Buick Roadmaster (1994-1996) fuse box and relay Diagrams
The Buick Roadmaster, produced from 1994 to 1996, epitomized luxury and comfort in the full-size sedan segment during its era. This model is equipped with a range of essential electrical components, including the fuse box and relays, which played critical roles in managing and safeguarding the vehicle’s electrical systems.
The fuse box in the Buick Roadmaster 1994-1996 housed a series of fuses designed to protect electrical circuits from overloads and short circuits. These fuses were strategically positioned to safeguard critical components such as headlights, taillights, power windows, and the stereo system. Understanding the location and function of each fuse is important for diagnosing and resolving electrical issues effectively.
Relays in the Buick Roadmaster 1994-1996 acted as electrically operated switches that controlled the flow of electricity to specific components. These relays were integral to systems such as the starter motor, fuel pump, and cooling fans, ensuring reliable operation and optimal performance. Proper maintenance and periodic inspection of relays were crucial to maintain the vehicle’s functionality and reliability.
Additionally, the Buick Roadmaster 1994-1996 likely featured advanced electrical technologies for its time, including automatic climate control, power-adjustable seats, and advanced audio systems. These amenities relied on a robust electrical infrastructure to deliver enhanced comfort and convenience to occupants.
(1994-1996) Buick Skyhawk fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Buick Skyhawk 1994-1996 fuse assignment
Year of production: 1994,1995, 1996
Engine Compartment Fuse Box
Fuse Box Location
Fuse box diagram
Assignment of the fuses in the engine compartment
| № | Description |
|---|---|
| 1 | Auto Level Control Air Compressor |
| 2 | Fuel Pump Relay, Fuel Pump Switch and Engine Oil Pressure Sensor (1994-1995), PCM |
| 3 | Secondary Air Pump Relay, Underhood Lamp |
| 4 | Mass Air Flow Sensor, Secondary Air Pump Relay, EGR Solenoid, Evaporative Emission Solenoid, Oxygen Sensors, Automatic Transmission |
| 5 | PCM, Ignition Coil, Electronic Brake Control Module |
| 6 | Fuel Injector Cylinders One, Four, Six, Seven |
| 7 | Primary Cooling Fan, A/C Compressor Relay |
| 8 | Generator, Secondary Cooling Fan |
| 9 | Fuel Injector Cylinders Two, Three, Five, Eight |
| Relay | |
| R1 | Fuel Pump |
| R2 | Air Conditioning Compressor |
| R3 | Air Pump |
| R4 | Primary Cooling Fan |
| R5 | Secondary Cooling Fan |
Instrument Panel Fuse Box
Fuse Box Location
The fuse box is located on the left side of the instrument panel (to access, open the fuse panel door).
Fuse box diagram
Assignment of the fuses in the instrument panel
| № | Description |
|---|---|
| 1-5 | Not Used |
| 6 | 1994: Turn Signal Lamp Flasher, Park Neutral position Switch; 1995-1996: Not Used |
| 7 | 1994: Electronic Brake Control Module; 1995-1996: Not Used |
| 8 | Rear Window Wiper |
| 9 | Radio |
| 10 | Windshield Wiper/Washer Switch |
| 11 | Rear Defog Relay, Air Bag System (1995-1996), SDM (1994), Rear Compartment Lid Release Switch (1994), Headlamp Switch, I/P Cluster, Rear Defog Switch |
| 12 | 1994: Auto Lever Control Sensor, Ignition Switch;
1995-1996: Turn Signal Lamp Flasher, Back-up Lamp/Transmission Position Sensor (PNP) Switch, Shift Interlock (BTSI) |
| 13 | Inside Rearview Mirror, Warning Alarm, Cruise Control Release Switch (1994-1995), Stoplamp Switch (1996), Headlamp Auto Control Module, Daytime Running Lamp Control Module, Remote Control Door Lock Receiver, Automatic Level Control Sensor |
| 14 | Theft-Deterrent Module |
| 15 | Air Bag System |
| 16 | Cruise Control Module, Cruise Control Switch, Cruise Control Release Switch |
| 17 | Heater and A/C Control, Low Blower Module Relay |
| 18 | Power Steering Control Module, Heated Seats Control (1995-1996) |
| 19 | Not Used |
| 20 | Electric Actuator, Vacuum Electric Solenoid, Heater and A/C Control, Instrument Cluster, Daytime Running Lamps (1995-1996) |
| 21-23 | Not Used |
| 24 | Air Bag System / SDM, Theft-Deterrent Relay |
| 25 | Not Used |
| 26 | 1994: Radio Power Antenna Relay; 1995-1996: Not Used |
| 27 | Auto Level Control Sensor, Rear Compartment Courtesy Lamp, Mercury Switch |
| 28 | Cigarette Lighter, Diagnostic Link Connector (1996) |
| 29 | Remote Control Door Lock Receiver, Liftgate Wiper Latch Switch, Rear Glass Release Switch, Rear Compartment Lid Release Switch, Rear Glass Release Relay, Rear Compartment Release Relay |
| 30 | Radio |
| 31 | Headlamp Switch, Headlamp Auto Control Module, Daytime Running Lamps Control Module |
| 32 | Horn Relay |
| 33 | Warning Alarm, I/P Compartment Lamp Switch, I/P Compartment Lamp, I/P Cluster, Heater and A/C Control |
| 34 | Theft-Deterrent Module |
| 35 | Courtesy Lamp Relay, Front Door Lock Switches, Front Door Courtesy Lamps, Rear Door Courtesy Lamps, Outside Remote Control Rearview Mirror Switch, Inside Rearview Mirror, Sunshade, Illuminated Mirrors, I/P Door Lamps, Roof Rail Courtesy Lamps |
| 36 | Rear Window Wiper Motor, Rear Compartment Lid Pull-Down Actuator |
| 37 | Stoplamp Switch, Hazard Lamp Rasher |
| 38 | 1994: Not Used; 1995-1996: Blower Motor Control Module |
| 39 | 1994: Not Used; 1995-1996: Power Door Lock Relay |
| 40 | 1994: Blower Motor Control Module; 1995-1996: Heated Seat Controls |
| 41 | Turn Signal Switch, Sidemarker Lamps, Turn/Parking Lamps |
| 42 | 1994: Heater and A/C Control, Headlamp Switch, Instrument Cluster. Radio. Headlamp and Instrument Panel Lamp Dimmer Switch. Panel Lamps Dimming Module, Interior Lights;
1995-1996: Heater and A/C Control, Headlamp Switch, Instrument Cluster, Radio |
| 43 | Opera Lamps, License Lamp, Marker Lamps, Inboard Taillamps, Outboard Tail/Tum Stoplamps, Inboard Tail/Turn Stoplamps |
| 44 | Heated Power Mirrors |
| 45 | Not Used |
| Circuit Breakers | |
| CB1 | 1994: Not Used; 1995-1996: Power Antenna Relay, Power Seats |
| CB2 | Master Power Window Switch, Power Window Lockout Switch, Power Window Control Module |
| CB3 | Door Lock Relay (1994), Driver’s and Passenger’s Power Seat Switches, LH and RH Recline Switches, LH and RH Lumbar Switches |
| CB4 | Rear Window Defog Switch, Rear Window Defog Relay |
| CB5 | Not Used |
Conclusion
For owners and enthusiasts of the Buick Roadmaster 1994-1996, familiarity with the fuse box and relay systems is important for vehicle maintenance. Regular inspection and replacement of fuses and relays helped ensure the vehicle’s longevity and reliability, preserving its reputation as a luxurious and dependable mode of transportation during its production years.