Jonathan Yarden Feb 11, 2021 · 5 min. read
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 on the right-hand side of the center console, by the instrument panel. Remove the panel cover to access the fuses.
| Fuse/relay | Ampere rating [A] | Description |
| 1 | β | Not used |
| 2 | β | Not used |
| 3 | 15* | Front and rear park lamps |
| 4 | 10* | Ignition switch |
| 5 | 2* | Powertrain Control Module (PCM relay), PATS module |
| 6 | 15* | Stop lamps |
| 7 | 10* | Instrument cluster, Power mirror switch, Radio |
| 8 | β | Not used |
| 9 | 300** | Power door locks |
| 10 | 15* | Heated mirrors, Rear defroster switch indicator |
| 11 | 15* | Moon roof |
| 12 | 5* | Radio |
| 13 | β | Not used |
| 14 | β | Not used |
| 15 | 30** | Power windows |
| 16 | 15* | Subwoofer |
| 17 | 15* | Low beams |
| 18 | 10* | 4Γ4 |
| 19 | β | Not used |
| 20 | 15* | Horn |
| 21 | 10* | Rear wiper motor, Rear wiper washer |
| 22 | 10* | Instrument cluster |
| 23 | β | Not used |
| 24 | 20* | Cigar lighter |
| 25 | 20* | Front wiper motor, Front wiper washer |
| 26 | 5* | Climate control system mode switch |
| 27 | 5* | Traction (high voltage) Battery Control Module (TBCM), Injectors |
| 28 | 10* | Instrument cluster |
| 29 | 10* | Back-up lamps, Reverse park aid |
| 30 | β | Not used |
| 31 | β | Not used |
| 32 | 10* | Spare |
| 33 | 15* | Air bag module |
| 34 | 5* | Brake System Control Module (BSCM), Power Steering Control Module (PSCM) |
| 35 | 5* | 4Γ4, Heated seats |
| * Mini fuse ** Cartridge fuse | ||
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 | 5* | Brake module |
| 2 | 10* | Climate control |
| 3 | 5* | Transaxle Control Module (TCM) |
| 4 | 7,5* | Traction (high voltage) Battery Control Module (TBCM), Powertrain Control Module (PCM) |
| 5 | 5* | Interlock |
| 6 | 15* | PCM power |
| 7 | 15* | Heated Exhaust Gas Oxygen (HEGO) sensors |
| 8 | 10* | TCM VPWR |
| 9 | 20* | Fuel pump |
| 10 | 30* | Bussed power feed to PDB fuses 1, 2, 3, 4 |
| 11 | 20* | Foglamps |
| 12 | 25* | Exterior lighting |
| 13 | 25* | B+ lighting |
| 14 | β | Not used |
| 15 | 20* | Ignition main |
| 16 | 15* | A/C clutch |
| 17 | 20* | Power point |
| 18 | 30* | Injectors, COP (Coil-on-plug) |
| 19 | 40** | Climate control blower |
| 20 | 40** | Cooling fan #1 |
| 21 | 40** | PCM power |
| 22 | 40** | SJB power (Passenger compartment fuse box) power #1 |
| 23 | 40** | SJB power (Passenger compartment fuse box) power #2 |
| 24 | 50** | BSCM #1 |
| 25 | 50** | Power Steering Control Module (PSCM) #1 |
| 26 | 50** | TBCM (high voltage battery) cooling fans and jump start |
| 27 | 40** | Cooling fan #2 |
| 28 | 40** | Rear defroster, Heated mirrors |
| 29 | 20** | Heated seats |
| 30 | 40** | SJB (Passenger compartment fuse box) power #3 |
| 31 | 50** | BSCM #2 |
| 32 | 50** | PSCM #2 |
| 001 | Relay | Power sustain for PCM, TBCM and Transaxle Control Module (TCM) |
| 002 | Relay | PCM power |
| 003 | Relay | Injector |
| 004 | Relay | Auxiliary coolant pump |
| 005 | Relay | Motor/Electronic coolant pump |
| 006 | Relay | Foglamps |
| 007 | Relay | A/C clutch |
| Diode 01 | β | A/C clutch |
| Diode 02 | β | Not used |
| * Mini fuse **Cartridge fuse | ||
Auxiliary relay box
The relay box is located on the radiator support (left of the hood latch).
| Fuse/relay | Description |
| Relay 1 | Driver side cooling fan |
| Relay 2 | Passenger side cooling fan (low-speed) |
| Relay 3 | Passenger side cooling fan (high-speed) |
WARNING:Β Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market
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