Mercury Mystique 1999 Fuse Box Info
Passenger compartment fuse box location:
The instrument panel fuse box is located underneath the instrument panel on the left side.
Engine compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| Fuses | ||
| 19 | - | Not used |
| 20 | C10 | Wiper motors (circuit breaker) |
| 21 | 40A | Power windows |
| 22 | 7.5A | ABS module |
| 23 | 15A | Backup lamps |
| 24 | 15A | Brake lamps |
| 25 | 20A | Door locks |
| 26 | 7.5A | Main light |
| 27 | 15A | Cigar lighter |
| 28 | 30A | Electric seats |
| 29 | 30A | Rear window defrost |
| 30 | 7.5A | Engine management system |
| 31 | 7.5A | Instrument panel illumination |
| 32 | 7.5A | Radio |
| 33 | 7.5A | Parking lamps - driver’s side |
| 34 | 7.5A | Interior lighting/electric mirror adjustment/clock |
| 35 | 7.5A | Parking lamps - passenger’s side |
| 36 | 10A | Air bag |
| 37 | 30A | Heater blower motor |
| 38 | - | Not used |
| Relays | ||
| R12 | - | Interior lighting |
| R13 | - | Rear window defroster |
| R14 | - | Heater blower motor |
| R15 | - | Wiper motor |
| R16 | - | Ignition |
| Diodes | ||
| D2 | - | Reverse voltage protection |
Engine compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| Fuses | ||
| 1 | - | Not used |
| 2 | 7.5A | Alternator |
| 3 | 20A | Foglamps |
| 4 | - | Not used |
| 5 | - | Not used |
| 6 | 3A | EEC ignition module (memory) |
| 7 | 20A | Horn and hazard flasher warning system |
| 8 | - | Not used |
| 9 | 15A | Fuel pump |
| 10 | - | Not used |
| 11 | 20A | Ignition, Electronic Engine Control |
| 12 | - | Not used |
| 13 | 20A | HEGO sensor |
| 14 | 7.5A | ABS module |
| 15 | 7.5A | Low beam headlamp (passenger’s side) |
| 16 | 7.5A | Low beam headlamp (driver’s side) |
| 17 | 7.5A | High beam headlamp (passenger’s side) |
| 18 | 7.5A | High beam headlamp (driver’s side) |
| 39 | - | Not used |
| 40 | 20A | Ignition, light switch, central junction box |
| 41 | 20A | EEC relay |
| 42 | 40A | Central junction box (fuse 37 to blower relay) |
| 43 | - | Not used |
| 44 | - | Not used |
| 45 | 60A | Ignition |
| 46 | - | Not used |
| 47 | - | Not used |
| 48 | - | Not used |
| 49 | 60A | Engine cooling |
| 50 | - | Not used |
| 51 | 60A | ABS |
| 52 | 60A | Central junction box (central timer module, rear window defrost relay, fuses 24, 25, 27, 28, 34) |
| Relays | ||
| R1 | - | Fuel pump |
| R2 | - | EEC module |
| R3 | - | Air conditioning |
| R4 | - | Low beam |
| R5 | - | High beam |
| R6 | - | Horn |
| R7 | - | Starter solenoid |
| R8 | - | Engine cooling fan (high speed) |
| R9 | - | Engine cooling fan |
| R10 | - | Not used |
| R11 | - | Daytime running lights |
| Diodes | ||
| D1 | - | Reverse voltage protection |
| D2 | - | Not used |
Auxiliary relays (outside of fuse boxes):
| Relay N° | Location | Functions |
| R18 | Driver’s door | “One touch” switch (driver’s window) |
| R20 | - | Not used |
| R21 | - | Not used |
| R22 | Module bracket | Fog lamps |
| R23 | Steering column | Turn signals |
| R24 | Door lock module bracket | Panic alarm – driver’s side |
| R25 | Door lock module bracket | Panic alarm – right-hand side |
| R26 | - | Not used |
