Toyota RAV4 Fuse Replacement
Replacing fuses on a Toyota RAV4 (3rd generation, 2012) is a straightforward task. You will only need low-profile mini fuses of the same amperage as the blown ones.
The RAV4 has two fuse boxes: the first is located under the bonnet near the battery, and the second is in the passenger compartment under the dashboard, to the right of the bonnet release lever. A fuse puller and a layout diagram are usually attached to the cover of the engine bay fuse box. If the puller is missing, insulated needle-nose pliers will work.
Remove the suspected blown fuse. Inspect it against the light: if the metal strip inside is broken, it has blown. If the fusible link looks intact visually but you still have suspicions, the element should be replaced with a new one anyway.
The engine bay fuse box housing is located on the right, near the battery.
Press the cover latch.
Remove the box cover. There is a layout diagram on the reverse side.
View of the fuse box.
Engine bay fuse box decoding:
| No. | Designation / Current | Function |
| 1-3 | - | Not used |
| 4 | ECU B2 / 7.5 A | Air conditioning system, power windows |
| 5 | ALT−S / 7.5 A | Charging system, RSE, Audio system (JBL) |
| 6 | STR LOCK / 20 A | Steering lock system |
| 7-8 | - | Not used |
| 9 | RAD / 20 A | Audio system |
| 10 | ECU−B / 10 A | Body ECU, instrument panel, central locking, clock, audio, navigation, keyless entry |
| 11 | DOME / 10 A | Ignition switch light / start button |
| 12 | - | Not used |
| 13 | HEAD LH / 10 A | Left high beam |
| 14 | HEAD RH / 10 A | Right high beam |
| 15 | HEAD LL / 10 A | Left dipped beam |
| 16 | HEAD RL / 10 A | Right dipped beam |
| 17 | - | Not used |
| 18 | AC INV / 15 A | Power socket |
| 19 | TOWING / 30 A | Trailer connector |
| 20 | STV HTR / 25 A | Independent cabin heater |
| 21 | - | Not used |
| 22 | DEICER / 20 A | Windscreen wiper de-icer |
| 23 | HTR / 50 A | Air conditioning system |
| 24 | PTC3 / 50 A | Auxiliary heater |
| 25 | PTC2 / 50 A | Auxiliary heater |
| 26 | PTC1 / 50 A | Auxiliary heater |
| 27 | HEAD MAIN / 50 A | Main headlight fuse (HEAD LL, RL, LH, RH) |
| 28 | - | Not used |
| 29 | RDI / 30 A | Cooling system fan |
| 30 | CDS / 30 A | Cooling system fan |
| 31 | H−LP CLN / 30 A | Headlight cleaners |
Relays:
- R1 — Lighting switch / high beam
- R2 — Headlights / dipped beam
- R3 — Daytime running lights
- R4 — Daytime running lights
- R5 — Cooling system fan
- R6 — Cooling system fan
- R7 — Cooling system fan
- R8 — Not used
- R9 — Windscreen wiper de-icer
- R10 — Daytime running lights
- R11 — Auxiliary heater
- R12 — Auxiliary heater
- R13 — Cooling system fan
The second fuse box is located in the passenger compartment under the dashboard, to the right of the bonnet release lever.
Passenger compartment fuse box decoding:
| No. | Designation / Current | Function |
| 1 | - | Not used |
| 2 | S−HTR / 15 A | Seat heating |
| 3 | WIP / 25 A | Windscreen wipers |
| 4 | RR WIP / 15 A | Rear wiper |
| 5 | WSH / 15 A | Screen washers |
| 6 | ECU−IG1 / 10 A | Fan, ABS, ESP, 4WD, climate control, Body ECU, sunroof, mirrors, brake lights, EPS |
| 7 | ECU-IG2 / 10 A | Air conditioning, rear window demister |
| 8 | OBD / 7.5 A | Diagnostic connector |
| 9 | STOP / 10 A | Brake lights |
| 10 | - | Not used |
| 11 | DOOR / 25 A | Central locking, Body ECU |
| 12 | ACC-B / 25 A | Not used |
| 13 | 4WD / 7.5 A | Four-wheel drive system |
| 14 | FR FOG / 15 A | Front fog lights |
| 15 | AM1 / 7.5 A | Starting system |
| 16 | TAIL / 10 A | Sidelights (tail), number plate light, fog lights |
| 17 | PANEL / 7.5 A | Audio, instrument illumination, clock |
| 18 | GAUGE1 / 10 A | Reversing lights, charging system |
| 19 | D FR DOOR / 20 A | Power windows (front) |
| 20 | RL DOOR / 20 A | Power window (rear left) |
| 21 | RR DOOR / 20 A | Power window (rear right) |
| 22 | S/ROOF / 25 A | Sunroof |
| 23 | CIG / 15 A | Cigarette lighter |
| 24 | ACC / 7.5 A | Audio, power sockets, mirrors, clock, ECU |
| 25 | - | Not used |
| 26 | MIR HTR / 10 A | Mirror heaters |
| 27 | PWR OUTLET / 15 A | Power socket |
| 28 | - | Not used |
| 29 | RR FOG / 10 A | Rear fog light |
| 30 | IGN / 7.5 A | SRS Airbag, fuel injection, brake lights, start system |
| 31 | GAUGE2 / 7.5 A | Instrument cluster |
Press the catch to remove the cover.
Fuses in the passenger compartment.
Using needle-nose pliers, pull out the required fuse.
Inspect the fusible link. If the strip inside is broken, the fuse has blown.
Insert a new, working fuse.
Refit the engine bay box cover.
Remove the blown fuse in the cabin.
It is replaced in the same way as under the bonnet.
Put the cabin box cover back in place.
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