Fuses and relays Lexus ES 350 (XV40), 2006–2012

The fifth-generation Lexus ES front-wheel-drive sedan debuted in 2006. Following a long tenure of 3.0-liter powertrains (with the exception of the first generation’s 2.5-liter engine and the short-lived fourth generation’s 3.3-liter engine), the model was equipped with a 3.5-liter V6 engine for the first time. Built on the Toyota Camry platform, its premium status is emphasized by refined luxury, meticulous attention to detail, and high-end trim options featuring genuine wood, polished metal, and leather accents.

The electrical circuits of this vehicle are protected by a system of fuses and relays. These components are installed in distribution blocks (junction boxes) located in both the engine bay and the passenger compartment. Below are the fuse diagrams and assignments for the 5th-generation Lexus ES 350 (XV40 series; chassis code GSV40), model years 2006, 2007, 2008, 2009, 2010, 2011, and 2012.

Passenger Compartment Fuse Box

Component Location: 1. Fuse Block, 2. Body Electrical Control Module (Body ECU), 3. Turn Signal Flasher Relay, 4. Adaptive Front-Lighting System (AFS) ECU, 5. Junction Block No. 3, 6. Junction Block No. 1, 7. Junction Block No. 2, 8. Junction Block No. 4, 9. Wiper Relay, 10. Air Conditioning (A/C) Amplifier, 11. Outer Rearview Mirror Control Module, 12. Smart Key Certification ECU, 13. Active Control Engine Mount ECU, 14. Distance Control ECU (Adaptive Cruise), 15. Network Gateway ECU, 16. Tire Pressure Monitoring (TPMS) ECU, 17. Airbag Center Sensor Assembly, 18. Shift Lock Control ECU, 19. Junction Block No. 5, 20. Steering Lock ECU, 21. Power Tilt and Telescopic Steering Column ECU, 22. ID Code Box.

Located on the driver’s side, beneath the lower instrument panel.

Fuse box access diagram.

Passenger Compartment Fuse Box Diagram
No.	Protected Component / Circuit	A
1	Rear RH power window	25
2	Rear LH power window	25
3	Fuel lid opener	7.5
4	Front fog lights	15
5	Data link connector (DLC3 / OBD-II)	7.5
6	ECU power supply	7.5
7	Stop lights	10
8	Power tilt and telescopic steering column	30
9	-	-
10	-	-
11	Air conditioning system	7.5
12	Power windows	25
13	Body Control Module (Body ECU)	25
14	Moonroof / Sunroof	30
15	Parking lights, license plate lights	15
16	Light control switch	7.5
17	Moonroof, seat heaters, power windows, clock, rain sensor, cooling fan, driver position memory system	10
18	ABS, Vehicle Stability Control (VSC), Traction Control (TRAC), Brake Assist (BA), shift lock system, stop lights, cruise control system	7.5
19	Air conditioning system, rear window defogger	10
20	Windshield washer	10
21	Seat heaters, air conditioning system	20
22	Anti-theft alarm system, backup lights, charging system, power rear sunshade	10
23	Windshield wipers	25
24	Headlight leveling system	7.5
25	-	-
26	Sequential Multiport Fuel Injection (SFI) system, SRS airbags, steering lock system	10
27	Combination meter (instrument cluster)	7.5
28	Clock, Body ECU	7.5
29	Cigarette lighter fuse (Lexus ES 350)	20
30	Auxiliary power outlet	20
31	Audio system	7.5
32	Outside mirror heaters	15
Top & Rear Panel
1	Power seats	30
2	Power windows	30
Relays
R1	Front fog light relay
R2	Parking light relay
R3	Accessory relay (ACC)
R4	Short pin (jumper block)
R5	Ignition relay (IG1)

Engine Compartment Fuse Box

Component Location: 1. Fuse Box, 2. Transmission Control Module (TCM), 3. Cooling Fan Control ECU, 4. VSC / Skid Control ECU, 5. Engine Control Module (ECM)

Fuse box access.

Engine Compartment Fuse Box Assignment
No.	Protected Component / Circuit	A
1	Alternator	10
2	Rear fog lights	10
3	-	-
4	-	-
5	Starting system	7.5
6	Charging system	7.5
7	Emergency assistance system (Lexus Link / Safety Connect)	10
8	-	-
9	Air conditioning system	15
10	Active control engine mounts	10
11	Electronic Throttle Control System (ETCS)	10
12	Turn signals and hazard warning lights	15
13	Sequential Multiport Fuel Injection (SFI) system, fuses: “GAUGE NO. 2”, “IGN”	20
14	Steering lock system	20
15	Interior lights Vanity mirror lights Combination meter (instrument cluster)	10
16	ECU power supply	10
17	Audio system	15
18	Power door locks	25
19	Audio system	30
20		30
21	Multiport Fuel Injection (MFI) / Sequential Multiport Fuel Injection (SFI) system, Body ECU, fuses: “EFI NO. 2”, “EFI NO. 3”	30
22	-	-
23	Sequential Multiport Fuel Injection (SFI) system	10
24		15
25	Security horn (Anti-theft alarm system)	7.5
26	Sequential Multiport Fuel Injection (SFI) system	20
27	Combination meter (instrument cluster)	10
28	Sequential Multiport Fuel Injection (SFI) system, Body ECU	10
29	Horn	10
30	Right headlight (low beam)	15
31	Left headlight (low beam)	15
32	Right headlight (high beam)	15
33	Left headlight (high beam)	15
34	Air conditioning system (blower motor)	50
35	ABS system Vehicle Stability Control (VSC) system	50
36	Radiator cooling fan	50
37	ABS system, Vehicle Stability Control (VSC) system	30
38	Rear window defogger	50
39	Power seats	30
40	Headlight washers	30
41	-	-
42	-	-
43	Pre-collision seat belts (PSB)	30
44	Fuses: “PSB”, “H-LP CLN”, “P/SEAT”, “RR DEF”, “ABS NO. 2”, “FAN MAIN”, “ABS NO. 1”, “HTR”, “RR FOG”, “RR DOOR RH”, “RR DOOR LH”, “FUEL OPN”, “FR FOG”, “OBD”, “STOP”, “TI & TE”, “A/C”, “PWR”, “DOOR NO. 2”, “S/ROOF”, “GAUGE NO. 2”, “POWER”, “P/SEAT”	120
45	-	-
46	-	-
47	-	-
48	Starting system	30
Relays
R1	VSC Relay No. 2
R2	VSC Relay No. 1
R3	Radiator cooling fan relay
R4	Stop light or rear fog light relay
R5	Starter relay (ST)
R6	Ignition relay (IG2)
R7	A/C magnetic clutch relay (A/C)
R8	Starter cut relay (ST CUT)
R9	Rear window defogger relay

Vehicle Body Component Locations

Component Location: 1. Front left power window ECU, 2. Front right power window ECU, 3. Moonroof ECU, 4. Junction Block No. 6, 5. Seat belt control ECU, 6. Height control ECU, 7. Audio amplifier, 8. Keyless entry / central locking receiver, 9. Rear sunshade relay, 10. Rear right power window ECU, 11. Tire pressure monitoring system (TPMS) antenna and receiver, 12. Rear left power window ECU