Toyota Gaia was produced in 1998, 1999, 2000, 2001, 2002, 2003 and 2004. During this time, the model has been restyled. In this publication, we will show the location of the electronic control units, a description of the Toyota Gaia fuses and relays with box diagrams and photo examples of their execution. Note the cigarette lighter fuse.
Check the purpose of the elements with your diagrams on the box cover.
Contents
Passenger compartment
Location
General layout of boxes in the cabin
Assignment
- fuel pump relay,
- electronic engine control unit,
- remote control receiver for central locking (from 04.2001),
- rear view camera control unit (up to 04.2000),
- central mounting block,
- audio system amplifier (up to 04.2001),
- TV tuner (up to 04.2000),
- rear view camera control unit (from 04.2001),
- relay box No. 1 (R / B No. 1),
- rear heater relay,
- mounting block under the dashboard,
- central locking relay (up to 04.2001),
- relay box at the bottom of the A-pillar,
- ACC relay,
- CD changer (up to 04.2001),
- deceleration sensor,
- SRS control unit,
- parking system control unit,
- electronic control unit ABS and 4WD, electronic control unit ABS (2WD, up to 04.2001).
Fuse box
The fuse box is located at the bottom of the dashboard behind a protective cover.
Example of a diagram from the box cover
Diagram
Protected components
| 1 | 7,5A TURN – Direction indicators |
| 2 | 7,5A IDLE UP – Electronic engine control unit |
| 3 | 30A DOOR – Door locks |
| 4 | 7,5A STARTER – Electronic engine control unit |
| 5 | 10A TAIL – Dimensions room lighting |
| 6 | 20A WIPER – Wipers and washers |
| 7 | 10A ECU-IG – ABS, parking system, electronic control unit for all-wheel drive system |
| 8 | 15A METER АС – Air conditioning and heater |
| 9 | 15A STOP – Stop lights, additional stop light |
| 10 | 15A LITER, RADIO – Clock, radio, CD player, cigarette lighter fuse, mirror control system |
| 11 | 7,5A IG – Electronic engine control unit |
| 12 | 30A RR DEF – Heated rear window |
| 13 | 10A RR HEATER – Rear heater |
| 14 | 15A FR FOG – Front fog lights |
| 40A AM1 – Power group contactor of ignition locks | |
| 30A POWER – Power windows |
The fuse number 10, 15A, is responsible for the cigarette lighter.
Engine compartment
Location
General arrangement of boxes under the hood
Appointment
- ABS modulator (up to 04.2001),
- ABS modulator and electronic control unit ABS / EBD / BA (2WD, from 04.2001),
- ABS modulator (4WD, from 04.2001),
- vacuum sensor in the brake booster circuit (1AZ-FSE),
- injector amplifier (1AZ-FSE),
- relay box No. 7 (R / B No. 7) (except ZS-TE),
- relay box (R / B No. 5) No. 5 (ZS-TE),
- right front SRS sensor,
- glow plug relay (ZS-TE),
- fuse and relay box # 2 (J / B # 2), fuse box and relay box # 2 (R / B # 2),
- left front SRS sensor.
Fuse and relay box
Located on the left side of the engine compartment.
Diagram
Designation
| ECU-B – Airbag, ABS system | 7,5 А |
| HAZARD – Alarm | 10 А |
| RR CLR – Rear air conditioner | 10 А |
| AM 2 – Ignition lock | 30 А |
| AM 2, FUEL HTR – Ignition switch, fuel heater | 30 А |
| RAD №1 – Radio tape recorder | 15 А |
| PWR 2 – Driver’s windows | 30 А |
| ALT-S – Generator | 5 А |
| DOME – Interior lighting, local lighting, luggage compartment lighting, clock | 10 А |
| HEAD (LH) – Headlights (left) | 15 А |
| HEAD (RH) – Headlights (right) | 15 А |
| EFI – Fuel injection system | 15 А |
| HORN – Sound signal | 10 А |
| HORN, HAZ – Sound signal, alarm | 15 А |
| ACC SOCKET, PWR OUTLET – Socket (trunk) | 15 А |
| EFI – Injection system relay | |
| ST – Starter relay | |
| HORN – Signal relay | |
| HEAD – Headlight relay | |
| ENG MAIN – Engine Main Relay | |
| FAN – radiator fan relay | |
| HTR – heater relay | |
| ALT – Generator | 120А |
| HTR – dispenser | 50А |
| ABS – ABS | 60А |
Realy box
Photo example of execution
Assignment
- ABS – ABS relay
- ABS MTR – ABS motor relay
- HEAD LO – Headlight fuse
Realy box 2
Separately, outside the boxes, some additional elements can be attached.
Toyota gaia troubleshooting…
My dashboard lights and corner lights are not working