Toyota Aristo 1 (Lexus gs300) – fuses and relays

Toyota Aristo 1 generation was produced in 1991, 1992, 1993, 1994, 1995, 1996 and 1997. During this time, the model was restyled. The most popular models were in the 147 and 141 bodies. Lexus GS 300 with left-hand drive is made on the general base of Toyota Aristo 1. These cars have similar electrical circuits. In our publication, you will find information on the location of electronic control units, a description of fuses and relays Toyota Aristo 147 (Lexus gs300) with block diagrams and photo examples of their implementation. We will highlight the cigarette lighter fuse. In conclusion, we offer complete electrical circuits for download.

Blocks in the cabin

Location

Block layout diagram

1. Integrated relay
2. Daytime running lights relay
3. Relay block
4. Anti-theft system control unit
5. Fuse box
6. Windscreen wiper relay
7. Distribution block
8. Air conditioning control unit
9. Traction control unit
10. Air conditioner booster
11. Anti-lock braking system and traction control system control unit
12. Heater relay
13. Engine Control Unit (M/T) / Engine and Automatic Transmission Control Unit (A/T)
14. Gear selector lock control unit
15. Central airbag unit
16. Cruise control unit
17. PPS Block
18. Steering Column Control Unit

Fuse box

It is located at the bottom of the instrument panel on the steering side, behind the protective cover.

Option 1

Scheme

Designation

SEAT HTR	Heated seats
STOP	Brake lights, additional brake light, gear selector lock, ABS, TRC, multi-port fuel injection system/sequential multi-port fuel injection system
GAUGE	Instrument cluster, reversing lights, heated rear window, heated mirrors, heater control unit, air conditioning, service indicators, warning buzzer, charging system, automatic transmission indicators, daytime running lights
ECU-IG	Gear selector lock, telephone, central locking, seat belts, ABS, TRC, power steering, cruise control, tilt and height steering column adjustment, antenna, cooling fan, instrument panel lighting, automatic lighting system, gear selector
CIG	Cigarette lighter (front/rear), clock, air conditioning, audio system, gear selector lock, SRS airbag system, central locking, electric mirrors, antenna, anti-theft system
–	–
TURN	Direction indicators
WIPER	Windscreen wiper and washer, headlight cleaners
PANEL	Automatic transmission indicators, heater control unit, hazard warning lights, glove compartment light, ashtray light, clock, cigarette lighter light, audio system, gear selector, instrument panel light, daytime running lights
SRS	SRS airbag system
TAIL	Side lights, number plate lights
MIR HTR	Heated mirrors
POWER	Power windows, sunroof, electric seats, central locking, steering column adjustment, power relay (POWER)
DEFOG	Rear window heating, fuse: “MIR HTR”
DOOR	Doors, central locking.

The fuse marked CIG is responsible for the cigarette lighter.

Relay

Relays can be attached to the back side of the block.

Scheme

R1	Jumper (Short pin)
R2	Side light
R3	Rear window heating

Relay block

R1	Direction indicators (hazard warning lights)
R2	Daytime running lights #4
R3	Fog light
R4	Power relay (window lifters, sunroof, central locking, steering column, electric seats)

Additional elements

1. Hatch relay
2. Door lock control unit
3. Audio amplifier
4. Antenna relay
5. Fuel pump control unit

Blocks under the hood

Location

Block layout diagram

1. Fuse and relay box
2. Headlight Washer Relay
3. Traction control relay

Fuse and relay box

Photo example

1	15A FOG – Fog light
2	7.5A DRL – Daytime Running Lights
3	10A TRAC – Traction Control
4	10A DOME – Interior lighting, sunroof, cruise control, door open indicator, personal lighting, luggage compartment lighting, door lighting, footwell lighting, ignition switch lighting, ABS clock, antenna, audio system, anti-theft system, wireless remote control system
5	7.5A ECU-B – Wireless Remote Control System, ABS, TRC, Cruise Control, Daytime Running Lights, Air Conditioning
6	7.5A ALT SENSING – Charging System
7	15A AM2 – Multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, battery charge indicator, ignition system, instrument cluster, service indicators, warning buzzer
8	15A TEL – Telephone
9	20A HAZ. HORN – Emergency alarm, sound signal
10	20A EFI – Automatic Transmission Control Module, Multiport Fuel Injection System/Sequential Multiport Fuel Injection System
11	25A RADIO NO. 1 – Audio system, antenna
12	30A IG2 – Ignition System
13	7.5A OBD II – 1996-1997: Diagnostic Connector
14	15A HEAD RH – Right headlight
	10A HEAD RH-UPR – High Right Beam
15	15A HEAD LH – Left headlight
	10A HEAD LH-UPR – Left High Beam
16	10A HEAD RH-LWR – Low beam right
17	10A HEAD LH-LWR – Low beam left
18	30A RDI FAN – Cooling system fan
19	–
20	40A AM1 – Ignition switch, fuses: “ECU–IG”, “WIPER”, “GAUGE”, “TURN”, “SEAT–HTR”, “CIG”
21	50A HEATER – Heater relay
22	60A ABS – Cooling Fan Main Relay, Traction Control Relay, Anti-Lock Brake System Relay, Fuses: “TRAC”
23	100A ALT – Parking light relay, generator, fuses: “FOG”, “AM1”, “HEATER”, “DEFOG”, “ABS”, “STOP”, “SRS”, “POWER”
24	50A MAIN – Headlight relay, daytime running light relay #2, starter relay
25	40A ABS No.2 – Anti-slip motor, Anti-lock brake system motor
Relay
R1	Daytime running lights #3
R2	Cooling system fan
R3	Daytime running lights #2
R4	Heater
R5	Jumper (Short pin)
R6	Air conditioning compressor clutch
R7	Starter
R8	ABS motor
R9	ABS
R10	Main cooling system fan
R11	Ignition (IG2)
R12	Headlights
R13	Anti-slip system
R14	Sound signal
R15	Engine Control Unit (EFI)