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Mercury Mountaineer Third Generation (2005 - 2010) - fuse box diagram

avatar Jonathan Yarden Mar 27, 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.

Year of production: 2005, 2006, 2007, 2008, 2009, 2010

Passenger compartment fuse panel

Mercury Mountaineer Third Generation - fuse box - passenger panel

The fuse panel is located below the instrument panel on the driver’s 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

Mercury Mountaineer Third Generation - fuse box - power distribution box

The power distribution box is located in the engine compartment. The power distribution box contains high-current fuses that protect your vehicle’s 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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