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Volvo V70 I (1998) – Fuse Box and Relay Diagrams

The first-generation Volvo V70 estate (1998) uses two principal fuse carriers under the bonnet: a relay/main fuse box and a supplementary fuse box that contains the 40 numbered interior and accessory circuits. The 1998 Volvo S70/V70 owner’s handbook is used for the base specification. This guide preserves all 14 numbered main fuses, four associated relay positions and all 40 supplementary fuse positions, including three resetting circuit breakers for windows and power seats. North American and diesel-market electrical installations may differ.

Where are the 1998 Volvo V70 fuse boxes?

Turn the ignition off and open the bonnet. The relay/main fuse box is a covered high-current distribution carrier in the engine compartment. Release its latches and lift the cover to inspect fuses 1-14 and relays 15-18. A nearby supplementary fuse box has a separate cover and holds the smaller fuses 1-40, which are referenced independently from the main block. Match the diagram and labels on the lid of the exact car.

With a vehicle of this age, cover clips can be fragile and contacts may have corroded. Main fusible links are high-current service components; if one is open, locate the electrical fault rather than repeatedly replacing it.

Relay/main box – relay positions 15-18

The 1998 Volvo owner handbook identifies the system relay, secondary air pump, starter and air-conditioning relay. Their positions share the same housing as the high-current fuse set.

Volvo V70 I 1998 main relay and high current fuse box original layout
Original Volvo V70 relay/main fuse box diagram, retained for exact reference.
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15 – Main electrical system relay
16 – Secondary air-injection pump relay
17 – Starter motor relay
18 – Air-conditioning relay

Relay/main fuse box – power fuses 1-14

The main fuse table lists the cooling fan, ABS, lights, engine and gearbox electronics, starter, injection and fuel pump. Main fuse 9 is unoccupied in the North American 1998 handbook chart, but other diesel markets can use a separate high-current 80 A glow-plug supply at a corresponding position. This is an equipment-dependent difference, not a replacement rating for an empty socket.

Volvo S70 V70 1998 shared 11A 11B engine power distribution service diagram high resolution
Additional 1998 Volvo S70/V70 family schematic, showing the engine-bay power distribution and model-dependent 11A/11B circuits.
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1 60 Engine cooling fan main high-current power feed
2 50 Main supply to the supplementary fuse carrier
3 50 Starter motor and secondary air pump
4 50 Anti-lock braking system (ABS) high-current supply
5 50 Main headlamp supply
6 60 Supply for supplementary fuse circuits
7 60 Additional supply for supplementary fuse circuits
8 60 Engine and automatic transmission controllers
9 – Unoccupied in this 1998 North American handbook listing; certain diesel specifications have an 80 A glow-plug link at the corresponding high-current position
10 10 Ignition switch, ECM and automatic transmission controllers
11 10 Petrol fuel injectors
12 20 Fuel pump supply
13 10 Automatic transmission control unit
14 10 Air-conditioning relay
Some items listed are optional according to equipment, engine and market. The numbers above refer to the main relay/fuse block.

Supplementary fuse box – positions 1-40

This carrier contains circuits for lighting, central locks, heater, stereo, rear wiper and the heated rear glass. Position 30 is deliberately shown as unoccupied in the North American Volvo 1998 owner’s handbook; a separate detailed Volvo S70/V70 service allocation lists 15 A for a front 12 V lighter at 11C/30. Do not infer which applies without checking the vehicle’s cover and installed harness.

Volvo V70 1998 supplementary cabin fuse panel original diagram positions 1-40
Original 1998 V70 supplementary fuse layout, preserved from the source article.
Volvo V70 I 1998 shared S70 V70 central electrical unit 11C detailed high resolution diagram
Additional detailed 1998 Volvo S70/V70 11C schematic for comparison with the supplementary fuse positions.
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1 – Unused location in the North American 1998 reference
2 10 Central door locking and automatic gearbox driving-mode selector
3 10 ABS control electronics
4 10 Immobiliser on Canadian-market cars
5 15 Climate system and OBD-II diagnostic connector
6 – Unused in the 1998 North American handbook layout; some S70/V70 service configurations assign alarm equipment here
7 15 Radio / audio system
8 15 Canadian immobiliser, trip computer and headlamp switch
9 20 Electrically heated rear seat, on equipped cars
10 15 Ignition switch
11 10 Brake / stop lamps
12 – Unused in this reference configuration; some markets have diesel heating or optional equipment
13 15 Hazard warning lamps, flash-to-pass headlights and remote central locking
14 30 Heated rear windscreen and exterior mirrors
15 10 Courtesy and glovebox lights, open-door lamps, luggage compartment illumination and belt reminder
16 30 Power antenna, trailer electrical socket and optional accessories
17 20 Front fog lamps
18 10 Key-in-ignition reminder
19 15 Left high-beam headlamp
20 15 Right high-beam headlamp and warning lamp
21 15 Left dipped-beam headlamp
22 15 Right dipped-beam headlamp
23 10 Left front and rear position lamps, left tail lamp and licence-plate lights
24 10 Right front and rear position lamps and right tail lamp
25 10 Rear fog lamp and indicator
26 15 Exterior lighting / headlamp switch
27 15 Reversing lamps and direction indicators
28 25 Heated front and/or rear seats, where fitted
29 10 Rear-window heater, shift interlock, belt reminder, cruise, heated mirrors and failed-bulb warning
30 – Not assigned in the North American 1998 owner handbook; other S70/V70 11C/30 configurations list the front 12 V lighter at 15 A, so check the exact cover
31 25 Cabin ventilation fan and climate system
32 10 Audio system
33 15 Tailgate washer and wiper on the V70 estate
34 25 Front wipers, windscreen washers and horn
35 10 Instrument panel lighting, optional accessories and power sunroof
36 15 Rear 12 V auxiliary outlet and optional electric sunroof
37 Circuit breaker Resetting circuit breaker for electric windows and sunroof, not a conventional blade fuse
38 – Unused location
39 Circuit breaker Resetting circuit breaker for driver’s electrically operated seat
40 Circuit breaker Resetting circuit breaker for passenger’s electrically operated seat
Automatic circuit breakers (37, 39, 40) are resettable protections, not ordinary fuses. Exact equipment and circuit assignments can vary by market.

Estate-specific, diesel and North American differences

The wagon’s rear-window wiper is supplied via supplementary fuse 33 (15 A), and the rear 12 V accessory socket is associated with fuse 36 (15 A) on equipped cars. Heated rear seats, powered sunroof and electric seats are optional. On diesel V70 models, glow plug and injection controls have additional functions that do not appear in the petrol-oriented US owner’s handbook; confirm the appropriate separate engine diagram.

The three automatic reset devices in positions 37, 39 and 40 are circuit breakers rather than normal fuses. If the seat or electric window is blocked, the 1998 owner handbook instructs the driver to remove the obstruction and allow the breaker to reset before testing again.

Fuel pump, wipers, rear-window heater and 12 V socket

Fuel pump: Main fuse 12 (20 A) covers the pump; injector supply is at main fuse 11 (10 A). Electrical diagnosis also requires checking pump relays and wiring if the fuses are intact.

Wipers: Supplementary fuse 33 (15 A) is for the rear tailgate wiper, while fuse 34 (25 A) covers front wipers/washer and horn. Heated rear window: Supplementary fuse 14 (30 A) also supplies heated exterior mirrors. Front cigarette lighter: Detailed service information lists 11C/30 as 15 A, but the 1998 North American handbook leaves position 30 blank; follow the fitted cover rather than guessing.

See the Volvo S70 (1998-1999) guide for the detailed 11A/11B and 11C service-designation tables and the Volvo 850 (1993-1997) fuse box guide for the electrical system of the predecessor.

Technical reference: Volvo S70/V70 1998 Owner’s Manual, “Replacing fuses” and “Fuses”, pages 102-104, with separately labelled 1998 detailed electrical diagrams for comparison. Market, trim and powertrain differences take precedence.

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