Most electrical circuits in the vehicle are protected by fuses. Powerful current consumers are connected via relays. Fuses and relays are installed in mounting blocks located in the passenger compartment and in the engine compartment.
The information is suitable for Toyota RAV4 (XA40) 4 generation models 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 model year.
In the engine compartment
Component arrangement: 1. Fuse box; 2. Engine control unit; 3. Glow plug control unit; 4. Generator control unit; 5. From October 2015: Fan control unit; 6. Relay for headlight cleaners; 7. Transmission control unit; 8. Relay box; 9. Injector control unit; 10. Controller for stepless valve lift; 11. Brake actuator; 12. Glow plug relay; 13.October 2015: Fuel heater relay
Diesel: Multiport fuel injection system / sequential multiport fuel injection system, transmission control unit, fuse: "EFI NO.3"
30
2
Trailer connector
30
3
Steering lock
10
4
Air Conditioning, Instrument Cluster, Smart Entry and Start System, Roof Module
10
5
Instrument cluster
10
6
2AR-FE: Air flow sensor, fuel pump, rear oxygen sensor
Diesel: fuses: "EFI NO.1", "EFI NO.2"
20
3ZR-FE, 3ZR-FAE: Multiport fuel injection system / sequential multiport fuel injection system
15
From October 2015: 2WW: Multiport fuel injection system / sequential multiport fuel injection system
7.5
7
Before Oct 2015: Launch System
20
From Oct 2015: Trunk door, instrument cluster, double locking, smart entry and start system, fog light, wiper and washer, headlamps, immobilizer, interior lighting, power windows, rear fog light, seat belt indicator, airbags, starting system, blocking steering wheel, anti-theft system, tire pressure monitoring system, wireless control system
30
8
Launch system
30
9
Audio system
30
10
Multiport fuel injection system / sequential multiport fuel injection system
10
From October 2015: 2WW: fuel pump
30
11
Before October 2015: Anti-theft system
10
From October 2015 (without telematics system): Start-stop system
30
From October 2015 : Telematics system
7.5
12
Multiport fuel injection system / sequential multiport fuel injection system, "METER", "IGN", "A / B" fuses
15
13
Starting system, fuse: "IG2"
7.5
14
Amp sensor, generator
7.5
15
Horn
10
16
Diesel: Multiport fuel injection system / sequential multiport fuel injection system
25
From Oct 2015: 3ZR-FAE: Launch System
20
From October 2015: Anti-theft system
10
17
Fuses: "DOME", "ECU-B NO.1", "RADIO"
30
18
Wiper switch, current sensor, multiport fuel injection system / sequential multiport fuel injection system
5
19
3ZR-FE: Air flow sensor, VSV, ACIS VSV, rear oxygen sensor, multiport fuel injection system / sequential multiport fuel injection system
3ZR-FAE: Multiport fuel injection system / sequential multiport fuel injection system
From October 2015: 2WW: Multiport fuel injection system / sequential multiport fuel injection system
7.5
20
3ZR-FAE: Air flow sensor, VSV, ACIS VSV, rear oxygen sensor, start-stop system
2AR-FE: Multiport fuel injection system / sequential multiport fuel injection system
3ZR-FE, 2AD-FTV, 2AD-FHV: Air flow sensor
10
From October 2015: 2WW: Multiport fuel injection system / sequential multiport fuel injection system
15
21
High beam left, high beam indicator
10
22
High beam right
10
23
Multiport fuel injection system / sequential multiport fuel injection system, transmission control unit
7.5
From October 2015: 2WW: Multiport fuel injection system / sequential multiport fuel injection system
20
24
Empty
-
25
-
26
Audio system
20
27
Body ECU, Wireless Control System, Steering Position Sensor, Central Locking, Clock, Power Tailgate, Tire Pressure Monitoring System
10
28
Interior lamps, luggage compartment lamps, personal lamps
10
29
Before Oct 2015: Halogen bulbs: Low beam left, headlight range control
From October 2015: Low beam left, headlight range control
10
Before Oct 2015: HID: Left low beam, headlamps range control unit
15
30
Before October 2015: Halogen bulbs: Low beam right From October 2015: Low beam right
10
Before Oct 2015: HID: Low Beam - Right Side
15
31
Empty
-
32
Empty
-
33
Empty
-
34
Empty
-
35
From October 2015: 2WW: Fuel heating
50
36
Start-stop system
40
37
VALVEMATIC system
30
From October 2015: 2WW: ABS, cruise control, hill descent assist, hill start assist, start-stop system, panoramic view system, dynamic cruise control radar, TRC, VSC
Before October 2015: Petrol: "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 "
120
Before October 2015: Diesel, (3ZR-FAE from April 2015): ↓
From October 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 "
From October 2015: Trailer + Diesel: Cooling fan (FAN NO.1), Heated rear seat (S / HTR R / L)
R16
From October 2015: Heated rear seat
B
R17
From October 2015: Trailer + Diesel: Cooling fan (FAN NO.2), Heated glass washer nozzles (WSH NZL HTR)
R18
Starter
C
R19
330W: Auxiliary heater
600W: Auxiliary heater
R20
Auxiliary heater
In the passenger compartment
LHD
RHD
Location of components: 1. Left hand drive: Interior lighting relay (DOME CUT); 2. Control unit for headlight range control; 3 . Fuse Box / Body ECU; 4. Steering wheel lock actuator; 5. Power steering control unit; 6. Relay box; 7. Navigation control unit; 8. Four-wheel drive control unit; 9. Parktronic control unit (Clearance Warning); 10. Control unit for driver assistance systems; 11. Block of a network gateway; 12. Wiper relay; 13. Control unit for start-stop system; 14. The control unit of the gear selector; 15. Airbag control unit; 16. Distribution connector; 17. Air conditioner amplifier; 18. Distribution connector; 19.Right Drive: Double Door Lock Relay
Location of components: 1. Sunroof control unit; 2. Receiver for central locking and tire pressure monitoring system; 3. Control unit for tire pressure monitoring system; 4. Receiver for central locking; 5. Phone transceiver; 6. Parking aid control unit; 7. Right sensor of the blind spot monitoring system; 8. Door control unit; 9. Left sensor of the blind spot monitoring system; 10. Fuel pump control unit; 11. Distribution connector; 12. Audio amplifier
Excellent article and diagrams covering 2016 Rav4. Able to check and change fuses instead of BCU.Thank you