The third-generation Toyota Sienna (Model Code: XL30), produced from 2010 to 2020, is a spacious and reliable minivan well-suited for families and long-distance travel. Known for its available all-wheel drive, versatile seating configurations, and smooth V6 engine, the XL30 Sienna blends comfort, practicality, and durability in a modern package.
In this article, you will find fuse box diagrams for the Toyota Sienna, covering model years 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, and 2020. These diagrams provide essential information to help identify and understand the function of each fuse and relay in the vehicle’s electrical system.
What’s Included:
Fuse Box Diagrams – Clear visuals showing the layout of fuses and relays.
Fuse Panel Locations – Instructions to help you locate the interior and engine compartment fuse boxes.
Fuse Assignments – Detailed explanations of the purpose of each fuse and relay to aid in diagnostics and repairs.
Whether you’re diagnosing a malfunction, replacing a blown fuse, or performing routine maintenance, this guide is a valuable resource for keeping your Toyota Sienna (2010–2020) running reliably and efficiently.
Air conditioning system, navigation system, front passenger’s seat belt reminder light, audio system, steering switch, intuitive parking assist switch, personal/interior light main switch, shift lever light, headlight levering switch, power door lock main switch, clock, power quarter window switch, seat heater switch, emergency flashers, rear window defogger switch, vehicle stability control off switch, console box light, power slide switch light
Pre-collision system, pre-collision seat belt, dynamic radar cruise control, electric power steering, rain-sensing windshield wipers, driving position memory system, power sliding door, power third seat, power back door, multiplex communication system
Vanity lights, personal/interior lights, personal lights, engine switch light, rear ceiling lights, door courtesy lights, luggage compartment light, gauges and meters, clock
38
ECU-B
10
Main body ECU, smart key system, wireless remote control, power back door, power sliding door, rear view monitor, multi information display, power window, outside rear view mirror control, steering angle sensor, auto-anti glare inside rearview mirror, AUTO ACCESS SEAT remote control, front passenger occupant classification system
39
ETCS
10
Multiport furl injection system/sequential multiport fuel injection system
40
A/F
20
Multiport furl injection system/sequential multiport fuel injection system
41
STRG LOCK
20
Steering lock system (Vehicles with a smart key system only)
Which fuses protect the cigar lighter (12 V power outlet) in the Toyota Sienna?
In the Toyota Sienna, these functions are protected by two fuses residing in the Instrument Panel Fuse Box:
Fuse #1 labeled “P/OUTLET” — powers the 12 V accessory power outlet (often referred to as the power point). Fuse #4 labeled “CIG” — dedicated to the cigar lighter / cigarette socket.
Both fuses are located in the dashboard fuse block. If your power socket or lighter is not working, be sure to check these fuses and replace them if needed, using the correct amperage rating.
