Fuse box on left side of dashboard
| Fuse | Fuse function | Ampere ratting [A] |
| 1 | 2003-2007: Center console socket, cigarette lighter 2007-2010: Cockpit socket at front centre, centre console sockets at rear right and rear left |
20 |
| 2 | Parking heater radio receiver | 5 |
| 3 | Socket in passenger footwell | 20 |
| 4 | 2003-2007: Parking heater | 15 |
| 2007-2010: Parking heater | 20 | |
| 5 | Sockets in luggage compartment | 20 |
| 6 | Porsche Entry & Drive | 15 |
| 7 | Diagnosis, rain/light sensor, antenna control | 5 |
| 8 | Windshield wipers | 30 |
| 9 | Vehicle electrical system control unit (pump for washer fluid) | 15 |
| 10 | 2003-2007: Power window, rear left | 25 |
| 2007-2010: Power window and central locking, rear left door | 30 | |
| 11 | 2003-2007: Central locking system | 15 |
| 12 | 2003-2007: Interior light, vehicle electrical system control unit | 20 |
| 13 | — | — |
| 14 | 2003-2007: Power window, front left | 25 |
| 2007-2010: Power window and central locking, front left door | 30 | |
| 15 | Tail light, right; central locking system, power windows, mirrors | 15 |
| 16 | Horn, vehicle electrical system control unit | 20 |
| 17 | 2003-2007: Turn signal, side light, left; vehicle electrical system control unit | 10 |
| 2007-2010: Vehicle electrical system control unit (left turn signal light, right side marker light, left low beam) | 30 | |
| 18 | 2003-2007: Headlight washer system | 20 |
| 2007-2010: Headlight washer system | 25 | |
| 19 | 2003-2007: Fog lights, vehicle electrical system control unit | 15 |
| 2007-2010: Interior light, vehicle electrical system control unit | 5 | |
| 20 | 2007-2010: Vehicle electrical system control unit (instrument lighting, fog light left, left additional high beam) | 30 |
| 21 | 2003-2007: Cornering light, vehicle electrical system control unit | 15 |
| 22 | Rear differential lock, transfer box, automatic rear lid | 30 |
| 23 | 2003-2007: Rear differential lock, disengageable anti-roll bars 2007-2010: Differential lock |
10 |
| 24 | Tire pressure monitoring system | 5 |
| 25 | — | — |
| 26 | Porsche Stability Management, passenger airbag deactivation, brake pedal switch, instrument panel, engine control unit, airbag control unit, steering column module | 10 |
| Engine control unit (engine management, radiator fans, airbag, clutch switch, instrument panel) | ||
| 27 | — | — |
| 28 | — | — |
| 29 | — | — |
| 30 | Off-road roof-mounted headlights | 15 |
| 31 | Off-road roof-mounted headlights | 15 |
| 32 | — | — |
| 33 | Steering wheel heating, steering column module | 15 |
| 34 | Passenger compartment monitoring, seat heating, inclination sensor | |
| 35 | 2003-2007: Low beam, high beam | 15 |
| 2007-2010: Vehicle electrical system control unit (right fog light, right additional high beam, interior light) | 30 | |
| 36 | 2003-2007: Vehicle electrical system control unit | 10 |
| 2007-2010: Control unit for power seat controls, left | 30 | |
| 37 | — | — |
| 38 | Brake lights | 10 |
| 39 | Relay activation, heated rear window, seat heating | 5 |
| 40 | Instrument panel, diagnosis | 5 |
| 41 | Kessy control unit (steering column lock, ignition lock, Porsche Entry & Drive, clutch switch) | 15 |
| 42 | Sliding/lifting roof or Panorama roof system | 30 |
| 43 | Subwoofer | 30 |
| 44 | Electrical seat adjustment, left; electrical steering column adjustment | 30 |
| 45 | Electrical seat adjustment, left; seat heating, rear | 30 |
| 46 | — | — |
| 47 | 2003-2007: Rear differential lock 2007-2010: Transfer box |
10 |
| 48 | Parking heater clock | 5 |
| 49 | Servotronic, disengageable anti-roll bars | 5 |
| 50 | 2003-2007: Heating pipe ventilation | 10 |
| 51 | Air-quality sensor, diagnostic socket, parking brake | 5 |
| 52 | 2003-2007: Rear wiper | 30 |
| 2007-2010: Rear wiper | 15 | |
| 53 | Heated rear window control unit, passenger compartment monitoring, light switch, steering column module | 5 |
| 54 | Headlight beam adjustment, Xenon headlight (left; 2007-2010) | 10 |
| 55 | — | — |
| 56 | Fan, front air-conditioning system | 40 |
| 57 | 2003-2007: Fan, rear air-conditioning system 2007-2010: Compressor level control |
40 |
Fuse box in right side of dashboard
| Number | Fused function | Ampere ratting [A] |
| 1 | Trailer coupling | 15 |
| 2 | ParkAssist | 5 |
| 3 | Trailer coupling | 15 |
| 4 | 2003-2007: Telephone/telematics control unit | 5 |
| 5 | Trailer coupling | 15 |
| 6 | Porsche Stability Management (PSM) | 30 |
| 7 | Transfer box (center-differential lock), telephone preparation | 5 |
| 8 | 2003-2007: Additional high beam, vehicle electrical system control unit | 20 |
| 2007-2010: Vehicle electrical system control unit (left side marker light, right turn signal, right low beam) | 30 | |
| 9 | 2003-2007: CD changer, DVD navigation | 5 |
| 10 | TV tuner, satellite receiver (2003-2007), Rear Seat Entertainment (2007-2010) | 5 |
| 11 | Radio or Porsche Communication System (PCM) | 10 |
| 12 | Amplifier for sound package and Bose | 30 |
| 13 | Seat heating | 5 |
| 14 | Tail light, left; central locking system, power windows, mirrors | 15 |
| 15 | 2003-2007: Power window, rear right | 25 |
| 2007-2010: Power window and central locking, rear right door | 30 | |
| 16 | Rear lid guard light, luggage compartment light, door guard light Rear guard lights | 10 |
| 17 | 2003-2007: Low beam, right; high beam, right | 15 |
| 18 | Heated rear window | 30 |
| 19 | 2003-2007: Brake booster, towing attachment | 30 |
| 25 | ||
| 2007-2010: Trailer coupling, trailer socket connection point | 25 | |
| 20 | Electric seat height adjustment | 30 |
| 21 | Spare wheel release relay (load), horn for alarm system | 10 |
| 22 | 2003-2007: Electrical seat adjustment, front right; seat heating, front right | 30 |
| 2007-2010: Seat heating, front | 25 | |
| 23 | Air conditioning | 10 |
| 24 | Electrical seat adjustment, front right | 30 |
| 25 | Air-conditioning system, rear | 5 |
| 26 | — | — |
| 27 | Level control, Porsche Active Suspension Management Level, Porsche Dynamic Chassis Control (PDCC) | 15 |
| 28 | — | — |
| 29 | 2003-2007: Transmission control unit | 10 |
| 2007-2010: Transmission control unit, Tiptronic selector lever switch | 5 | |
| 30 | Rear lid power closing mechanism | 20 |
| 31 | Filler flap actuator, rear end control unit (motors) | 15 |
| 32 | 2003-2007: Central locking, right | 10 |
| 33 | — | — |
| 34 | 2003-2007: Power window, front right | 25 |
| 2007-2010: Power window and central locking, front right door | 30 | |
| 35 | 2003-2007: Turn signal, side light, right; vehicle electrical system control unit | 10 |
| 2007-2010: Power seat controls, right | 30 | |
| 36 | Roof module, telephone, compass | 5 |
| 37 | — | — |
| 38 | Porsche Stability Management | 10 |
| 39 | Diagnosis | 5 |
| 40 | Transfer box (center differential lock) | 10 |
| 41 | Trailer coupling control unit | 10 |
| 42 | Roof module, garage door opener | 5 |
| 43 | Back up light | 5 |
| 44 | Heatable washer nozzles, chassis switch, seat heating potentiometer, Porsche Dynamic Chassis Control (PDCC) | 5 |
| 45 | — | — |
| 46 | 2007-2010: Rear Seat Entertainment | 5 |
| 47 | 2003-2007: Telephone preparation | 10 |
| 48 | Level control, Porsche Active Suspension Management | 10 |
| 49 | Telephone, automatic anti-dazzle mirror | 5 |
| 50 | 2003-2007: ParkAssist | 5 |
| 2007-2010: Xenon headlight, right | 10 | |
| 51 | 2003-2007: Tiptronic transmission control unit | 20 |
| 2007-2010: Tiptronic transmission control unit | 15 | |
| 52 | Tiptronic selector lever switch, transmission prewiring | 5 |
| 53 | Windscreen relay | 30 |
| 54 | Windscreen relay | 30 |
| 55 | Reversing camera control unit | 5 |
| 56 | Porsche Stability Management | 40 |
| 57 | Transfer box control unit, Low Range | 40 |
Engine Compartment Fuse Box
| Number | Fused function | Ampere ratting [A] |
| 1 | Fan | 60 |
| 2 | Fan | 30 |
| 3 | 2003-2007: Secondary air pump | 40 |
| 4 | 2003-2007: Secondary air pump | 40 |
| 5 | — | — |
| 6 | — | — |
| 7 | Fuel injectors, ignition coils | 20 |
| 8 | 2003-2007: Fuel injectors, ignition coils | 20 |
| 2007-2010: Cayenne: Ignition coils Cayenne S/Cayenne GTS/Cayenne S Transsyberia: Tank vent valve, air-conditioning compressor, air-conditioning control unit, intake pipe switchover, crankcase vent |
15 | |
| 9 | Engine control module, camshaft adjusters, intake pipe switchover (Cayenne) | 30 |
| 2007-2010: Cayenne: Engine control unit |
20 | |
| 2007-2010: Cayenne S/Cayenne GTS/Cayenne S Transsyberia: Quantity control valve, camshaft adjuster, valve lift adjuster |
15 | |
| 10 | 2003-2007: Engine components: cooling air fan, afterrun pump, carbon canister shut-off valve, pressure sensor for air conditioning, tank leakage detection, run-on pump (Cayenne S), carbon canister shut-off valve valve (Cayenne) 2007-2010: Cayenne: Water run-on pump relay, tank leakage detection, carbon canister shut-off valve, fan, pressure sensor for air conditioner 2007-2010: Cayenne S/Cayenne GTS/Cayenne S Transsyberia: Cooling air output stages, pressure sensor for air conditioner,tank leakage detection, exhaust flap control valve, oil-level sensor |
10 |
| 11 | Engine existing wiring, secondary air pump (Cayenne), air-conditioning compressor (Cayenne), oil-level sensor (Cayenne) 2007-2010: Cayenne: Oil-level sensor, air-conditioning compressor, air-conditioning control unit, crankcase vent 2007-2010: Cayenne S/Cayenne GTS/Cayenne S Transsyberia: Engine control unit, fuel valve |
15 |
| 12 | 2003-2007: E-box relay, secondary air pumps, afterrun pump relay | 5 |
| 2007-2010: Camshaft adjustment, tank vent, fuel valve, variable intake manifold | 10 | |
| 13 | Fuel pump, right | 15 |
| 14 | Fuel pump, left | 15 |
| 15 | Engine control module, main relay | 10 |
| 16 | Vakuum pump | 30 |
| 17 | Oxygen sensors ahead of catalytic converter | 15 |
| 18 | Oxygen sensors behind catalytic converter | 7,5 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.