
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
The fuse panel is located below the instrument panel on the driverβs side.
Fuse/relay | Ampere rating [A] | Description |
1 | 20 | Moonroof, Adjustable pedals, DSM, Memory lumbar motor |
2 | 5 | Microcontroller power (SJB) |
3 | 20 | Radio |
4 | 20 | OBD II connector |
5 | 5 | Moonroof |
6 | 20 | Liftglass release motor, Door unlock/lock |
7 | 15 | Trailer stop/turn |
8 | 15 | Ignition switch power, PATS |
9 | 2 | 6R TCM/PCM (Ignition RUN/START), Fuel pump relay |
10 | 5 | Front wiper RUN/ACC relay in PDB |
11 | 5 | Radio start |
12 | 5 | Rear wiper motor RUN/ACC, Trailer battery charge relay in PDB, Radio |
13 | 15 | Heated mirror, Manual climate rear defrost indicator |
14 | 20 | Horn |
15 | 10 | Reverse lamps |
16 | 10 | Trailer reverse lamps |
17 | 10 | RCM, PAD lamp, OCS module |
18 | 10 | Reverse park aid, IVD switch, IVD, AWD module, Heated seat switches, Compass, Electrochromatic mirror, AUX climate control |
19 | β | Not used |
20 | 10 | Manual climate, DEATC, Brake shift |
21 | β | Not used |
22 | 15 | Brake switch, Bi-color stop lamps, CHMSL, All turn lamps |
23 | 15 | Interior lamps, Puddle lamps, Battery saver, Instrument illumination, Homelink |
24 | 10 | Cluster, Theft LED |
25 | 15 | Trailer park, Trailer electronic brake module |
26 | 15 | License plate/rear park lamp, Front park lamps, Manual climate |
27 | 15 | Tri-color stop lamps |
28 | 10 | Manual/DEATC |
CB1 | 25 | Windows |
Β
Relay | Description |
Relay 1 | Delayed ACC |
Relay 2 | Rear defrost |
Relay 3 | Park lamps |
Relay 4 | RUN/START |
Power distribution 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.
Fuse/relay | Ampere rating [A] | Description |
1 | 50** | BATT 2 (SJB) |
2 | 50** | BATT 3 (SJB) |
3 | 50** | BATT 1 (SJB) |
4 | 30** | Fuel pump, Injectors |
5 | 30** | Third row seat (left) |
6 | 40** | IVD module |
7 | 40** | Powertrain Control Module (PCM) |
8 | 40** | Heated windshield (left) |
9 | 40** | Heated windshield (right) |
10 | 30** | Power seat (right) |
11 | 30** | Starter |
12 | 30** | Third row seat (right) |
13 | 30** | Trailer tow battery charger |
14 | 30** | Memory seats (DSM) |
40** | Non-memory seats | |
15 | 40** | Rear defrost, Heated mirrors |
16 | 40** | Blower motor |
17 | 30** | Trailer electronic brakes |
18 | 30** | Auxiliary blower motor |
19 | 30** | Running boards |
20 | β | Not used |
21 | 20* | Rear power point |
22 | 20* | Subwoofer |
23 | β | Not used |
24 | 10* | Powertrain Control Module (PCM) KAP, CAN vent |
25 | 20* | Front power point/Cigar lighter |
26 | 20* | AWD module |
27 | 20* | 6R Transmission module |
28 | 20* | Heated seats, Power mirrors |
29 | 20* | Headlamps (right) |
30 | 25* | Rear wiper |
31 | 15* | Fog lamps |
32 | 5* | Power mirrors |
33 | 30* | IVD module |
34 | 20* | Headlamps (left) |
35 | 10* | AC clutch |
36 | β | Not used |
37 | 30* | Front wiper |
38 | 15* | 5R Transmission |
39 | 15* | PCM power |
40 | 15* | Fan clutch, PCV valve, AC clutch relay, GCC fan |
41 | 15* | SDARS/DVD |
42 | 15* | Redundant brake switch, EVMV, MAFS, HEGO, EVR, VCT1, VCT2, CMCV, CMS |
43 | 15* | Coil on plug (4.6L engine only), Coil tower (4.0L engine only) |
44 | 15 | Injectors |
45A | β | Not used |
45B | β | GCC fan relay |
46A | β | Not used |
46B | β | Not used |
47 | β | Front wiper relay |
48 | β | PCM relay |
49 | β | Fuel pump relay |
50A | β | Fog lamps relay |
50B | β | AC clutch relay |
51 | β | Not used |
52 | β | A/C clutch (diode) |
53 | β | Not used |
54 | β | Trailer battery charger relay |
55 | β | Starter relay |
56 | β | Blower relay |
* Mini Fuses ** Cartridge Fuses |
WARNING:Β Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market
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