Checking and Replacing Fuses
Part of 4-3. Do-it-yourself maintenance
Introduction
If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary.
Procedure
- Turn the "POWER" switch off.
- Open the fuse box cover.
- After a system failure, refer to "Fuse layout and amperage ratings" for details about which fuse to check.
- Remove the fuse.
- Check if the fuse is blown.
Fuse Types and Replacement
There are different types of fuses (Type A, Type B, Type C). Type A fuses can be removed using the pullout tool.
Type A Fuse Description
Normal fuse: [Image description: A standard fuse with an intact filament.]
Blown fuse: [Image description: A fuse with a broken filament, indicating it has blown.]
Replace the blown fuse with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.
Type B Fuse Description
Normal fuse: [Image description: A standard Type B fuse.]
Blown fuse: [Image description: A Type B fuse that has blown.]
Replace the blown fuse with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.
Type C Fuse Description
Normal fuse: [Image description: A standard Type C fuse.]
Blown fuse: [Image description: A Type C fuse that has blown.]
Replace the blown fuse with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.
Fuse Layout and Amperage Ratings
Engine Compartment Fuses
[Image description: A diagram illustrating the fuse box layout in the engine compartment, showing numbered fuse positions from 1 to 43.]
| FUSE | Ampere | Circuit | |
|---|---|---|---|
| 1 | HTR | 50A | Air conditioning system |
| 2 | RDI | 30A | Electric cooling fans |
| 3 | CDS | 30A | Electric cooling fans |
| 4 | S-HORN | 10A | No circuit |
| 5 | ENG W/P | 30A | Cooling system |
| 6 | ABS MAIN NO.2 | 7.5A | Anti-lock brake system |
| 7 | H-LP CLN | 30A | Headlight cleaner |
| 8 | P-CON MTR | 30A | P position control system, transmission |
| 9 | AMP | 30A | Audio system |
| 10 | IGCT | 30A | PCU, IGCT NO.2, IGCT NO.3 |
| 11 | DC/DC-S | 5A | Inverter and converter |
| FUSE | Ampere | Circuit | |
|---|---|---|---|
| 12 | P CON MAIN | 7.5A | P position control system, transmission |
| 13 | AM2 | 7.5A | Power management system |
| 14 | ECU-B2 | 7.5A | Smart key system |
| 15 | MAYDAY | 10A | MAYDAY |
| 16 | ECU-B3 | 10A | Air conditioning system |
| 17 | TURN & HAZ | 10A | Turn signal lights |
| 18 | ETCS | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 19 | ABS MAIN NO.1 | 20A | Anti-lock brake system |
| 20 | P/I 2 | 40A | Horn, right-hand headlight (low beam), left-hand headlight (low beam), back-up lights |
| 21 | ABS MTR 1 | 30A | Anti-lock brake system |
| 22 | ABS MTR 2 | 30A | Anti-lock brake system |
| 23 | H-LP HI MAIN | 20A | H-LP HI RH, H-LP HI LH, headlight switch, daytime running light system |
| 24 | HV BATT | 10A | No circuit |
| 25 | DRL | 7.5A | Daytime running light system |
| 26 | P/I 1 | 60A | IG2, EFI MAIN, BATT FAN |
| 27 | EPS | 60A | Electric power steering |
| 28 | PCU | 10A | Inverter and converter |
| 29 | IGCT NO.2 | 10A | Hybrid system, P position control system, inverter and converter |
| FUSE | Ampere | Circuit | |
|---|---|---|---|
| 30 | MIR HTR | 10A | Outside rear view mirror defoggers |
| 31 | RAD NO.1 | 15A | Audio system, navigation system |
| 32 | DOME | 10A | Door courtesy lights, personal lights, interior lights, front foot lights, vanity lights, inside rear view mirror, garage door opener, overhead console |
| 33 | ECU-B | 7.5A | Smart key system, multiplex communication system, personal lights, gauges and meters, occupant detection system (ECU and sensors) |
| 34 | H-LP LH HI | 10A | Left-hand headlight (high beam) |
| 35 | H-LP RH HI | 10A | Right-hand headlight (high beam) |
| 36 | EFI NO.2 | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 37 | IGCT NO.3 | 10A | Cooling system |
| 38 | SPARE | 30A | Spare fuse |
| 39 | SPARE | 10A | Spare fuse |
| 40 | SPARE | 7.5A | Spare fuse |
| 41 | EFI MAIN | 20A | Multiport fuel injection system/ sequential multiport fuel injection system, EFI NO.2 |
| 42 | BATT FAN | 10A | Battery cooling fan |
| 43 | IG2 | 20A | Multiport fuel injection system/ sequential multiport fuel injection system, MET-IGN, IGN, hybrid system |
Left Side Instrument Panel Fuses
[Image description: A diagram illustrating the fuse box layout in the left side instrument panel, showing numbered fuse positions from 1 to 30.]
| FUSE | Ampere | Circuit | |
|---|---|---|---|
| 1 | CIG | 15A | Power outlets |
| 2 | ECU-ACC | 10A | Multiplex communication system, outside rear view mirrors, driver support system, audio system, navigation system |
| 3 | PWR OUTLET | 15A | Power outlets |
| 4 | SEAT HTR FR | 10A | Seat heater |
| 5 | SEAT HTR FL | 10A | Seat heater |
| 6 | DOOR NO.1 | 25A | Power door lock system |
| 7 | PSB | 30A | Pre-Collision System |
| 8 | PWR SEAT FR | 30A | Front seat lumbar support |
| 9 | DBL LOCK | 25A | No circuit |
| 10 | FR FOG | 15A | Front fog lights |
| 11 | PWR SEAT FL | 30A | Front seat lumbar support |
| 12 | OBD | 7.5A | On-board diagnosis system |
| 13 | RR FOG | 7.5A | No circuit |
| FUSE | Ampere | Circuit | |
|---|---|---|---|
| 14 | STOP | 10A | Stop lights, high mounted stoplight, brake system, driver support system, vehicle proximity notification system |
| 15 | P FR DOOR | 25A | Power windows |
| 16 | D FR DOOR | 25A | Power windows |
| 17 | DOOR RR | 25A | Power windows |
| 18 | DOOR RL | 25A | Power windows |
| 19 | S/ROOF | 30A | Panoramic roof shades |
| 20 | ECU-IG NO.1 | 10A | Electric cooling fans, multiplex communication system |
| 21 | ECU-IG NO.2 | 10A | Driver support system, Pre-Collision System, inside rear view mirror, garage door opener, yaw rate & G sensor, brake system, electric power steering, navigation system, panoramic roof shades, tire pressure warning system, seat belt pretensioners, audio system, emergency flashers, turn signal lights, windshield wipers, headlight cleaner |
| 22 | GAUGE | 10A | Headlight leveling system, seat belt reminder light, gauges and meters |
| 23 | A/C | 10A | Air conditioning system |
| 24 | WASHER | 15A | Windshield washer |
| 25 | RR WIP | 20A | Rear window wiper and washer |
| FUSE | Ampere | Circuit | |
|---|---|---|---|
| 26 | WIP | 30A | Windshield wipers |
| 27 | MET | 7.5A | Gauges and meters |
| 28 | IGN | 10A | Brake system, driver support system, multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, occupant detection system (ECU and sensors), smart key system |
| 29 | PANEL | 10A | Air conditioning system, emergency flashers, seat heaters, transmission, P position switch, navigation system, advanced parking guidance system, headlight cleaner, seat belt reminder light, headlight leveling system, glove box light, clock, audio system |
| 30 | TAIL | 10A | Headlight leveling system, parking lights, tail lights, license plate lights, front fog lights, side marker lights |
Important Information After Fuse Replacement
- If the lights do not turn on even after the fuse has been replaced, a bulb may need replacement. (Refer to P. 419)
- If the replaced fuse blows again, have the vehicle inspected by your Toyota dealer.
Overload in a Circuit
Fuses are designed to blow, protecting the wiring harness from damage.
When Replacing Light Bulbs
Toyota recommends using genuine Toyota products designed for this vehicle. Non-genuine parts or parts not designed for this vehicle may be unusable, as certain bulbs are connected to circuits designed to prevent overload.
CAUTION
⚠️ To prevent system breakdowns and vehicle fire:
Observe the following precautions. Failure to do so may cause damage, and possibly a fire or injury.
- Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse.
- Always use a genuine Toyota fuse or equivalent.
- Never replace a fuse with a wire, even as a temporary fix. This can cause extensive damage or even fire.
- Do not modify the fuses or fuse boxes.
Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring near the fuse box. Doing so may cause electric shock, resulting in death or serious injury.
