Toyota RAV4 4th generation is marked XA40 / CA40 and was produced in 2013, 2014, 2015, 2016, 2017, 2018 and 2019. During this time, the model was updated. In this publication, we will provide information on the location of electronic control units, a detailed description of the fuses and relays of the Toyota RAV 4 4th generation with block diagrams and photographs. We will highlight the cigarette lighter fuse.

Blocks in the cabin

Location

General layout of electronic control units

Left hand drive

  1. LHD: Interior Light Relay (DOME CUT)
  2. Headlight corrector control unit
  3. Fuse Box / Body Electrical Control Unit
  4. Steering wheel lock actuator
  5. Power Steering Control Unit
  6. Relay block
  7. Navigation control unit
  8. All-wheel drive control unit
  9. Parking Sensor Control Unit (Clearance Warning)
  10. Driver assistance systems control unit
  11. Network Gateway Block
  12. Windscreen wiper relay
  13. Start-stop system control unit
  14. Gearbox selector control unit
  15. Airbag control unit
  16. Distribution connector
  17. Air conditioner booster
  18. Distribution connector
  19. RHD: Double Door Lock Relay

Fuse box

Located under the instrument panel. On the diagram, this unit is designated as number 3.

1–
27.5A STOP – Brake light bulbs
310A S/ROOF – Hatch
45A AM1 – Fuses: “IG1 NO.1”, “IG1 NO.2”, “IG1 NO.3”, “ACC”
57.5A OBD – Diagnostic connector
620A D/L NO.2 – Before October 2015: Central locking, body electrical control unit
77.5A FOG RR – Rear Fog Light
810A D/L BACK – Central locking (tailgate)
915A P/OUTLET NO.1 – Socket (cigarette lighter)
1020A DOOR D – Driver’s side window regulator
1120A DOOR R/R – Rear right window lifter
1220A DOOR R/L – Rear left window regulator
1315A WIP RR – Rear Windscreen Wiper
1415A WSH – Front windshield washer, rear windshield washer
157.5A GAUGE – Reversing Lights, Auto-Dimming Interior Mirror, Blind Spot Monitor
1625A WIP FR – Windscreen Wiper
175A SFT LOCK-ACC – Gear selector lock
1815A P/OUTLET NO.2 – Socket
197.5A ACC – Sockets, audio system, electric mirrors, body electrical control unit, clock, current sensor
207.5A PANEL – VSC OFF switch, instrument cluster, BSM switch, 4WD switch, wiper rest zone heater switch, MPI/SMPFI, parking assist systems, heated seat switches, power outlets, tailgate switch, air conditioning control unit, rear window defogger switch, audio system, steering wheel controls, cup holder lighting
2110A TAIL – Side light, number plate light, fog light
2220A D/L NO.2 – Since October 2015: Central locking, body electrical equipment control unit
235A EPS-IG – Power Steering
2410A ECU-IG NO.1 – All-wheel drive (Dynamic Torque Control), steering position sensor, instrument cluster, gear selector
255A ECU-IG NO.2 – Body Electrical Control Unit, Wireless Control System, Gear Shift Lock, Intelligent Entry & Start System, Sunroof, Audio System, Tailgate Drive, Tire Pressure Monitoring System, Blind Spot Monitor, Lane Departure Alert System (LDA)
267.5A HTR-IG – Air Conditioning, Rear Window Defogger
2710A S-HTR LH – Left Seat Heating
2810A S-HTR RH – Right Seat Heating
297.5A IGN – Fuel pump, multi-port fuel injection system/sequential multi-port fuel injection system, brake lights, steering wheel lock
307.5A A/B – Airbags, front passenger classification system
315A METER – Instrument cluster
327.5A ECU-IG NO.3 – Generator, ABS/VSC, brush rest zone heating, brake light bulbs, fuses: “FAN NO.1”, “FAN NO.2”, “FAN NO.3”, “HTR”, “PTC”, “DEF”, “DEICER”

Fuse number 9, 15A, is responsible for the operation of the cigarette lighter.

Additional fuses are attached to the other side of the block.

  1. 30A P/SEAT F/L – Left seat electric drive
  2. 30A PBD – Electric Tailgate
  3. 30A P/SEAT F/R – Right seat electric drive
  4. 30A P/W-MAIN – Front window lifts, window lift control unit

Relay block

R1LHD: Anti-theft alarm system (S-HORN)
RHD: Interior lighting (DOME CUT)
R2Rear fog light (FOG RR)

Additional elements

Scheme

  1. Hatch control unit
  2. Central locking and tire pressure monitoring system receiver
    Tire pressure monitoring system control unit
  3. Central lock receiver
  4. Phone transceiver
  5. Parking assistance system control unit
  6. Right blind spot monitoring system sensor
  7. Door control unit
  8. Left blind spot monitoring system sensor
  9. Fuel pump control unit
  10. Distribution connector
  11. Audio amplifier

Blocks under the hood

Location

General layout

  1. Fuse and relay box
  2. Engine control unit
  3. Glow Plug Control Unit
  4. Generator control unit
  5. Since October 2015: Fan Control Unit
  6. Headlight Washer Relay
  7. Gearbox control unit
  8. Relay block
  9. Injector control unit
  10. Stepless Valve Lift Controller
  11. Brake actuator
  12. Glow Plug Relay
  13. Since October 2015: Fuel Heater Relay

Fuse and relay box

On the diagram it is marked with number 1 and is located on the left side of the engine compartment.

120A EFI-MAIN NO.1 – 2AR-FE: Multiport fuel injection system/sequential multiport fuel injection system, fuses: “EFI NO.1”, “EFI NO.2”
25A EFI-MAIN NO.1 – 3ZR-FE, 3ZR-FAE: Multiport fuel injection system/sequential multiport fuel injection system, fuses: “EFI NO.1”, “EFI NO.2”
30A EFI-MAIN NO.1 – Diesel: Multiport fuel injection system/sequential multiport fuel injection system, transmission control unit, fuse: “EFI NO.3”
230A TOWING-B – Trailer Socket
310A STRG LOCK – Steering wheel lock
410A ECU-B NO.2 – Air Conditioner, Instrument Cluster, Smart Entry & Start, Overhead Module
510A TURN&HAZ – Instrument cluster
620A EFI-MAIN NO.2 – 2AR-FE: Air Flow Sensor, Fuel Pump, Rear Oxygen Sensor
Diesel: Fuses: “EFI NO.1”, “EFI NO.2”
15A EFI-MAIN NO.2 – 3ZR-FE, 3ZR-FAE: Multiport fuel injection system/sequential multiport fuel injection system
7.5A EFI-MAIN NO.2 – Since October 2015: 2WW: Multiport fuel injection system/sequential multiport fuel injection system
720A ST NO.2 – Before October 2015: Starting System
30A D/L NO.1 – From October 2015: Tailgate, Instrument Cluster, Double Locking, Smart Entry & Start System, Fog Light, Windscreen Wiper & Washer, Headlights, Immobilizer, Interior Light, Power Windows, Rear Fog Light, Seat Belt Indicator, Air Bags, Starting System, Steering Lock, Anti-Theft System, Tyre Pressure Monitoring System, Wireless Remote Control
830A ST – Starting System
30A ST NO.1 – Starting System
930A AMP – Audio system
30A AMP/BBC NO.3 – Since October 2015: Audio System
1010A ETCS – Multiport fuel injection system/sequential multiport fuel injection system
30A FUEL PMP – Since October 2015: 2WW: Fuel Pump
1110A S-HORN – Until October 2015: Anti-theft system
30A BBC NO.2 – From October 2015 (without telematics): Start-stop system
7.5A MAYDAY – Since October 2015: Telematics system
1215A IG2 – Multiport fuel injection system/sequential multiport fuel injection system, fuses: “METER”, “IGN”, “A/B”
137.5A AM2 – Starting system, fuse: “IG2”
147.5A ALT-S/ICS – Current Sensor, Generator
1510A HORN – Horn
1625A EDU – Diesel: Multiport fuel injection system/sequential multiport fuel injection system
20A ST NO.2 – Since October 2015: 3ZR-FAE: Starting System
10A S-HORN – Since October 2015: Anti-theft system
1730A D/C CUT – Fuses: “DOME”, “ECU-B NO.1”, “RADIO”
185A WIPER-S – Windscreen wiper switch, current sensor, multiport fuel injection system/sequential multiport fuel injection system
1910A EFI NO.1 – 3ZR-FE: Air Flow Sensor, VSV, ACIS VSV, Rear HO2S, Multiport Fuel Injection System/Sequential Multiport Fuel Injection System
10A EFI NO.1 – 3ZR-FAE: Multiport fuel injection system/sequential multiport fuel injection system
10A EFI NO.1 – 2AR-FE: Air Flow Sensor, VSV, ACIS VSV
10A EFI NO.1 – 1AD-FTV: Air Flow Sensor, Oil Valve, EDU, ADD FUEL VLV, EGR, Start-Stop System, Glow Plugs
10A EFI NO.1 – 2AD-FTV, 2AD-FHV: EDU, ADD FUEL VLV, EGR, MAF, VNT E-VRV
7.5A EFI NO.1 – Since October 2015: 2WW: Multiport fuel injection system/sequential multiport fuel injection system
2010A EFI NO.2 – 3ZR-FAE: Air Flow Sensor, VSV, ACIS VSV, Rear Oxygen Sensor, Start-Stop System
10A EFI NO.2 – 2AR-FE: Multiport fuel injection system/sequential multiport fuel injection system
10A EFI NO.2 – 3ZR-FE, 2AD-FTV, 2AD-FHV: Air Flow Sensor
15A EFI NO.2 – Since October 2015: 2WW: Multiport fuel injection system/sequential multiport fuel injection system
2110A H-LP LH-HI – Left High Beam, High Beam Indicator
2210A H-LP RH-HI – High beam right
237.5A EFI NO.3 – Multiport fuel injection system/sequential multiport fuel injection system, transmission control unit
20A EFI NO.3 – Since October 2015: 2WW: Multiport fuel injection system/sequential multiport fuel injection system
24–
25–
2620A RADIO – Radio and audio system
2710A ECU-B NO.1 – Body electrical equipment control unit, wireless control system, steering wheel position sensor, central locking, clock, electric tailgate, tire pressure monitoring system
2810A DOME – Interior lighting, luggage compartment lighting, personal lighting
2910A H-LP LH-LO – Before October 2015: Halogen bulbs: Low beam left, headlight range control Since October 2015: Low beam left, headlight range control
15A H-LP LH-LO – Before October 2015: HID: Low beam left, headlight range control
3010A H-LP RH-LO – Before October 2015: Halogen bulbs: Low beam right Since October 2015: Low beam right
15A H-LP RH-LO – Before October 2015: HID: Low Beam Right
31–
32–
33–
34–
3550A FUEL HTR – Since October 2015: 2WW: Fuel Heater
3640A BBC – Start-stop system
3730A VLVMATIC – VALVEMATIC System
50A EFI MAIN – Since October 2015: 2WW: ABS, Cruise Control, Hill Descent Control, Hill Start Assist, Start-Stop, Panoramic View System, Dynamic Radar Cruise Control, TRC, VSC
3830A ABS NO.2 – VSC, ABS
3950A ABS NO.2 – VSC, ABS
4050A H-LP-MAIN – Fuses: “H-LP RH-LO”, “H-LP LH-LO”, “H-LP RH-HI”, “H-LP LH-HI”
4180A GLOW – Glow Plugs
4280A EPS – Electric Power Steering
43120A ALT – Before October 2015: Gasoline: Fuses: “STOP”, “S/ROOF”, “AM1”, “OBD”, “D/L NO.2”, “FOG RR”, “D/L BACK”, “P/OUTLET NO.1”, “DOOR D”, “DOOR R/R”, “DOOR R/L”, “WIP RR”, “WSH”, “GAUGE”, “WIP FR”, “SFT LOCK-ACC”, “P/OUTLET NO.2”, “ACC”, “PANEL”, “TAIL”, “D/L NO.2”, “EPS-IG”, “ECU-IG NO.1”, “ECU-IG NO.2”, “HTR-IG”, “S-HTR LH”, “S-HTR RH”, “IGN”, “A/B”, “METER”, “ECU-IG NO.3”
140A ALT – Before Oct 2015: Diesel, (3ZR-FAE since Apr 2015): Since Oct 2015: Except 2WW: Fuses: “ABS NO.1”, “ABS NO.2”, “RDI FAN”, “FAN NO.1”, “S/HTR R/L”, “DEICER”, “FOG FR”, “S/HTR R/R”, “CDS FAN”, “FAN NO.2”, “HTR”, “STV HTR”, “TOWING-ALT”, “HWD NO.1”, “HWD NO.2”, “H-LP CLN”, “DRL”, “PTC HTR NO.1”, “PTC HTR NO.2”, “PTC HTR NO.3”, “DEF”, “NOISE FILTER”, “STOP”, “S/ROOF”, “AM1”, “OBD”, “D/L NO.2”, “FOG RR”, “D/L BACK”, “P/OUTLET NO.1”, “DOOR D”, “DOOR R/R”, “DOOR R/L”, “WIP RR”, “WSH”, “GAUGE”, “WIP FR”, “SFT LOCK-ACC”, “P/OUTLET NO.2”, “ACC”, “PANEL”, “TAIL”, “D/L NO.2”, “EPS-IG”, “ECU-IG NO.1”, “ECU-IG NO.2”, “HTR-IG”, “S-HTR LH”, “S-HTR RH”, “IGN”, “A/B”, “METER”, “ECU-IG NO.3”
Relay
R1Engine Control Unit (EFI-MAIN NO.2)
R2Ignition (IG2)
R3Diesel: Engine Control Unit (EDU), Petrol: Fuel Pump (C/OPN), 2WW: Fuel Pump (FUEL PMP)
R4Before October 2015: Headlights (H-LP), From October 2015: Dimmer
R5Engine Control Unit (EFI-MAIN NO.1)
R6Before October 2015: Dimmer
From October 2015: Except 2AR-FE: Headlights (H-LP), 2AR-FE: Headlights/daytime running lights (H-LP/DRL)

Option 2

Scheme

120A RADIO – Audio system
210A ECU-B NO.1 – Body electrical control unit, wireless control system, steering wheel position sensor, clock, electric tailgate, tire pressure monitoring system, driver position memory
310A DOME – Interior lighting, personal lighting, luggage compartment lighting, personal mirror lighting
4–
520A DEICER – Heating of the brush rest zone
6–
77.5A FOG FR – Fog light, fog light indicator
830A AMP – Audio system
930A ST – Starting System
1020A EFI-MAIN NO.1 – Multiport fuel injection system/sequential multiport fuel injection system, fuses: “EFI NO.1”, “EFI NO.2”
11–
1215A IG2 – Multipoint fuel injection system/sequential multipoint fuel injection system, fuses: “METER”, “IGN”, “A/B”
1310A TURN&HAZ – Instrument cluster
147.5A AM2 – Starting system, fuse: “IG2”
1510A ECU-B NO.2 – Air Conditioner, Instrument Cluster, Front Passenger Classification System, Intelligent Entry & Start System
1610A STRG LOCK – Steering wheel lock
1730A D/C CUT – Fuses: “DOME”, “ECU-B NO.1”, “RADIO”
1810A HORN – Horn
1910A ETCS – Multiport fuel injection system/sequential multiport fuel injection system
2020A EFI-MAIN NO.2 – Air Flow Sensor, Fuel Pump, Rear Oxygen Sensor
217.5A ALT-S/ICS – Current Sensor
2210A MIR HTR – Heated Mirrors, Multiport Fuel Injection System/Sequential Multiport Fuel Injection System
2310A EFI NO.1 – Air Flow Sensor, VSV, ACIS VSV
2410A EFI NO.2 – Multiport fuel injection system/sequential multiport fuel injection system
2510A H-LP LH-HI – Left High Beam, High Beam Indicator
2610A H-LP RH-HI – High beam right
27–
2810A H-LP LH-LO – Low beam left
2910A H-LP RH-LO – Low beam right
3030A CDS FAN – Cooling system fan
3150A HTR – Air conditioning
3250A H-LP-MAIN – Daytime running lights, fuses: “H-LP RH-LO”, “H-LP LH-LO”, “H-LP RH-HI”, “H-LP LH-HI”
3330A PTC HTR NO.2 – Auxiliary Heater
34PTC HTR NO.1 – Auxiliary heater
3530A DEF – Rear window heating, fuse: “MIR HTR”
3630A ABS NO.2 – VSC
3730A RDI FAN – Cooling system fan
3850A ABS NO.1 – VSC
3980A EPS – Electric Power Steering
40120A ALT – Fuses: “ABS NO.1”, “ABS NO.2”, “PTC HTR NO.1”, “PTC HTR NO.2”, “DEICER”, “HTR”, “RDI FAN”, “CDS FAN”, “FOG FR”, “DEF”
415A WIPER-S – Windscreen wiper switch, rain sensor
4210A SPARE – Spare fuse
4320A SPARE – Spare fuse
4430A SPARE – Spare fuse
M1Daytime running light module
Relay
R1Engine Control Unit (EFI-MAIN NO.2)
R2Ignition (IG2)
R3Fuel pump (C/OPN)
R4Jumper
R5Headlights (H-LP)
R6Engine Control Unit (EFI-MAIN NO.1)
R7Rear window heating (DEF)

Relay block

On the diagram it is marked as number 8. It is located on the right side of the engine compartment.

15A DRL – Daytime Running Lights
230A TOWING-ALT – Trailer Socket
37.5A FOG FR – Fog light, fog light indicator
410A NOISE FILTER – Noise suppression filter
525A STV HTR – Auxiliary Heater
610A S/HTR R/R – From October 2015: Heated rear seat
720A DEICER – Heating of the brush rest zone
10A S/HTR R/L – From October 2015: Heated rear seat
8CDS FAN NO.2 – Since October 2015: Diesel: Cooling Fan
9–
105A RDI FAN NO.2 – Since October 2015: Diesel: Cooling Fan
11–
12–
1310A MIR HTR – Heated Mirrors, Multiport Fuel Injection System/Sequential Multiport Fuel Injection System
14–
15–
16–
1750A PTC HTR NO.1 – 600W, 840W: Auxiliary Heater
30A PTC HTR NO.1 – 330W: Auxiliary Heater
1850A PTC HTR NO.2 – 840W: Auxiliary Heater
30A PTC HTR NO.2 – 330W: Auxiliary Heater
1950A PTC HTR NO.2 – 840W: Auxiliary Heater
30A PTC HTR NO.2 – 330W: Auxiliary Heater
2030A CDS FAN – Cooling system fan
40A CDS FAN – Since October 2015: 2WW: Cooling Fan
50A FAN NO.2 – Since October 2015 : Trailer + Diesel: Cooling Fan
2130A RDI FAN – Cooling system fan
40A RDI FAN – Since October 2015: 2WW: Cooling Fan
50A FAN NO.1 – Since October 2015: Trailer + Diesel: Cooling Fan
2250A HTR – Air conditioning
2330A DEF – Rear window heating, fuse: “MIR HTR”
2450A HWD NO.2 – Heated windshield
2530A H-LP CLN – Headlight cleaners
2650A HWD NO.1 – Heated windshield
Relay
R1Cooling system fan (FAN NO.2)
R2Front fog light (FOG FR)
R3Sound signal
R4Heater (HTR)
R5Daytime Running Lights (DRL)
R6Cooling system fan (FAN NO.3)
R7Cooling system fan (FAN NO.1)
R8Rear window heating (DEF)
R9Auxiliary heater (PTC HTR NO.1)
R10Auxiliary heater (PTC HTR NO.2)
Heated windshield (HWD NO.1)
R11Auxiliary heater (PTC HTR NO.3)
Heated windshield (HWD NO.2)
R12Stop light lamps (STOP LP)
R13Starter (ST), (ST NO.1)
R14Heating of the brush resting zone (DEICER)
Heated steering wheel (STRG HTR)
Heated wiper rest zone / heated steering wheel (DEICER/STRG HTR)
A
R15From October 2015: Trailer + Diesel: Cooling fan (FAN NO.1), Rear seat heating (S/HTR R/L)
R16From October 2015: Heated rear seat (S/HTR R/R)
B
R17From October 2015: Trailer + Diesel: Cooling fan (FAN NO.2), Heated windshield washer nozzles (WSH NZL HTR)
R18Starter (ST NO.2)
C
R19330W: Auxiliary heater (PTC HTR NO.1)
600W: Auxiliary heater (PTC HTR NO.3)
R20Auxiliary heater (PTC HTR NO.2)

Option 2

Scheme

R1Front fog lights (FOG FR)
R2Air Conditioning Compressor Clutch (MG/CLT)
R3PTC heater (PTC HTR No.2)
R4—
R5Signal
R6Electric cooling fan (FAN #2).
R7PTC heater (PTC HTR No. 1)
R8Electric cooling fan (FAN #3).
R9Starter (ST)
R10Electric cooling fan (FAN #1)