FUZE BOX DIAGRAM FOR 1990 MERCURY TOPAZ - Topaz Mercury Cars & Trucks

Replacement

1. Access the fuse panel from the left of the steering column.
2. Locate the blown fuse and pull out. DO NOT TWIST.
3. Take note of the ampre number written on the top of the fuse. To install:
   
4. Push a new fuse of the same ampre into the receptacle, making sure the contact is being made on both sides of the fuse.

LOCATIONS Headlights and Highbeam Indicator

• One 18 amp circuit breaker (22 amp in 1987 vehicles) incorporated in the lighting switch.

Front and Rear Marker, Side Parking, Rear and License Lamps

• One 15 amp circuit breaker incorporated in the lighting switch.

Windshield Wiper

• One 4 1⁄2 amp circuit breaker located in the windshield wiper switch.

Power Windows

• Two 20 amp circuit breakers located in the starter relay and the fuse block.

Power Seats and Power Door Locks

• One 20 amp circuit breaker located in the fuse block.

Hazard Flasher REMOVAL & INSTALLATION NOTE: The hazard warning flasher is located on the rear side of the fuse panel.

1. Locate the hazard flasher in the fuse panel.
2. Pull the flasher out. DO NOT TWIST. To install:
   
3. Push new flasher into place making sure a good contact is made with both terminals.
4. Test flasher to make sure they function properly.

Various Relays LOCATION Cooling Fan Controller

• Located behind the left side of the instrument panel.

Cooling Fan Controller Module

• Located behind the right side of the instrument panel.

Cooling Fan Relay

• Located in the air conditioning cooling fan control module.

Electronic Control Assembly

• Located under the left side of the instrument panel.

Electronic Engine Control Power Relay

• Located behind the glove box on the right side of the instrument panel.

Fuel Pump Relay

• Located behind the glove box.

Horn Relay

• Located in the fuse block.

Fig. 1: Main fuse box located on driver's side to the left of the steering wheel, above the brake pedal


This is the best info I could find....I hope this helps ya!