Blown Fuse: 2020 Lincoln MKZ Hybrid | Fuses and Fuse Box Diagram
For the 2020 Lincoln MKZ Hybrid, knowing how to change fuses is a key part of keeping the car’s electrical system in good shape. The user guidebook tells you everything you need to know to fix blown fuses, which are common in car electrical systems. Fuses are very important for keeping different parts safe from electrical overloads, and when one blows, it can stop some features from working. This manual gives owners the information they need to find fuses, figure out how much amperage they can handle, and quickly replace fuses that have popped. This user manual for the MKZ Hybrid goes into great detail about how to change fuses. This gives owners the tools they need to effectively troubleshoot electrical problems, ensuring a smooth driving experience by quickly fixing problems caused by blown fuses.
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FUSE SPECIFICATION CHART
Power Distribution Box
WARNING: Always disconnect the battery before servicing high-current fuses. To reduce the risk of electrical shock, always replace the cover to the power distribution box before reconnecting the battery or refilling fluid reservoirs.
The power distribution box is in the engine compartment. It has high-current fuses that protect your vehicle’s main electrical systems from overloads.
If you disconnect and reconnect the battery, you need to reset some features.
| Fuse or Relay Number | Fuse Rating | Protected Component |
| 1 | 25A | Wiper Motor 2. |
| 2 | – | Not used. |
| 3 | 15A | Rain sensor. |
| 4 | – | Blower motor relay. |
| 5 | 20A | Powerpoint 3 – back of the console. |
| 6 | – | Not used. |
| 7 | 20A | Powertrain control module – vehicle power 1. Powertrain control module power. |
| 8 | 20A | Powertrain control module – vehicle power 2. Emissions components. |
| 9 | – | Powertrain control module relay. |
| 10 | 20A | Powerpoint 1 – driver front. |
| 11 | 15A | Powertrain control module – vehicle power 4. Ignition coils. |
| 12 | 15A | Powertrain control module – vehicle power 3. Non-emissions components. |
| 13 | 10A | Fuel door mechanism. |
| 14 | 10A | Not used (spare). |
| 15 | – | Run/start relay. |
| 16 | 20A | Powerpoint 2 – console. |
| 17 | 20A | Powerpoint 4. |
| 18 | 10A | Powertrain and hybrid powertrain control module – keep alive power. |
| 19 | 10A | Run/start electronic power assist steering. |
| 20 | 10A | Run/start lighting. Adaptive cruise control. |
| 21 | 15A | Run/start the transmission switch. HEV inverter. |
| 22 | 5A | USB smart charger. |
| 23 | 15A | Run/start: blind spot information system, rearview camera, heads-up display, shifter. |
| 24 | – | Not used. |
| 25 | 10A | Run/start anti-lock brake system. |
| 26 | 10A | Run/start the powertrain control module. |
| 27 | 10A | Heater control valve (HCV) power 5. |
| 28 | 20A | Right-hand side headlamp ballast. |
| 29 | 20A | Left-hand side headlamp ballast. |
| 30 | – | Not used. |
| 31 | – | Not used. |
| 32 | – | Hybrid electric vehicle pulse width modulated fan relay. |
| 33 | – | Not used. |
| 34 | – | Not used. |
| 35 | 15A | Not used (spare). |
| 36 | 15A | Hybrid electric vehicle battery electronic control module fan. |
| 37 | – | Not used. |
| 38 | – | Vacuum pump #1 relay. |
| 39 | – | Vacuum pump #2 relay. |
| 40 | – | Fuel pump relay. |
| 41 | – | Horn relay. |
| 42 | – | Not used. |
| 43 | 10A | Fuel door motor. |
| 44 | – | Not used. |
| 45 | 5A | Vacuum pump monitor. |
| 46 | 10A | Not used (spare). |
| 47 | 10A | Brake on/off switch. |
| 48 | 20A | Horn. |
| 49 | 5A | Airflow monitor. |
| 50 | 15A | Battery energy control module. |
| 51 | 15A | Hybrid content vehicle power 1. Hybrid powertrain control module. |
| 52 | 15A | Hybrid content vehicle power 2. Battery energy control module. |
| 53 | 10A | Multi-contour seats. |
| 54 | 10A | Hybrid content vehicle power 3. Coolant pump. |
| 55 | 10A | Hybrid content vehicle power 4. Air conditioning compressor. |
- M Case fuse.
- Micro 2 fuse.
- Micro 3 fuse.
Note: Spare fuses can vary per amperage depending on the trim level of the vehicle.
Power Distribution Box – Bottom
There are fuses on the bottom of the fuse box. To access the bottom of the fuse box, do the following:
- Release the two latches on both sides of the fuse box.
- Raise the inboard side of the fuse box from the cradle.
- Move the fuse box toward the center of the engine compartment.
- Pivot the outboard side of the fuse box to access the bottom side.
| Fuse or Relay Number | Fuse Rating | Protected Component |
| 56 | 30A | Fuel pump feed. |
| 57 | – | Not used. |
| 58 | – | Not used. |
| 59 | 40A | Vacuum pump relay. |
| 60 | 40A | Pulse width modulated fan. |
| 61 | – | Not used. |
| 62 | 50A | Body control module 1. |
| 63 | – | Not used. |
| 64 | – | Not used. |
| 65 | 20A | Front heated seat. |
| 66 | 15A | Not used (spare). |
| 67 | 50A | Body control module 2. |
| 68 | 40A | Heated rear window. |
| 69 | 30A | Anti-lock brake system valves. |
| 70 | 30A | Passenger seat. |
| 71 | 50A | Not used (spare). |
| 72 | 30A | Panoramic roof number 1. Moonroof. |
| 73 | 20A | Not used (spare). |
| 74 | 30A | Driver seat module. |
| 75 | – | Not used. |
| 76 | 20A | e-Shifter. |
| 77 | 30A | Front climate-controlled seats. |
| 78 | – | Not used. |
| 79 | 40A | Blower motor. |
| 80 | 30A | Power decklid. |
| 81 | 40A | Inverter. |
| 82 | 60A | Anti-lock brake system pump. |
| 83 | 25A | Wiper motor number 1. |
| 84 | – | Not used. |
| 85 | 30A | Panoramic roof number 2. |
- M Case fuse.
- J Case fuse.
Note: Spare fuses can vary per amperage depending on the trim level of the vehicle.
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Passenger Compartment Fuse Panel
The fuse panel is under the instrument panel to the left of the steering column.
| Fuse or Relay Number | Fuse Rating | Protected Component |
| 1 | – | Not used. |
| 2 | 7.5A | Lumbar. |
| 3 | 20A | Driver door unlock. |
| 4 | 5A | Not used (spare). |
| 5 | 20A | Subwoofer amplifier. |
| 6 | 10A | Not used (spare). |
| 7 | 10A | Not used (spare). |
| 8 | 10A | Not used (spare). |
| 9 | 10A | Not used (spare). |
| 10 | 5A | Power trunk logic. Keypad. Cellphone passport module. |
| 11 | 5A | Not used (spare). |
| 12 | 7.5A | Climate control. Gear shift. |
| 13 | 7.5A | Steering wheel column. Instrument cluster. Datalink logic. |
| 14 | 10A | Extended power module. |
| 15 | 10A | Datalink/Gateway module. |
| 16 | 15A | Decklid release. |
| 17 | 5A | Not used (spare). |
| 18 | 5A | Push button start/stop. |
| 19 | 7.5A | Extended power module. |
| 20 | 7.5A | Adaptive headlamps. |
| 21 | 5A | Humidity and in-car temperature. |
| 22 | 5A | Not used (spare). |
| 23 | 10A | Delayed accessory (power inverter, moonroof, all smart windows, driver window switch pack). Rear sunshade. Panoramic roof. |
| 24 | 20A | Central lock/unlock. |
| 25 | 30A | Driver door (window, mirror). |
| 26 | 30A | Front passenger door (window, mirror). |
| 27 | 30A | Moonroof. |
| 28 | 20A | Amplifier. |
| 29 | 30A | Rear driver-side door (window). |
| 30 | 30A | Rear passenger side door (window). |
| 31 | 15A | Not used (spare). |
| 32 | 10A | Voice control. Display. Radio frequency receiver. |
| 33 | 20A | Radio.Active noise control. CD changer. |
| 34 | 30A | Run/start (fuse #19, 20, 21, 22, 35, 36, 37, circuit breaker). |
| 35 | 5A | Not used (spare). |
| 36 | 15A | Auto-dimming rearview mirror. Heated rear seats. Continuous control damping suspension module. |
| 37 | 20A | Heated steering wheel. |
| 38 | – | Not used. |
- Micro 2 fuse.
- Micro 3 fuse.
Note: Spare fuses can vary per amperage depending on the trim level of the vehicle.
CHANGING A FUSE
Fuses
WARNING: Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire.
If electrical components in the vehicle are not working, a fuse may have blown. Blown fuses are identified by a broken wire within the fuse. Check the appropriate fuses before replacing any electrical components.
Fuse Types
| Callout | Fuse Type |
| A | Micro 2 |
| B | Micro 3 |
| C | Maxi |
| D | Mini |
| E | M Case |
| F | J Case |
| G | J Case Low Profile |
FAQs
See the user manual provided with your vehicle. It contains detailed instructions on fuse replacement.
Fuses protect electrical components by breaking the circuit if there’s a surge or overload, preventing damage.
The vehicle typically has multiple fuse boxes.
Follow the instructions in the user manual to identify the blown fuse, and replace it with the appropriate one.
Only use the recommended fuse type and amperage as specified in the user manual to avoid electrical issues.
Regularly inspect fuses and replace them as needed. The user manual may provide a maintenance schedule.
Loss of power to certain electrical components, such as lights or the radio, is a common sign.
Yes, the user manual often includes a diagram indicating the function of each fuse, helping you identify the faulty one.
Auto parts stores, dealerships, or online retailers usually carry the appropriate replacement fuses.
Ensure the vehicle is turned off, and consult the user manual for safety recommendations.
It’s not advisable, as a blown fuse may affect essential functions. Replace the fuse before driving.
Typically, a fuse puller and spare fuses of the correct type and amperage are necessary.
Yes, you can find tutorials on automotive websites or video platforms. Ensure they are reputable sources.
Useful Link:
View full PDF: 2020 Lincoln MKZ Hybrid User Manual | Auto User Guide
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