The second-generation Toyota Sienna (Model Code: XL20), produced from 2003 to 2010, is a dependable and family-friendly minivan that introduced major improvements in space, safety, and performance over its predecessor. With optional all-wheel drive, a powerful V6 engine, and increased interior comfort, the XL20 Sienna became a top choice for families seeking practicality and reliability.
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Looking for the right fuse or relay?
Search common fuse types, fuse kits and relay options for your vehicle.
In this article, you will find fuse box diagrams for the Toyota Sienna, covering model years 2003, 2004, 2005, 2006, 2007, 2008, 2009, and 2010. These diagrams are designed to help you identify and understand the layout and function of each fuse and relay in the vehicle’s electrical system.
What’s Included:
Fuse Box Diagrams – Easy-to-read diagrams showing the layout and designation of fuses and relays.
Fuse Panel Locations – Clear guidance on where to find the interior and engine compartment fuse panels.
Fuse Assignments – Detailed explanations of each fuse and relay’s role to support troubleshooting and maintenance.
Whether you’re fixing an electrical issue or simply replacing a fuse, this guide is a useful resource to help keep your Toyota Sienna (2003–2010) operating safely and efficiently.
Audio system, navigation system, rear seat entertainment system
3
PWR OUTLET
15
Power outlets
4
CIG
15
Cigarette lighter
5
ECU ACC
7.5
Shift lock control system, air conditioning system, power rear view mirror control
6
GAUGE2
7.5
Meter and gauge
7
IGN
7.5
Multiport fuel injection system/ sequential multiport fuel injection system, SRS airbag system, multiplex communication system
8
INJ
15
2003-2006: Multiport fuel injection system/ sequential multiport fuel injection system
8
IG2
7.5
2007-2010: Multiport fuel injection system/ sequential multiport fuel injection system
9
RR WIP
15
Rear window wiper
10
WIP
30
Windshield wiper and rear window wiper
11
GAUGE1
10
Back-up lights, turn signal lights, emergency flashers
12
S-HTR
15
Seat heaters
13
WSH
20
Windshield washer and rear window washer
14
HTR
10
Air conditioning system
15
–
–
–
16
ECU-IG
10
Intuitive parking assist system, rear view monitor system, multiplex communication system, multiport fuel injection system/sequential multiport fuel injection system, antilock brake system, traction control system, vehicle stability control system, shift lock control system, dynAM1c laser cruise control system, seat heaters, power back door, moon roof, multi-information display, auto antiglare inside rear view mirror, power windows, power outlets (115 V), power third seat, driving position memory system
17
PANEL
10
Air conditioning system, seat heaters, audio system, navigation system, power sliding door, power back door, trip information display, rear window defogger, emergency flashers, instrument panel lights, steering switch lights
18
TAIL
10
Stop/tail lights, license plate lights, parking lights, side maker lights
Stop/tail lights, high mounted stoplight, shift lock control system, antilock brake system, traction control system, vehicle stability control system, multiport fuel injection system/sequential multiport fuel injection system, multiplex communication system
27
P/W
25
Power windows, power rearview mirror
28
OBD
7.5
On-board diagnosis system
29
FOG
15
Front fog lights
30
–
–
–
31
–
–
–
32
P/VENT
15
Power quarter windows
Fuse Data
Full access is available to registered users — log in or register.
The fuse box is located in the passenger’s side of the instrument panel. Open the glove box, slide off the damper, push in each side of the glove box to disconnect the claws.
Fuse Data
Full access is available to registered users — log in or register.
Anti-lock brake system, traction control system, vehicle stability control system
33
ABS2
30
Anti-lock brake system, traction control system, vehicle stability control system
34
ST
30
Starting system
35
L-RR2 SEAT
30
Power third seat
36
R-RR2 SEAT
30
Power third seat
37
H-LP RH
10
Right-hand headlight
37
H-LP RL
10
Right-hand headlight (low beam)
38
H-LP LH
10
Left-hand headlight
38
H-LP LL
10
Left-hand headlight (low beam), front fog lights
39
RSE
7.5
Rear seat entertainment system
40
INJ
10
2007-2010: Multiport fuel injection system/ sequential multiport fuel injection system
41
–
–
Short Pin
42
–
–
–
43
–
–
–
44
–
–
–
45
–
–
–
46
–
–
–
47
–
–
–
48
–
–
–
49
–
–
–
50
–
–
–
51
–
–
–
52
–
–
Short Pin
Relay
R1
Stop lights (BRK)
R2
Air fuel ratio sensor (A/F)
R3
Circuit opening (C/OPN)
R4
Headlight (HEAD)
R5
EFI
R6
Short Pin
R7
Rear windshield defogger (DEFOG)
R8
Horn
R9
Vehicle stability control (VSC MTR)
R10
Vehicle stability control (VSC FAIL)
R11
Daytime running light (DRL NO.4)
R12
Daytime running light (DRL NO.2)
R13
Daytime running light (DRL NO.3)
R14
Electric cooling fan (FAN)
R15
Rear air conditioning system (RR A/C)
R16
Heater (HTR) (manual A/C) Short Pin (automatic A/C)
R17
Starter (ST)
R18
Air conditioner compressor clutch (MG CLT)
R19
–
FAQ
Which fuses control the cigar lighter and power outlets in the Toyota Sienna?
In the Toyota Sienna, multiple fuse circuits handle the standard cigar lighter outlet, auxiliary power sockets, and optional AC inverter. All are located in the Instrument Panel Fuse Box:
Fuse #3 “PWR OUTLET” – Protects the regular 12 V accessory power outlets (power points) Fuse #4 “CIG” – Dedicated to the cigar lighter / cigarette lighter socket Fuse #21 “AC INV” – For 115 V AC power outlets (when equipped with an inverter)
Check these fuses if interior power outlets or the lighter stop functioning, and replace any blown fuse with the correct amp rating as specified in the owner’s manual. Let me know if you’d like the exact amperage or fuse location details!
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