Mercury Mountaineer 1999 Fuse Box Info
Passenger compartment fuse box location:
The fuse box is located on the left hand side of the instrument panel facing the driver’s side door.
Engine compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | 7.5A | Power Mirror Switch, Power Antenna |
| 2 | 7.5A | Blower Motor Relay, Air Bag Diagnostic Monitor |
| 3 | 7.5A | Left Stop/Turn Trailer Tow Connector |
| 4 | 10A | Left Headlamp |
| 5 | 10A | Data Link Connector (DLC) |
| 6 | 7.5A | Rear Blower Motor (Without EATC) |
| 7 | 7.5A | Right Stop/Turn Trailer Tow Connector |
| 8 | 10A | Right Headlamp, Foglamp Relay |
| 9 | 7.5A | Brake Pedal Position Switch |
| 10 | 7.5A | Speed Control/Amplifier Assembly, Generic Electronic Module (GEM), Shift Lock Actuator, Blend Door Actuator, A/C - Heater Assembly, Flasher, Overhead Console, Load Leveling Module |
| 11 | 7.5A | Instrument Cluster |
| 12 | 10A | Washer Pump Relay, Rear Washer Pump Relay |
| 13 | 20A | Brake Pedal Position Switch, Brake Pressure Switch |
| 14 | 10A | 4 Wheel Anti-Lock Brake System (4WABS) Module, 4WABS Main Relay |
| 15 | 7.5A | Instrument Cluster |
| 16 | 30A | Windshield Wiper Motor, Wiper Hi-Lo Relay, Wiper Run/Park Relay |
| 17 | 15A | Cigar lighter |
| 18 | 25A | Drivers Unlock Relay, All Unlock Relay, All Lock Relay |
| 19 | 25A | PCM Power Diode |
| 20 | 7.5A | RAP Module, Generic Electronic Module (GEM), Radio, Cellular Phone |
| 21 | 15A | Flasher (Hazard) |
| 22 | 20A | Auxiliary Power Socket |
| 23 | - | Not used |
| 24 | 7.5A | Clutch Pedal Position (CPP) Switch, Starter Interrupt Relay, Anti-Theft |
| 25 | 7.5A | Generic Electronic Module (GEM), Instrument Cluster, Securi-Lock |
| 26 | 10A | Battery Saver Relay, Electronic Shift Relay, Interior Lamp Relay, Electronic Shift Control Module |
| 27 | 15A | DRL, Backup Lamps Switch, DTR Sensor |
| 28 | 7.5A | Generic Electronic Module (GEM), Radio, Memory Seat |
| 29 | 15A | Radio |
| 30 | 15A | Park Lamp/Trailer Tow Relay |
| 31 | - | Not used |
| 32 | 10A | Heated Mirror |
| 33 | 15A | Headlamps, Daytime Running Lamps (DRL) Module, Instrument Cluster |
| 34 | 7.5A | Rear Integrated Control Panel, CD |
| 35 | 7.5A | Rear Blower Motor (With EATC) |
| 36 | 7.5A | EATC Memory, CD, Rear Integrated Control Panel, Memory Seat, Message Center |
Engine compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| Maxi Fuses | ||
| 1 | 50A | I/P Fuse Panel |
| 2 | 40A | Blower Motor Relay |
| 3 | 50A | 4 Wheel Anti-Lock Brake System (4WABS) Module |
| 4 | 30A | Power Windows, Power Moon Roof, Power Seat |
| 5 | 50A | Ignition Switch, Starter Relay |
| 6 | 20A | Transfer Case Relay |
| 7 | - | Not used |
| 8 | 20A | Automatic Ride Control ARC Switch Off/On Switch |
| 9 | 40A | Automatic Ride Control Relay |
| 10 | 30A | PCM Power Relay |
| Mini Fuses | ||
| 1 | 10A | A/C Relay |
| 2 | 30A | Heated Seats |
| 3 | 30A | Heated Backlight |
| 4 | 15A | Fog Lamps and Daytime Running Lamps |
| 5 | - | Not used |
| 6 | 10A | Powertrain Control Module |
| 7 | 30A | 4 Wheel Anti-Lock System (4WABS) Module |
| 8 | 15A | Rear Wiper Motor |
| 9 | 20A | Fuel Pump Relay and RAP Module |
| 10 | 15A | Horn Relay |
| 11 | 15A | Parklamps Relay and Mainlight Switch |
| 12 | 30A | Mainlight Switch and Multifunction Switch |
| 13 | 15A | Heated Oxygen Sensor, EGR Vacuum Regulator, EVR Solenoid, Camshaft Position (CMP) Sensor, Canister Vent Solenoid |
| 14 | 30A | Generator/Voltage Regulator |
| 15 | - | Not Used |
| Relays | ||
| 1 | - | Wiper Park Relay |
| 2 | - | A/C Relay |
| 3 | - | Wiper High/Low Relay |
| 4 | - | PCM Power Relay |
| 5 | - | Fuel Pump Relay |
| 6 | - | Starter Relay |
| 7 | - | Horn Relay |
| 8 | - | Rear Wiper Down Relay |
| 9 | - | Blower Motor Relay |
| 10 | - | Rear Wiper Up Relay |
| 1 | - | Not Used |
| 1 | - | Not Used |
| 2 | - | Electronic Engine Controls Diode |
