2012 Toyota Sienna Fuse Box Diagram
The 2 fuse boxes on the 2012 Toyota Sienna, with every fuse and relay. Tap a fuse to see what it protects, or search for the thing that stopped working.
Where it isUnder the hood in the engine bay. Page 699 of the owner's manual shows the exact spot.
Slot map: the fuses are listed in the manual's order, not where they sit in the box. Match the numbers to the label inside the box cover, or the drawing on page 699 of your owner's manual.
Where it isInside the car, under or behind the dashboard, driver's side. Page 704 of the owner's manual shows the exact spot.
Slot map: the fuses are listed in the manual's order, not where they sit in the box. Match the numbers to the label inside the box cover, or the drawing on page 704 of your owner's manual.
2012 Sienna engine bay fuses
Engine compartment. Tap a row to find it on the diagram.
| No. | Amps | Type | Protects |
|---|---|---|---|
| 1 | 7.5A | Fuse (size not listed) | H-LP LVL: Headlight leveling systemOnly on: Vehicles with discharge headlights only |
| 2 | 7.5A | Fuse (size not listed) | DSS1: PCS (Pre-collision system), dynamic radar cruise control system |
| 3 | 7.5A | Fuse (size not listed) | ST NO.2: Starting system, multiport fuel injection system/sequential multiport fuel injection system |
| 4 | 20A | Fuse (size not listed) | H-LP LH: Left-hand headlight (low beam)Only on: Vehicles with discharge headlights only |
| 5 | 20A | Fuse (size not listed) | H-LP RH: Right-hand headlight (low beam)Only on: Vehicles with discharge headlights only |
| 6 | 7.5A | Fuse (size not listed) | ECT: Multiport fuel injection system/ sequential multiport fuel injection system, automatic transaxle |
| 7 | 10A | Fuse (size not listed) | EFI NO.2: Multiport fuel injection system/ sequential multiport fuel injection system |
| 8 | 10A | Fuse (size not listed) | H-LP RH HI: Right-hand headlight (high beam) |
| 9 | 10A | Fuse (size not listed) | H-LP LH HI: Left-hand headlight (high beam) |
| 10 | 10A | Fuse (size not listed) | SPARE: Spare-fuse |
| 11 | 15A | Fuse (size not listed) | SPARE: Spare-fuse |
| 12 | 20A | Fuse (size not listed) | SPARE: Spare-fuse |
| 13 | 7.5A | Fuse (size not listed) | MG CLT: A/C magnetic clutch |
| 14 | 20A | Fuse (size not listed) | INV: Inverter |
| 15 | 50A | Fuse (size not listed) | PTC HTR NO.1: PTC heaterOnly on: Vehicles with a 1AR-FE engine only |
| 16 | 30A | Fuse (size not listed) | PTC HTR NO.2: PTC heaterOnly on: Vehicles with a 1AR-FE engine only |
| 17 | 30A | Fuse (size not listed) | PTC HTR NO.3: PTC heaterOnly on: Vehicles with a 1AR-FE engine only |
| 18 | 40A | Fuse (size not listed) | A/C RR: Rear air conditioning system |
| 19 | 30A | Fuse (size not listed) | PBD: Power back door |
| 20 | 30A | Fuse (size not listed) | FOLD SEAT: Power third seatOnly on: Vehicles with a 2GR-FE engine only |
| 21 | 50A | Fuse (size not listed) | HTR: Air conditioning system |
| 22 | 30A | Fuse (size not listed) | PSB: Pre-collision seat beltOnly on: Vehicles with a 2GR-FE engine only |
| 23 | 30A | Fuse (size not listed) | A/A SEAT: AUTO ACCESS SEAT |
| 24 | 60A | Fuse (size not listed) | FAN: Electric cooling fans |
| 25 | 15A | Fuse (size not listed) | HAZ: Turn signal lights, gauges and meters |
| 26 | 15A | Fuse (size not listed) | RSE: Rear seat entertainment system |
| 27 | 10A | Fuse (size not listed) | MIRROR: Outside rear view mirror control, outside rear view mirror heatersOnly on: Vehicles with a 2GR-FE engine only |
| 28 | 30A | Fuse (size not listed) | AMP: Audio system |
| 29 | 30A | Fuse (size not listed) | VSC NO.2: Vehicle dynamics integrated management, ABS, vehicle stability control |
| 30 | 30A | Fuse (size not listed) | ST: Starting system |
| 31 | 40A | Fuse (size not listed) | P/I: Horn, left-hand headlight (low beam), right-hand headlight (low beam) |
| 32 | 40A | Fuse (size not listed) | H-LP MAIN SPARE: Discharge headlight Spare-fuseOnly on: Vehicles with discharge headlights only / Vehicles without discharge headlights only |
| 32 | 30A | Fuse (size not listed) | H-LP MAIN SPARE: Discharge headlight Spare-fuseOnly on: Vehicles with discharge headlights only / Vehicles without discharge headlights only |
| 33 | 30A | Fuse (size not listed) | AM2: “ST NO.2”, “GAUGE NO.2” and “IG2” fusesOnly on: Vehicles without a smart key system only |
| 34 | 50A | Fuse (size not listed) | VSC NO.1: Vehicle dynamics integrated management, ABS, vehicle stability control |
| 35 | 140A | Fuse (size not listed) | ALT: Charging system, horn, left-hand headlight (low beam), right-hand headlight (low beam), fog light, outside rear view mirror heaters, rear window defoggers, windshield wiper de-icer |
| 36 | 15A | Fuse (size not listed) | RAD NO.1: Audio system |
| 37 | 7.5A | Fuse (size not listed) | DOME: Vanity lights, personal/interior lights, personal lights, engine switch light, rear ceiling lights, door courtesy lights, luggage compartment light, gauges and meters, clock |
| 38 | 10A | Fuse (size not listed) | ECU-B: 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 rear view mirror, AUTO ACCESS SEAT remote control, front passenger occupant classification system |
| 39 | 10A | Fuse (size not listed) | ETCS: Multiport fuel injection system/ sequential multiport fuel injection system |
| 40 | 20A | Fuse (size not listed) | A/F: Multiport fuel injection system/ sequential multiport fuel injection system |
| 41 | 20A | Fuse (size not listed) | STRG LOCK: Steering lock systemOnly on: Vehicles with a smart key system only |
| 42 | 7.5A | Fuse (size not listed) | ALT-S: Charging system |
| 43 | 25A | Fuse (size not listed) | INJ: Multiport fuel injection system/ sequential multiport fuel injection system, “IG NO.2” and “IG2” fuses |
| 44 | 7.5A | Fuse (size not listed) | ECU-B NO.2: Air conditioning system |
| 45 | 7.5A | Fuse (size not listed) | AM2 NO.2: Multiplex communication system, starting systemOnly on: Vehicles with a smart key system only |
| 46 | 25A | Fuse (size not listed) | EFI NO.1: Multiport fuel injection system/ sequential multiport fuel injection system, “ECT” and “EFI NO.2” fuses |
| 47 | 5A | Fuse (size not listed) | SMART: Smart key systemOnly on: Vehicles with a smart key system only |
| 48 | 30A | Fuse (size not listed) | DRL: Daytime running light system, “HLP LH (HI)” and “H-LP RH (HI)” fuses |
| 49 | 60A | Fuse (size not listed) | EPS: Electric power steering |
2012 Sienna driver's side panel fuses
Under the driver’s side instrument panel. Tap a row to find it on the diagram.
| No. | Amps | Type | Protects |
|---|---|---|---|
| 1 | 15A | Fuse (size not listed) | P/OUTLET: Power outlets |
| 2 | 7.5A | Fuse (size not listed) | RAD NO.2: Audio system, navigation system, rear seat entertainment system |
| 3 | 10A | Fuse (size not listed) | ECU-ACC: Main body ECU, clock, shift lock system, power rear view mirror control, multiplex communication system |
| 4 | 15A | Fuse (size not listed) | CIG: Power outlets |
| 5 | 10A | Fuse (size not listed) | GAUGE NO.1: Emergency flashers, back up lights, navigation system, multi information display, automatic transaxle, multiport fuel injection system/sequential multiport fuel injection system, charging system |
| 6 | 10A | Fuse (size not listed) | ECU-IG NO.1: Multiplex communication system, stop lights, navigation system, vehicle stability control system, Active Torque Control 4WD, intuitive parking assist, auto anti-glare inside rear view mirror, pre-collision seat belt, outside rear view mirror, seat heater, TPMS, yaw rate & G sensor, steering angle sensor, AUTO ACCESS SEAT, main body ECU |
| 7 | 20A | Fuse (size not listed) | P/W RL: Rear power windows (left-side) |
| 8 | 15A | Fuse (size not listed) | D/L: Power door lock system |
| 9 | 30A | Fuse (size not listed) | P/SEAT FR: Power front seat (right-side) |
| 10 | 30A | Fuse (size not listed) | S/ROOF: Moon roof |
| 11 | 20A | Fuse (size not listed) | P/W RR: Rear power windows (right-side) |
| 12 | 20A | Fuse (size not listed) | P/W FR: Front power windows (right-side) |
| 13 | 30A | Fuse (size not listed) | P/SEAT FL: Power front seat (left-side), driving position memory system |
| 14 | 10A | Fuse (size not listed) | STOP: Stop lights, ABS, vehicle stability control system, rear combination light, high mounted stop light, automatic transaxle, shift lock system, multiplex communication system, power third seat switch, multiport fuel injection system/sequential multiport fuel injection system, trailer lights (stop lights) |
| 15 | 20A | Fuse (size not listed) | P/W FL: Front power windows (left-side) |
| 16 | 25A | Fuse (size not listed) | PSD LH: Power sliding door (left-side) |
| 17 | 7.5A | Fuse (size not listed) | 4WD: Active Torque Control 4WD |
| 18 | 10A | Fuse (size not listed) | AM1: Starting system |
| 19 | 7.5A | Fuse (size not listed) | GAUGE NO.2: Gauges and meters, multi information display |
| 20 | 7.5A | Fuse (size not listed) | IG2: Automatic transaxle, multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, front passenger occupant classification system, steering lock system, smart key system, starting system, fuel pump |
| 21 | 10A | Fuse (size not listed) | PANEL: 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 |
| 22 | 10A | Fuse (size not listed) | TAIL: Tail lights, trailer lights (tail lights), license plate light, rear combination lights |
| 23 | 7.5A | Fuse (size not listed) | WIP ECU: Windshield wiper and rear window wiper |
| 24 | 15A | Fuse (size not listed) | P/VENT: Power quarter windows |
| 25 | 10A | Fuse (size not listed) | AFS: Automatic High Beam |
| 26 | 30A | Fuse (size not listed) | WIP: Windshield wiper |
| 27 | 20A | Fuse (size not listed) | WASHER: Windshield washer |
| 28 | 20A | Fuse (size not listed) | WIP RR: Rear window wiper |
| 29 | 15A | Fuse (size not listed) | WASHER RR: Rear window washer |
| 30 | 10A | Fuse (size not listed) | HTR-IG: Air conditioning system |
| 31 | 7.5A | Fuse (size not listed) | SHIFT LOCK: Shift lock system, multiport fuel injection system/sequential multiport fuel injection system |
| 32 | 10A | Fuse (size not listed) | ECU-IG NO.2: 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 |
| 33 | 25A | Fuse (size not listed) | PSD RH: Power sliding door (right-side) |
| 34 | 7.5A | Fuse (size not listed) | OBD: On-board diagnosis system |
| 35 | 15A | Fuse (size not listed) | S-HTR FL: Seat heater (left-side) |
| 36 | 15A | Fuse (size not listed) | S-HTR FR: Seat heater (right-side) |
Blade fuse colours
- 5A Tan
- 7.5A Brown
- 10A Red
- 15A Blue
- 20A Yellow
- 25A Clear
- 30A Green
- 35A Blue-green
- 40A Orange
Cartridge (J-case) colours
- 20A Blue
- 25A White
- 30A Pink
- 40A Green
- 50A Red
- 60A Yellow
Source: 2012 Toyota Sienna Owner's Manual, "Fuses" section, p. 699 and 704.
Always replace a fuse with one of the same amp rating. If a new fuse blows straight away, the circuit has a fault.