The Opel Frontera A debuted in 1991 at the Geneva Motor Show. While sold under the German Opel brand, the vehicle was developed as a Europeanized version of the Japanese Isuzu Rodeo SUV (known as the Isuzu Wizard in its home market). The two models are nearly identical in mechanical and electrical design. This guide provides comprehensive fuse box diagrams, relay assignments, and power distribution details for the first-generation Opel Frontera A / Isuzu Rodeo covering model years 1991, 1992, 1993, 1994, 1995, 1996, 1997, and 1998.
Below are the location guides, component diagrams, and circuit assignments for the vehicle's electrical centers. Fuses designated for the “Cigarette Lighter” and “Fuel Pump” are highlighted in bold text.
Passenger Compartment Electrical Centers
The interior features two power distribution centers (fuse and relay panels) protecting the vehicle's cabin electrical systems.
Passenger Compartment Fuse Panel
Located on the driver's side, under the lower dashboard fascia behind a removable plastic access cover.
General view of the interior fuse panel location on the Opel Frontera A / Isuzu Rodeo.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| 1 | Central door locking system | 10 |
| 2 |
|
15 |
| 3 | Interior lamps, audio head unit | 10 |
| 4 | Heated rear window (defogger) | 20 |
| 5 |
|
10 |
| 6 | Windshield wiper and washer system | 15 |
| 7 | Instrument cluster, turn signal indicators, power heated side mirrors, lights-on warning chime | 10 |
| 8 | Heated front seats, power sunroof (early models) | 15 |
| 9 | Ignition system, engine cooling fan motor (2.0L/2.2L engines) | 15 |
| 10 | Rear window wiper and washer system | 10 |
| 11 | Left front power window motor, power sunroof (late models) | 30 |
| 12 | Right front power window motor | 30 |
| 13 | Power window main switches, Frontera A cigarette lighter fuse | 15 |
| 14 | Anti-lock Braking System (ABS) module | 10 |
Passenger Compartment Relay Panel
Located in the front passenger footwell, mounted behind the side kick panel trim.
| Diagram | |
|---|---|
|
|
| No. | Relay Designation |
| 1 | Turn signal flasher unit |
| 2 | Central locking control module |
| 3 | Heated rear window relay |
| 4 | Engine Control Unit (ECU) main relay (2.0L/2.2L) |
| 5 | Headlight-on warning chime module |
| 6 | Rear fog lamp relay |
| 7 | Heated side mirror relay |
Engine Compartment Electrical Centers
Underhood Main Fuse & Relay Box
The main underhood power distribution box is positioned on the right side of the engine compartment near the 12V battery. Terminal configurations vary by model year, as shown in the layout photo above.
Pre-Facelift Models (1991–1995)
General view.
Fuse box cover legend example.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| F1 | Right parking lamps, taillamps, and clearance lamps | 10 |
| F2 | Left parking lamps, taillamps, and clearance lamps | 10 |
| F3 | Alternator / Generator circuit (early models, 2.8TD engine) | 15 |
| F4 | Right A/C condenser fan motor | 30 |
| F5 | Headlight washers, horn, Data Link Connector / OBD (early models) | 25 |
| F6 | Fuel delivery module (fuel pump fuse), Engine Control Module (ECM) - 2.0L/2.2L | 25 |
| F7 | Blower motor, A/C compressor clutch coil | 25 |
| F8 | Front fog lamps | 10 |
| F9 | Right headlamp, auxiliary lamps | 15 |
| F10 | Left headlamp, headlamp leveling motor, high beam indicator lamp | 10 |
| F11 | Fusible link – Main battery feed | 60 |
| F12 | Fusible link – Headlamps, secondary air injection system (2.2L) | 60 |
| F13 | Fusible link – Marker lamps, fuse F5 circuit supply | 30 |
| F14 | Fusible link – Engine cooling fan circuit | 30 |
| No. | Relay Designation | |
| 1 | Parking lamp relay | |
| 2 | A/C compressor relay | |
| 3 | Parking lamp relay | |
| 4 | Front fog lamp relay | |
| 5 | Headlamp relay | |
| 6 | Blower motor relay | |
| 7 | Horn relay | |
| 8 | Intermittent windshield wiper relay | |
Post-Facelift Models (1995–1998)
Component layout for engine compartment electrical centers on facelift models.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| F1 | Right side parking and side marker lamps | 10 |
| F2 | Left side parking lamps, instrument cluster backlighting, switch backlighting, cigarette lighter illumination, left lights-on warning chime | 10 |
| F3 | Low beam – Left headlamp | 10 |
| F4 | Low beam – Right headlamp | 10 |
| F5 | A/C condenser fan motor | 25 |
| F6 | Fuel delivery module (fuel pump fuse), engine management system (2.0L/2.2L) | 25 |
| F7 | Heater blower motor, A/C blower motor | 30 |
| F8 | A/C condenser fan motor (2.5TD engine) | 25 |
| F9 | High beam – Left headlamp, left parking lamp | 15 |
| F10 | High beam – Right headlamp, right parking lamp | 15 |
| F11 | Fusible link – Main distribution, heater relay, air conditioning system | 60 |
| F12 | Fusible link – Headlamp circuits | 65 |
| F13 | Fusible link – Exterior lighting, front fog lamps | 30 |
| F14 | Fusible link – Engine cooling fan motor | 30 |
| No. | Relay Designation | |
| 1 | Low beam relay | |
| 2 | Headlamp flash / flasher relay | |
| 3 | Parking lamp relay | |
| 4 | Front fog lamp relay | |
| 5 | Headlamp main relay | |
| 6 | Blower motor relay | |
| 7 | Horn relay | |
| 8 | Intermittent windshield wiper relay | |
Auxiliary Relay Modules
Several auxiliary relays are mounted separately in individual relay holders within the engine bay.
Relay Designations:
K81 – Auxiliary coolant pump relay;
K82 – Starter motor solenoid relay;
K87 – A/C condenser fan relay;
K97 – Headlamp washer timer control module;
K6 – A/C compressor clutch relay;
K25 – Engine cooling fan relay;
K51 – Auxiliary A/C fan relay;
K68 – Fuel delivery module relay (fuel pump relay);
K80 – Fuel filter heater element relay.