
In this article you will find a description of fuses and relays Mercury,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Passenger compartment fuse panel/Smart Junction Box (SJB)
The fuse panel is located under the instrument panel to the left of the steering wheel.
No. | A | Protected components |
F1 | 20 | High beams |
F2 | 15 | Interior lamps (Courtesy and demand lamps), Delayed accessory (Power windows and moonroof) |
F3 | 25 | Access/Security (Power door lock actuators, Decklid lock actuator, Decklid solenoid) |
F4 | 15 | Adjustable pedal switch |
F5 | 20 | Horns |
F6 | 20 | Audio (Subwoofer) |
F7 | 7.5 | Power/Keep Alive Memory (KAM): Cluster and Powertrain Control Module (PCM), Climate control, Analog clock |
F8 | 15 | Park lamps, Side markers, Trailer tow protect |
F9 | 20 | Cigar lighter, Data Link Connector (DLC) |
F10 | 7.5 | Mirrors and memory module, SDARS |
F11 | 20 | Audio, Family Entertainment System (FES) |
F12 | 10 | Back-up lamps, Electrochromatic mirror, Reverse Sensing System (RSS), Trailer tow protect |
F13 | 7.5 | Audio |
F14 | 7.5 | Starter relay coil, PCM |
F15 | 10 | Delayed accessory (Driver window motor logic, Moonroof, Audio, Driver door lock switch illumination) |
F16 | 10 | Rear defroster indicator, Heated mirrors |
F17 | 30 | Rear defroster |
F18 | 10 | PCM relay coil, Shifter Brake-Shift Interlock (BSI), Passive Anti-Theft System (PATS) module, Fuel relay coil, Brake lamps, Center High-Mounted Stop Lamp (CHMSL) |
F19 | 10 | Anti-lock Brake System (ABS)/Traction control module, All Wheel Drive (AWD) module, RSS, Heated seat modules |
F20 | 7.5 | Cluster, Climate control |
F21 | 7.5 | Restraint Control Module (RCM) |
F22 | 7.5 | Electrochromatic mirror, Compass module |
F23 | 7.5 | Wiper relay coil, Blower relay coil, Cluster logic |
F24 | 7.5 | Occupant Classification Sensor (OCS), Passenger Air bag Deactivation (PAD) |
C1 | 30 | Circuit breaker:Β Delayed accessory (Front passenger window, Rear passenger windows [via window switch], Window switch illumination, Backlighting |
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 vehicleβs main electrical systems from overloads.
No. | A | Protected components |
1 | 80 | SJB, SJB fuses 1, 2, 3, 4, 5, 8 and 12 |
2 | β | Not used |
3 | β | Not used |
4 | 50 | Wiper RUN/ACC relay to PDB, PDB fuses 37 and 38 |
5 | β | Not used |
6 | 20 | Moonroof |
7 | β | Not used |
8 | 60 | Engine cooling fan |
9 | β | Not used |
10 | 40 | Anti-lock Brake System (ABS) (Motor) |
11 | 30 | Starter |
12 | 30 | Powertrain Control Module (PCM) relay |
13 | 20 | ABS (Valves) |
14 | β | Not used |
15 | β | Not used |
16 | 15 | Traction Control Module (TCM) |
17 | 20 | Power point (Console) |
18 | 10 | Alternator |
19 | 40 | Logic feed to SJB, SJB solid state devices |
20 | 20 | Right-hand HID low beam headlamp |
21 | 40 | Rear defroster |
22 | 30 | Power seat motors (passenger) |
23 | 30 | Heated seat modules |
24 | 15 | Fog lamps |
25 | 10 | A/C clutch relay, A/C compressor clutch |
26 | β | Not used |
27 | β | Not used |
28 | 15 | Fuel relay (Fuel pump driver module, Fuel pump) |
29 | 80 | SJB power, SJB (Circuit breaker, Fuses 6, 7, 9, 10, 11 and 15) |
30 | 30 | Driver window motor |
31 | 20 | Left-hand HID low beam headlamp |
32 | β | Not used |
33 | 30 | Driver seat motors, Memory module |
34 | 30 | Ignition switch (to SJB) |
35 | β | Not used |
36 | 40 | Front A/C blower motor |
37 | 30 | Front wiper, Front washer |
38 | 5 | Heated Positive Crankcase Ventilation (PCV) valve |
39 | β | Not used |
40 | 10 | TCM, EVMV, Canister vent, ESM, Exhaust Gas Oxygen heaters, A/C clutch |
41 | 15 | PCM, Injectors, Ignition coils, Mass Air Flow (MAF) sensor |
42 | β | Not used |
43 | β | Not used |
45 | β | Not used |
46 | β | Not used |
Relay | ||
47 | Not used | |
48 | Fog lamps | |
49 | Not used | |
50 | Not used | |
51 | A/C clutch | |
52 | Not used | |
53 | Fuel pump driver module, Fuel pump | |
54 | Not used | |
55 | PCM relay, PDB fuses 40nd 41 | |
56 | Starter motor solenoid | |
57 | Front A/C blower motor | |
58 | Wipers | |
59 | Not used | |
Diode | ||
60 | PCM | |
61 | PCM |
WARNING:Β Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Still have questions or want to supplement the article? Discuss On Telegram