Toyota Sequoia HYBRID | 2022-2026

The third-generation Toyota Sequoia (Model Code: XK80), produced from 2022 to the present, represents a bold evolution of Toyota’s full-size SUV. Built on the TNGA-F platform shared with the latest Tundra, the XK80 Sequoia offers a refined hybrid powertrain, advanced safety features, and modernized interior technology. Its combination of rugged capability and upscale comfort makes it a versatile choice for families and adventurers alike.

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In this article, you will find fuse box diagrams for the Toyota Sequoia, covering model years 2022, 2023, 2024, 2025, and 2026. These diagrams provide essential guidance for identifying fuses and relays, helping you maintain and troubleshoot the electrical systems in your vehicle.

What’s Included:

  • Fuse Box Diagrams – Clear and detailed illustrations to help locate and identify fuses and relays under the hood and in the cabin.
  • Fuse Panel Locations – Guidance on where to find each fuse panel within the vehicle.
  • Fuse Assignments – Explanations of the function of each fuse and relay, aiding accurate diagnostics and repairs.

Whether you’re replacing a faulty fuse, troubleshooting an electrical issue, or performing routine maintenance, this comprehensive guide ensures your Toyota Sequoia (2022–2026) remains dependable and road-ready.

Engine Compartment

Fuse box locations

In the Toyota Sequoia’s engine compartment, there are two fuse boxes: fuse box type A and fuse box type B.

Fuse box diagrams

Type A

Assignment of the fuses in the Engine Compartments Type A Fuse box

Fuse Data
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AmpNo.Short-CodeExplanation
15AF1(S/HTR F/L)Front Seat Heater Left
5AF2ECU-IGP NO.1ECU Ignition Power No. 1
5AF3ECU-IGP NO.2ECU Ignition Power No. 2
15AF5(S/HTR F/R)Front Seat Heater Right
5AF7AIRSUS-IGRAir Suspension Ignition Relay
7.5AF8TOWING-IGRTowing Ignition Relay
5AF10ENG-IGR NO.1Engine Ignition Relay No. 1
7.5AF12INV W/PMP NO.2Inverter Water Pump No. 2
7.5AF13PM-IGCTPower Module – IGCT (Integrated Gate Commutated Thyristor)
7.5AF14IGCT NO.4IGCT Circuit No. 4
10AF15PCUPower Control Unit (Hybrid System)
7.5AF16IGCT NO.1IGCT Circuit No. 1
7.5AF17IGCT NO.2IGCT Circuit No. 2
7.5AF18IGCT NO.3IGCT Circuit No. 3
40AF19IGCT-MAINMain IGCT Circuit
50AF20(A/C RR)Rear Air Conditioning System
30AF21(PBD)Power Back Door (Liftgate)
30AF23D/C CUTDC Cutoff Circuit
20AF24PFS NO.1Power Fuse System No. 1
15AF25(HORN)Horn Circuit
30AF26(TOWING)Trailer Lighting Circuit
20AF29PFS NO.2Power Fuse System No. 2
15AF30INV W/PMP NO.1Inverter Water Pump No. 1
50AF32AIRSUSAir Suspension System
50AF33(PTC HTR NO.1)PTC Heater No. 1
30AF35(4WD-B)4WD Backup Circuit
10AF36TOWING BK/UPTowing Backup Circuit
10AF37G/HGrille Heater
30AF39(TOWING TAIL)Trailer Tail Light Circuit
30AF44(TI&TE)Power Tilt and Telescope Steering
MUSBF49(DC/DC)DC to DC Converter (400W)
MUSBF52(EPS NO.2)Electric Power Steering No. 2
MUSBF53P/IPower Inverter
MUSBF54(EPS NO.1)Electric Power Steering No. 1
MUSBF55(J/B-B)Junction Box Bus Line
MUSBF56PRBPower Relay Block
MUSBF57(TOWING BRK)Trailer Brake Circuit
MUSBF58SUB BATTSub Battery Circuit
MUSBF59(INV) Power outlet (DC/AC inverter)Power Outlet – Inverter
MUSBF60J/B-ALT NO.1Junction Box – Alternator No. 1
MUSBF61J/B-ALT NO.2Junction Box – Alternator No. 2
15AF66(DEICER)Windshield Wiper Deicer
30AF67SHADEPower Sunshade
10AF69LED BEAMLED Headlight System
30AF70(CDS FAN)A/C Condenser Cooling Fan
50AF72(FAN NO.1)Main Radiator Cooling Fan
50AF73(PTC HTR NO.2)PTC Heater No. 2
RelayR1(IGP NO.1)Ignition Power Relay No. 1
RelayR2IGR NO.3Ignition Relay No. 3
RelayR3IGCTIGCT System Relay
RelayR6TOWING BK/UPTrailer Backup Relay
RelayR7(DEICER)Defroster Relay
RelayR10INV W/PMPInverter Water Pump Relay
RelayR11(CDS FAN)Condenser Fan Relay
RelayR12(PTC HTR NO.1)PTC Heater No. 1 Relay
RelayR13(PTC HTR NO.2)PTC Heater No. 2 Relay
RelayR15(TOWING TAIL)Trailer Tail Light Relay
RelayR16(HORN)Horn Relay
RelayR18AIRSUSAir Suspension Relay
RelayR19(INV) Power outlet (DC/AC inverter)Inverter Power Outlet Relay
RelayR20SUB BATTSub Battery Relay

Type B

Assignment of the fuses in the Engine Compartments Type B Fuse box

Fuse Data
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AmpNo.Short-CodeExplanation
7.5AF3EFI NO.2Electronic Fuel Injection Circuit No. 2
15AF4S/HTR R/RRear Seat Heater Right
20AF5WASHERWindshield Washer Motor
7.5AF6ECT-IGPTransmission – Ignition Power
15AF7S/HTR R/LRear Seat Heater Left
7.5AF8EFI-IGPEFI – Ignition Power
5AF9ECU-IGP NO.3ECU – Ignition Power No. 3
5AF10ECU-IGP NO.4ECU – Ignition Power No. 4
50AF11EDU-MAINMain Power for Electronic Drive Unit (Hybrid)
50AF12ABS NO.1ABS Circuit No. 1
50AF13ABS NO.2ABS Circuit No. 2
30AF14ABS MAIN NO.1Main ABS Power No. 1
30AF15A/F-MAINMain Power for Air/Fuel Ratio Sensor
50AF17OIL PMPElectric Oil Pump (Hybrid Transmission)
50AF18EFI MAIN NO.1Main EFI Circuit No. 1
50AF19ABS MTR NO.1ABS Motor Circuit No. 1
30AF20EFI MAIN NO.2Main EFI Circuit No. 2
30AF22STStarter Motor Circuit
25AF24EFI MAIN NO.3Main EFI Circuit No. 3
7.5AF25ABS MAIN NO.2Main ABS Circuit No. 2
15AF26MIR MTRMirror Adjustment Motor
10AF27S-HORNSecondary Horn
20AF29IGN/INJ-MAINMain Ignition and Injector Power
30AF34WIPERWindshield Wiper Motor
7.5AF38ECT-BTransmission Secondary Control Circuit
15AF39STRG ECUSteering ECU
10AF40ETCSElectronic Throttle Control System
7.5AF42ENG-IGR NO.2Engine Ignition Relay No. 2
7.5AF43ENG-IGR NO.3Engine Ignition Relay No. 3
7.5AF464WD-IGRFour-Wheel Drive Ignition Relay
15AF47AVSAdaptive Variable Suspension
20AF48EDU NO.1Electronic Drive Unit No. 1
20AF49EDU NO.2Electronic Drive Unit No. 2
20AF50EDU NO.3Electronic Drive Unit No. 3
20AF51EDU NO.4Electronic Drive Unit No. 4
10AF52A/F NO.1Air/Fuel Ratio Sensor No. 1
10AF53A/F NO.2Air/Fuel Ratio Sensor No. 2
10AF54IGNIgnition Circuit
10AF55INJFuel Injector Circuit
7.5AF58GRILLE SHUTTERActive Grille Shutter System
10AF59EFI NO.3Electronic Fuel Injection Circuit No. 3
15AF60EFI NO.4Electronic Fuel Injection Circuit No. 4
15AF61ECT NO.1Transmission Control Circuit No. 1
7.5AF62FAN NO.2Cooling Fan No. 2
20AF63EFI-B NO.3Backup EFI Circuit No. 3
20AF64EFI-B NO.1Backup EFI Circuit No. 1
20AF65EFI-B NO.2Backup EFI Circuit No. 2
7.5AF66EFI NO.1Electronic Fuel Injection Circuit No. 1
RelayR1IGP NO.2Ignition Power Relay No. 2
RelayR2IGR NO.4Ignition Relay No. 4
RelayR3EFI MAIN NO.2EFI Main Relay No. 2
RelayR4STStarter Relay
RelayR5WIPERWiper Motor Relay
RelayR6A/FAir/Fuel Sensor Relay
RelayR7PWR EXTExternal Power Relay
RelayR8PWR RTCReal-Time Clock Power Relay
RelayR9MIR RTC NO.1Mirror RTC Power Relay No. 1
RelayR10MIR RTC NO.2Mirror RTC Power Relay No. 2
RelayR11IGN/INJIgnition/Injector Relay
RelayR12S-HORNSecondary Horn Relay
RelayR13EFI MAIN NO.3EFI Main Relay No. 3
RelayR15EFI MAIN NO.1EFI Main Relay No. 1
RelayR17OIL PMPOil Pump Relay
RelayR18EDUElectronic Drive Unit Relay

Passenger Compartment

Fuse box location

To access the passenger-side fuse box, remove the dash cover, disconnect the footwell light connector (if equipped), then press the claw to remove the lid.

Fuse box diagram

Assignment of the fuses in the Passenger Compartment Fuse box

Fuse Data
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AmpNo.Short-CodeExplanation
20A3(DOOR R/R)Rear right door
7.5A4(OBD)On-board diagnostics
10A5(ECU-B NO.3)Engine control unit
20A6(DOOR F/R)Front right door
20A7(DOOR R/L)Rear left door
20A8(DOOR F/L)Front left door lock
10A9(DOME CUT)Dome light and interior light
10A10(ECU-DCC NO.1)Engine control unit
10A11(ECU-DCC NO.2)Engine control unit
20A12(RADIO)Radio and audio system
25A13(D/L)Power door lock system
7.5A14(USB NO.1)USB charger
5A15(ECU-ACC)Engine control unit
10A17DOOR BACKTailgate Door Control
10A18FUEL OPN-SUVFuel Door Release (SUV)
15A19(WIPER RR)Rear wiper
5A20(EPS-IGR)Electric power steering
10A21(ECU-IGR NO.1)Engine control unit
5A22(ECU-IGR NO.4)Engine control unit
10A23(BKUP LP)Backup lights
10A24(ECU-IGR NO.2)Engine control unit
10A25(A/BAG-IGR)Airbag
5A26(METER-IGR)Instrument cluster
10A27(ECU-IGR NO.3)Engine control unit
10A28(ECU-B NO.2)Engine control unit
10A29(STOP)Stop lights
5A30(ECU-B NO.1)Engine control unit
25A31(AMP NO.1)Audio system
7.5A32(AM2)Starter system
10A34(HAZ)Hazard light
7.5A35(USB NO.2)USB charger
10A36(DOME)Dome light and interior light
15A37(P/OUTLET NO.1)Cigar lighter / power outlet
25A39(AMP NO.2)Audio system
10A41(DCM)Data communication module (telematics system)

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