LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Porsche >> 2009 >> Boxster Base, Standard >> Repair and Diagnosis >> Electrical >> Fuses & Circuit Breakers >> Identification >> Passenger Compartment >> Fuse Block
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuse Block

Fuses are housed in a block under a panel at far left side of driver footwell. See Figure. Fuses are arranged in 6 blocks of 10 fuses. For fuse block layout, see Fig 1.

Fig 1: Top View Of Fuse Block
G0049302Courtesy of PORSCHE OF NORTH AMERICA, INC.
Fig 2: Accessing Passenger Compartment Fuse Block & Relay Support 1
G00379405Courtesy of PORSCHE OF NORTH AMERICA, INC.
Passenger Compartment Fuse Block Fuses

Fuse No. Amps Fuse Function
Fuse Holder A
A1 30A Power windows CU, left door
A2 15A Central locking CU, left door
A3 15A Rear motors CU
A4 30A Power windows CU, right door
A5 15A Central locking CU, right door
A6 15A Left rear CU
A7 15A Right rear CU
A8 7.5A Footwell plug socket, Storage bin plug socket
A9 25A Rear window heater
A10 15A Cigar lighter (center console)
Fuse Holder B
B1 15A Inst.cluster, Diagnostic plug socket CU, Weight recognition, PDK CU
B2 7.5A Interior sensor
B3 15A Combined steering column Switch, RDK CU, Alarm siren, Sportchrono, Inclination Sensor, Memory electronics CU (left), Memory electronics CU (right)
B4 25A Headlight washer relay
B5 - Not Used
B6 7.5A Electrical system CU, Tank actuator cover
B7 7.5A Park assist CU
B8 - Not Used
B9 7.5A Select lever CU
B10 30A Climatronic CU, A/C compressor
Fuse Holder C
C1 - Not Used
C2 7.5A Diagnostic plug socket, Refrigerant pressure sensor, Clutch switch, Heated spray jet, PASM CU, Comfort seat (left/right)
C3 10A Light switch, Front end CU, Corner sensitive headlights CU
C4 10A Stop light switch
C5 15A Select lever CU, PDK CU
C6 15A Bridge plug term.15, Rear window wiper, Corner sensitive headlights CU, Anti-dazzle interior mirror, Homelink transmitter
C7 7.5A Combined steering column switch
C8 10A PSM CU, PSM on/off button, Rate-of-turn sensor
C9 15A PASM CU
C10 25A PSM CU, Valve relay
Fuse Holder D
D1 25A Fuel pump relay 1
D2 - Not Used
D3 7.5A DME CU, Term.30
D4 20A Fuel injector
D5 25A Resonance flap shift valve, Camshaft adjuster 1, Camshaft adjuster 2, Distribution pipe flap, Valve lift control (cyls 1-3), Valve lift control (cyls 4-6)
D6 25A Oxygen sensor heater (before cat.), Oxygen sensor heater (after cat.)
D7 15A Ignition coils
D8 7.5A Sport exhaust valve, Coolinf water shut-off valve, Air cleaner flap, HFM, Camshaft sensor 1, Camshaft sensor 2, Tank vent valve, Oil level sensor, Term.87 DME supply, Tank leakage diagnostic module
D9 10A TV tuner, Telephone preparation (mobile phone), Telephone handset
D10 15A PCM 3, CDR 30, Japan navigation system, China Navigation, CAN adapter
Fuse Holder E
E1 30A Power seat adjustment (left), Seat memory (left)
E2 30A Power seat adjustment (right), Seat memory (right)
E3 30A Power window motor (rear), Power top CU,
E4 30A Amplifer (ASK), Amplifer (Bose), Subwoofer