The Toyota Highlander / Kluger family is built on the Toyota K platform, shared with the Camry sedan and other models—notably, the first-generation Highlander shares its architecture with the Lexus RX / Toyota Harrier. The vehicle is classified as a mid-size crossover. In this article, we provide detailed fuse and relay diagrams for the 1st-generation Toyota Highlander / Kluger (chassis code XU20; Toyota K platform) produced from 2000 through 2007.
Here you will find power distribution box locations, photos, and circuit diagrams, including specific locations for the cigarette lighter fuse and fuel pump relay.
Engine Compartment
The main fuse box is located adjacent to the battery. Mounted above it are two auxiliary blocks—one for the Anti-Lock Brake System (ABS) and the other for the Daytime Running Lights (DRL).
Fuse Box #1
General layout.
| Diagram | ||
|---|---|---|
|
||
| No. | Protected Circuit | Rating (A) |
| 1 | Starter Motor | 7.5 |
| 2 | ABS / TRAC / VSC Systems | 7.5 |
| 3 | Right Headlamp (Low Beam) | 15 |
| 4 | Left Headlamp (Low Beam) | 15 |
| 5 | Air-Fuel Ratio (A/F) Sensors | 25 |
| 6 | Generator / Alternator | 7.5 |
| 7 | Trailer Towing Harness | 20 |
| 8 | Horn | 10 |
| 9 | Engine Immobilizer System | 15 |
| 10 | Right Headlamp (High Beam) | 10 |
| 11 | Anti-Theft System, Keyless Entry, Power Door Locks, ABS / TRAC / VSC, A/C System, Instrument Cluster | 7.5 |
| 12 | Engine Control Module (ECM), Sequential Fuel Injection (SFI), Fuel Pump, Engine Immobilizer | 20 |
| 13 | Engine Immobilizer, Power Door Locks | 25 |
| 14 | Left Headlamp (High Beam) | 10 |
| 15 | Audio System | 25 |
| 16 | Interior Lighting, Personal Lamps, Cargo Area Lamp, Illuminated Vanity Mirrors, Ignition Key Cylinder Light, Wireless Keyless Entry | 10 |
| 17 | Hazard Warning Flashers | 15 |
| 18 | Spare | 7.5 |
| 19 | Spare | 15 |
| 20 | Spare | 25 |
| 47 | Sequential Fuel Injection (SFI), Starter System | 30 |
| 48 | ABS Pump Motor | 40 |
| 49 | ABS Solenoid Valves | 40 |
| 50 | HVAC / Climate Control System | 50 |
| 51 | Radiator Cooling Fan | 30 |
| 52 | Rear Window Defogger | 30 |
| 53 | A/C Condenser Fan | 30 |
| 54 | RDI Fan (Spare) | 50 |
| 55 | Fuses: “HEAD LP RH LWR”, “HEAD LP LH LWR”, “HEAD LP RH UPR”, “HEAD LP LH UPR” | 40 |
| 58 | Fuses: “ABS1”, “ABS2”, “RDI”, “CDS”, “RR DEF”, “HEATER”, “AM1”, “AM2”, “TAIL”, “PANEL”, “STOP”, “S/ROOF”, “SEAT HTR” | 140 |
| Main Fuse Box Relay Assignment | |
|
|
| No. | Description |
| R1 | Cooling Fan Relay No. 1 (FAN1) |
| R2 | Starter Relay |
| R3 | Cooling Fan Relay No. 3 (FAN3) |
| R4 | Air-Fuel Ratio (A/F) Sensor Relay |
| R5 | Inverter Relay |
| R6 | Unused |
| R7 | Cooling Fan Relay No. 2 (FAN2) |
| R8 | Unused |
| R9 | A/C Magnetic Clutch Relay (MG CLT) |
| R10 | Horn Relay |
| R11 | Engine Control Module Relay (EFI Main) |
| R12 | Rear Window Defogger Relay |
| R13 | Headlamp Relay (HEAD) |
| R14 | Unused |
Auxiliary Fuse Box #2
Layout and assignment of the auxiliary relay/fuse box in the engine compartment.
| Diagram | ||
|---|---|---|
|
||
| 46 | Daytime Running Lights (DRL) | 7.5 |
| 1 | Daytime Running Light Relays | - |
| 2 | - | |
| 3 | - | |
ABS Relay Box
Diagram.
|
|
| 1 | Unused |
| R1 R2 R3 |
Anti-Lock Brake System (ABS) Relays |
Passenger Compartment
General location of passenger compartment electronic components.
|
|
| No. | Component |
| 1 | Navigation Control Module |
| 2 | Heater Relay |
| 3 | Interior Relay Box |
| 4 | Interior Fuse Box |
| 5 | Hazard / Turn Signal Flasher Relay |
| 6 | Junction Block |
| 7 | A/C Amplifier / Control Unit (w/o Navigation) |
| 8 | Anti-Theft Control Module |
| 9 | Multiplex Network Gateway Module |
| 10 | Transponder Key ECU |
| 11 | Body Control Module (Body ECU) |
| 12 | Junction Block |
| 13 | Engine Control Module (ECM) |
| 14 | A/C Amplifier / Control Unit (w/ Navigation) |
| 15 | Shift Lock Control ECU |
| 16 | Airbag Sensor Assembly (SRS Unit) |
| 17 | Transponder Key Amplifier |
Interior Fuse Box
Located beneath the driver-side dashboard, adjacent to the interior relay box.
General layout.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | Rating (A) |
| 21 | Instrument Cluster, Combination Switches, SRS Airbag System | 7.5 |
| 22 | Audio System | 7.5 |
| 23 | Cigarette Lighter Fuse (Highlander / Kluger) | 15 |
| 24 | Rear Power Windows | 20 |
| 25 | Auxiliary Power Outlet | 15 |
| 26 | Front Fog Lamps | 15 |
| 27 | Supplemental Restraint System (SRS Airbag) | 15 |
| 28 | ABS / TRAC / VSC, Cruise Control, Power Sunroof, Shift Lock System, Hazard Warning Lights, Charging System, Starter Circuit | 15 |
| 29 | Windshield Wipers | 25 |
| 30 | Rear Power Windows | 20 |
| 31 | Front Power Windows, Courtesy Door Lights, Power Door Locks | 25 |
| 32 | Power Sunroof | 20 |
| 33 | HVAC / Climate Control, Rear Window Defogger, Heated Outside Mirrors, Radiator Cooling Fan | 15 |
| 34 | Wireless Keyless Entry, Power Door Locks, Heated Outside Mirrors, ABS / TRAC / VSC, Sequential Fuel Injection (SFI), Backup Lamps | 7.5 |
| 35 | Rear Window Wiper | 15 |
| 36 | Stop Lamps, High-Mount Stop Lamp, ABS / TRAC / VSC, Cruise Control, Shift Lock Control, Sequential Fuel Injection (SFI) | 20 |
| 37 | On-Board Diagnostic System (OBD-II), Automatic Transmission Control, ABS / TRAC / VSC, SRS Airbag System | 7.5 |
| 38 | Front Heated Seats | 15 |
| 39 | Sequential Fuel Injection (SFI), Charging System, Starter Circuit | 15 |
| 40 | Windshield Washer Fluid Level Sensor | 20 |
| 41 | Spare / Rear Fog Lamps (RR FOG) | 7.5 |
| 42 | A/C System, Heated Outside Mirrors | 20 |
| 43 | Front Power Windows | 25 |
| 44 | Parking Lamps, License Plate Lamps, Switch Backlighting, Front Fog Lamps, Turn Signal Repeaters | 10 |
| 45 | Switch Backlighting | 7.5 |
| 56 | Sequential Fuel Injection (SFI), Starter System | 40 |
| 57 | Power Seats | 30 |
| Relay Modules (Rear Side of Junction Block) | ||
|
||
| R1 | Tail Lamps | |
| R2 | Fog Lamps | |
| R3 | Auxiliary Power (ACC) | |
Interior Relay Box
Diagram.
|
|
| No. | Description |
| R1 | Fuel Pump Relay (Circuit Opening Relay) |
| R2 | Heated Seats Relay |
| R3 | Windshield Wiper De-Icer Relay |
Body Electrical Component Locations
Component locations: 1. Sunroof Control ECU, 2. Junction Block, 3. Rear Seat Entertainment Module (w/o Rear Heater), 4. Door Lock Control ECU, 5. Rear Heater Relay, 6. Audio Amplifier, 7. Rear Seat Entertainment Module, 8. Power Window Control ECU