |
| 21 | 20 | THX Radio |
| 22 | 20 | Console power point |
| 23 | 10 | Powertrain control module/ Transmission control module keep-alive power, Canister vent |
| 24 | - | - |
| 25 | - | - |
| 26 | 15 | Left headlamp (aux relay 1 power) |
| 27 | 15 | Right headlamp (aux relay 2 power) |
| 28 | 60 | Cooling fan motor |
| 29 | 20 | Front power point |
| 30 | 30 | Fuel relay (relay 43 power) |
| 31 | 30 | Passenger power seat |
| 32 | 30 | Driver power seat |
| 33 | 20 | Moon roof |
| 34 | - | - |
| 35 | 40 | Front A/C blower motor (aux relay 3 power) |
| 37 | 5 | Vacuum pump monitoring |
| 38 | 10 | Heated side mirrors |
| 39 | 10 | Transmission control module |
| 40 | 10 | Powertrain control module |
| 45 | 15 | Injectors |
| 46 | 15 | Coil on plugs |
| 47 | 10 | Powertrain control module (general): Heater pump, Motor electronics coolant pump relay coils, DC/DC converter, Back-up lamps, Brake controller |
| 48 | 20 | HEV high voltage battery module, Fuel pump relay |
| 49 | 15 | Powertrain control module (emissions related) |
| 36 | 1 | Fuel pump |
| 41 | Backup lamps | |
| 42 | Heater pump | |
| 43 | Fuel pump | |
| 44 | Motor electronics coolant pump | |
Additional Relay Box (only Hybrid)
| № | Circuit Protected |
|---|---|
| 1 | Left headlamp |
| 2 | Right headlamp |
| 3 | Blower motor |
| 4 | Rear window defogger |
| 5 | Powertrain control module |
| 6 | Vacuum pump cut-off |
| 7 | Vacuum pump |
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