Lincoln Navigator 2021 Fuse Box Info
Passenger compartment fuse box location:
The fuse box is located on the right side of the passenger footwell behind a the trim panel.
Engine compartment fuse box location:
The power distribution box is located in the engine compartment.
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | - | Not used |
| 2 | 10A | Driver seat switch |
| 3 | 7.5A | Driver door unlock |
| 4 | 20A | Speaker amplifier |
| 5 | - | Not used |
| 6 | 10A | Smart datalink connector logic |
| 7 | 10A | Rear audio control module, Head up display |
| 8 | 5A | Wireless accessory charger, Hands-free liftgate module |
| 9 | 5A | Keypad, Combined sensor module |
| 10 | - | Not used |
| 11 | - | Not used |
| 12 | 7.5A | Instrument cluster |
| 13 | 7.5A | Steering column control module, Smart datalink connector logic, Climate control module, Gear shift module |
| 14 | 15A | Brake switch |
| 15 | 15A | SYNC |
| 16 | - | Not used |
| 17 | 7.5A | Headlamp control module |
| 18 | 7.5A | Not used (spare) |
| 19 | 5A | Telematics control unit module, Bluetooth low energy module |
| 20 | 5A | Not used (spare) |
| 21 | 5A | In-vehicle temperature and humidity sensor |
| 22 | 5A | Electrochromic mirror, 2nd row heated seat module |
| 23 | 30A | Left-hand front door zone module, Power window switch, Power mirror switch, DVD player |
| 24 | 30A | Moonroof logic |
| 25 | 20A | Speaker amplifier 2 |
| 26 | 30A | Right-hand front door zone module |
| 27 | 30A | Left-hand rear door zone module |
| 28 | 30A | Right-hand rear door zone module |
| 29 | 15A | Adjustable column and pedal memory module |
| 30 | 5A | Trailer tow control module |
| 31 | 10A | Rear climate control module, Drive mode switch module, Terrain management system switch, Radio frequency transceiver module |
| 32 | 20A | Audio control module, Rear seat entertainment module, Rear audio control module |
| 33 | - | Not used |
| 34 | 30A | Run/start relay |
| 35 | 5A | Not used (spare) |
| 36 | 15A | Image processing module A, Automated Park Assist Module, Continuous control damping module, Air particulate matter sensor |
| 37 | 20A | Heated steering wheel |
| 38 | 30A Circuit Breaker | Left-hand rear power window, Right-hand rear power window |
Engine compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | 25A | Horn |
| 2 | 50A | Electric fan 1 |
| 3 | 30A | Front wiper motor |
| 4 | 50A | Inverter |
| 5 | 30A | Starter relay |
| 6 | 20A | Power point #1 |
| 8 | 20A | Power point #2 |
| 10 | 5A | Rain sensor |
| 12 | 20A | Trailer tow light module |
| 13 | 10A | 4X4 module, Heated backlight relay coil, Heated mirror relay coil, Heated wiper park relay coil, Transmission isolation relay coil |
| 14 | 15A | Transmission coil module |
| 15 | 15A | Right-hand lighting driver module, Left-hand lighting driver module, Voltage quality module, Blindspot information system, Cruise control module, Tailgate applique, Air quality sensor, Image processing module B |
| 16 | 10A | Powertrain control module run/start feed |
| 17 | 10A | Anti-lock brake system run/start feed |
| 18 | 10A | Electronic power assist steering, run/start feed |
| 19 | - | Not used |
| 20 | 40A | Front blower |
| 21 | 40A | Passenger seat motors |
| 22 | - | Not used |
| 23 | 10A | Alternator A-line |
| 24 | 30A | Trailer brake control module |
| 25 | 50A | Body control module power 1 |
| 26 | 50A | Electronic fan 3 |
| 27 | 40A | Driver seat motors |
| 28 | 15A | Rear heated seats, Rear seat climate control module |
| 29 | - | Not used |
| 30 | 25A | Trailer tow class II-IV battery charge |
| 31 | 50A | Power folding seat module |
| 32 | 10A | A/C clutch |
| 33 | - | Not used |
| 34 | - | Not used |
| 35 | 20A | Vehicle power 4 |
| 36 | 10A | Vehicle power 3 |
| 37 | 25A | Vehicle power 2 |
| 38 | 25A | Vehicle power 1 |
| 39 | - | Not used |
| 41 | - | Not used |
| 43 | - | Not used |
| 45 | 20A | Front/rear washer pump |
| 46 | 7.5A | Family entertainment system |
| 47 | - | Not used |
| 48 | - | Not used |
| 49 | - | Not used |
| 50 | 30A | Fuel pump |
| 51 | 20A | Power point #3 |
| 52 | 50A | Body control module voltage quality monitor |
| 53 | 25A | Trailer tow park lamps relay, Trailer tow control module |
| 54 | 40A | Electronic limited slip differential relay |
| 55 | 40A | Auxiliary blower |
| 56 | 20A | Power point #4 |
| 58 | 5A | Front driver and passenger seats - belt tension reducer |
| 59 | - | Not used |
| 60 | 5A | Lincoln start lamp |
| 61 | 25A | Right-hand enhanced exterior lighting module |
| 62 | 25A | Left-hand enhanced exterior lighting module |
| 63 | 25A | 4X4 module |
| 64 | - | Not used |
| 65 | - | Not used |
| 66 | - | Not used |
| 67 | - | Not used |
| 68 | - | Not used |
| 69 | 30A | Power liftgate module |
| 70 | 40A | Anti-lock brake system and park brake module |
| 71 | 25A | 4X4 module |
| 72 | - | Not used |
| 73 | - | Not used |
| 74 | 10A | Trailer tow backup lamps |
| 75 | - | Not used |
| 76 | 50A | Body control module run power 2 |
| 77 | 30A | Climate control seat module |
| 78 | - | Not used |
| 79 | - | Not used |
| 80 | 10A | Heated wiper park |
| 81 | - | Not used |
| 82 | - | Not used |
| 83 | 15A | Transmission control module power |
| 84 | - | Not used |
| 85 | - | Not used |
| 86 | 5A | USB smart charger #5 |
| 87 | 5A | USB smart charger #3 |
| 88 | 10A | Multi contour seats relay |
| 89 | 40A | Power running boards |
| 91 | - | Not used |
| 93 | 15A | Heated mirrors |
| 94 | 5A | USB smart charger #1 |
| 95 | 10A | USB smart charger #2 |
| 96 | 30A | Rear wiper motor relay |
| 97 | 40A | Intercooler puller fan relay |
| 98 | 15A | Transmission oil pump |
| 99 | 40A | Heated backlight |
| 100 | 20A | Power point #5 |
| 101 | 25A | Electronic fan 2 |
| 102 | - | Not used |
| 103 | - | Not used |
| 104 | - | Not used |
| 105 | - | Not used |
| R02 | Relay | Powertrain control module |
| R05 | Relay | Electric fan 2 |
