The first-generation Volvo XC90 I (2003, P28) uses three main fuse boxes: under the bonnet, in a side panel of the dashboard and behind luggage-compartment trim. This 2003 model-year reference covers 80 separate positions across three fuse holders: 24 in the engine compartment, 38 inside and 18 in the rear cargo area, including unassigned slots.
The numbering is specific to Volvo XC90 2003, not every first-generation XC90. Fuse fitment can change with the T6 engine, all-wheel drive, optional equipment and market. Most importantly, engine position 3 and cabin position 16 differ between 2003 and the adjacent model year. Always check the installed fuse and correct handbook before replacement.
Volvo XC90 2003: where are the fuse boxes?
Under the bonnet: the engine compartment distribution panel sits under a clipped protective lid. It contains protection for ABS/DSTC, ECM, starter, headlamps, horn and wipers. Inside: a dashboard end cover, accessible by opening the door, conceals the 38-position cabin holder. Rear: another holder is behind side trim in the luggage compartment, near the rear electrical module and equipment.
Volvo XC90 2003 engine compartment fuse box 1-24
This table preserves the exact amperages and unpopulated positions from the model-year chart. Wiper fuse 13 (25 A), ABS/DSTC fuses 14 and 19 (30 A each), washers 16 (15 A), starter 22 (25 A) and ECM 23 (5 A) are listed independently. The headlamp washer position 15 has 25 A in the referenced Volvo handbook, rather than the 35 A sometimes copied from secondary websites.
| Position | Rating [A] | Protected circuit / function |
|---|---|---|
| 1 | 25 | Accessory and auxiliary equipment supply |
| 2 | – | Unassigned position |
| 3 | 15 | Vacuum pump, depending on engine |
| 4 | 20 | Engine management oxygen sensors |
| 5 | 10 | Crankcase breather heater and solenoid valves |
| 6 | 15 | MAF airflow sensor, Engine Control Module (ECM) and injectors |
| 7 | – | Unassigned position |
| 8 | 10 | A/C compressor, accelerator pedal position sensor and electronics box fan |
| 9 | 15 | Horn |
| 10 | 10 | Rear window washer |
| 11 | 20 | Air conditioning and ignition coils |
| 12 | 5 | Brake light switch |
| 13 | 25 | Front windscreen wipers |
| 14 | 30 | ABS / Dynamic Stability and Traction Control (DSTC), first circuit |
| 15 | 25 | Headlamp washers if equipped; 25 A in the owner’s chart, rather than 35 A sometimes shown in secondary sources |
| 16 | 15 | Front windscreen washer |
| 17 | 10 | Right dipped-beam headlamp |
| 18 | 10 | Left dipped-beam headlamp |
| 19 | 30 | ABS/DSTC second circuit |
| 20 | 15 | Left high-beam headlamp |
| 21 | 15 | Right high-beam headlamp |
| 22 | 25 | Starter |
| 23 | 5 | Engine Control Module (ECM) and system relay |
| 24 | – | Unassigned position |
Engine fuse 3 is a 15 A vacuum-pump circuit on relevant 2003 engines. In the 2004 reference, this position is not populated. Do not fit a fuse in an unassigned slot without matching the original vehicle specification.
Volvo XC90 2003 passenger compartment fuse box 1-38
The side-panel cabin holder protects air conditioning, seats, central locking, infotainment, lighting, diagnostics and the fuel pump. Cabin fuse 11 (15 A) supplies the interior 12 V accessory socket. Cabin fuse 1 (30 A) feeds the heater blower, fuse 22 (5 A) is associated with the OBD II diagnostics system, and fuse 25 (15 A) supplies the fuel pump in this layout.
| Position | Rating [A] | Protected circuit / function |
|---|---|---|
| 1 | 30 | Heater and A/C blower |
| 2 | 30 | Factory audio amplifier |
| 3 | 30 | Driver power seat |
| 4 | 30 | Passenger power seat, if fitted |
| 5 | 25 | Front left door module: locks, window and mirror |
| 6 | 25 | Front right door module: locks, window and mirror |
| 7 | 30 | Rear electric windows and child safety locks |
| 8 | – | Unused socket |
| 9 | – | Unused in basic US manual; certain European versions use headlamp levelling |
| 10 | 5 | Additional power feed for electric passenger seat |
| 11 | 15 | Passenger compartment 12 V accessory socket, rated 15 A by the owner’s manual |
| 12 | 10 | Ignition switch, CEM, starter relay, SRS airbags, immobiliser and engine electronics |
| 13 | – | Unused socket |
| 14 | 10 | Upper Electronic Module (UEM) and interior lighting |
| 15 | – | Unused socket |
| 16 | 5 | Speed-sensitive power steering on the T6 |
| 17 | 5 | ABS/DSTC electronics |
| 18 | 15 | Driver seat heating, if equipped |
| 19 | 15 | Passenger seat heating, if equipped |
| 20 | 10 | Factory infotainment |
| 21 | 10 | Power relay D1: A/C, driver seat and dashboard instruments |
| 22 | 5 | Headlamp switch module, climate control, OBD II diagnostic connection and steering column stalks |
| 23 | 20 | Direction indicators |
| 24 | 10 | Automatic transmission, shiftlock and D2 circuit |
| 25 | 15 | Fuel pump |
| 26 | 15 | Electric sunroof, if fitted |
| 27 | 10 | Central Electronic Module (CEM), cabin, glovebox and mirror lighting, alarm siren |
| 28 | 5 | Alarm siren |
| 29 | – | Unused socket |
| 30 | 10 | Daytime running lights, first feed |
| 31 | 10 | Daytime running lights, second feed |
| 32 | 7.5 | Left front and rear position lights |
| 33 | 7.5 | Right position lights and number-plate lighting |
| 34 | 15 | Front fog lights, if fitted |
| 35 | – | Unused socket |
| 36 | 20 | High-beam headlamp circuits |
| 37 | 10 | Factory navigation and DVD player, if equipped |
| 38 | 15 | Dipped beams and optional bi-xenon headlights |
The T6 speed-sensitive power steering uses cabin 16 (5 A) in the 2003 chart, compared with 15 A for the combined steering/vacuum circuit in 2004. Some European examples also use position 9 for headlamp level control.
Volvo XC90 2003 luggage compartment fuse box 1-18
The rear power outlet has its own protection: cargo position 7 (15 A), separate from cabin fuse 11. Rear position 6 (10 A) controls tailgate release; 12 (15 A) supplies the rear window washer; 17 (7.5 A) supplies the AWD controller. Trailer wiring has separate permanent and ignition-switched circuits, if equipped.
| Position | Rating [A] | Protected circuit / function |
|---|---|---|
| 1 | 10 | Rear Electronic Module (REM) and luggage compartment lamp |
| 2 | 10 | Rear fog lamp |
| 3 | 15 | Brake lamps |
| 4 | 10 | Reversing lamps |
| 5 | 5 | Rear window heating control and accessory relay 15I |
| 6 | 10 | Tailgate opening button and release actuator |
| 7 | 15 | Luggage compartment 12 V power socket |
| 8 | 20 | Locks for rear doors, tailgate and fuel filler flap |
| 9 | 15 | Trailer wiring supply, permanent circuit 30 |
| 10 | 5 | Antenna |
| 11 | 15 | Accessory Electronic Module (AEM) |
| 12 | 15 | Rear window washer |
| 13 | 15 | Optional subwoofer or rear A/C |
| 14 | 7.5 | Secondary brake light circuit |
| 15 | 20 | Trailer ignition-switched 15I supply and optional parking sensors |
| 16 | – | Unused position |
| 17 | 7.5 | All-wheel-drive (AWD) control module |
| 18 | – | Unused position |
Which XC90 2003 fuses should I check?
Interior 12 V socket: dashboard position 11 (15 A). Boot 12 V outlet: luggage compartment position 7 (15 A). These are not the same circuit, so a fault in one outlet does not necessarily affect the other.
Front wipers: under-bonnet 13 (25 A). Front washer pump: under-bonnet 16 (15 A). Rear washer: cargo 12 (15 A). Horn: engine 9 (15 A). Cabin blower: dashboard 1 (30 A).
Headlamps: engine 17 (10 A) right dipped beam, 18 (10 A) left dipped beam, 20 and 21 (15 A each) high beams. Starting or no-start condition: engine 22 (25 A) starter, engine 23 (5 A) ECM, dashboard 25 (15 A) fuel pump. Diagnosis should include the battery, wiring and ECU fault codes.
ABS/DSTC: check under-bonnet 14/19 (30 A each) and dashboard 17 (5 A). All-wheel drive: cargo 17 (7.5 A); a working fuse does not confirm that the AWD pump or clutch is functional.
Volvo XC90 2003 and 2004: important differences
Compare the Volvo XC90 2004 fuse box guide when checking nearby production years. On 2003 cars, engine position 3 can use a 15 A fuse for a vacuum pump; in the 2004 US chart it is unused. Cabin position 16 is 5 A in 2003 for T6 steering but 15 A in 2004 for T6 steering and vacuum-pump equipment.
Another Volvo family with a different electrical system is the Volvo C40 Recharge; its fuse numbering is not interchangeable with the XC90.
Volvo XC90 2003 fuse box FAQ
Which fuse protects the passenger compartment 12 V outlet?
Dashboard fuse 11 (15 A), according to the 2003 fuse list.
Which fuse protects the luggage compartment 12 V outlet?
Rear fuse 7 (15 A).
Which fuse protects front windscreen wipers?
Engine compartment fuse 13 (25 A).
Is the 2003 fuse box completely identical to 2004?
No. Engine compartment fuse 3 and dashboard fuse 16 differ; verify the exact model-year owner’s reference.
Which fuse protects the AWD control module?
Luggage compartment position 17 (7.5 A), on vehicles equipped with this control system.
Use the exact factory-rated fuse. Never increase amperage after repeated failures; diagnose the circuit instead.