Toyota Land Cruiser Prado 120 – fuse and relay

Toyota Land Cruiser Prado 120 represents the 3rd generation of the Toyota Land Cruiser Prado range and was produced in 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009 with both gasoline and diesel engines. During this time, the model has been restyled. In this material, we will show the locations of the electronic control units, a description of the fuses and relays of the Toyota Land Cruiser Prado 120 with their diagrams and photo examples. Highlight the cigarette lighter fuse.

Toyota Land Cruiser Prado 120

The arrangement of the blocks and the purpose of the elements in them may differ from the one presented. Check the purpose of the elements with your diagrams on the box cover.

Passenger compartment

Location

General layout of boxes in the cabin

LHD

Location

Assignment

  1. Air conditioning control unit (automatic air conditioning (cars without navigation))
  2. Key transponder amplifier
  3. Fuse box
  4. Electronic variable suspension control unit
  5. Stability Control Control Unit (VSC A / T)
  6. Body electrical control unit
  7. Anti-theft control unit
  8. Distribution block No. 1
  9. Distribution block No. 2
  10. Viscous Heater Amplifier
  11. Key transponder computer
  12. Distribution block No. 3
  13. Stability control control unit (VSC M / T)
  14. Air conditioning control unit (automatic air conditioning (cars with navigation)) / Air conditioning control unit (mechanical air conditioner)
  15. Engine control unit (M / T) / Engine and automatic transmission control unit (A / T)
  16. Central differential lock control unit / Rear differential lock control unit
  17. Relay box
  18. Network gateway block
  19. Navigation control unit
  20. Refrigerator amplifier
  21. Selector lever lock control unit
  22. Audio amplifier
  23. Airbag unit

RHD

Location RHD

Designation

  1. Body electrical control unit
  2. Fuse box
  3. Stability Control Control Unit (VSC)
  4. Network gateway block
  5. Airbag unit
  6. Navigation control unit
  7. Selector lever lock control unit
  8. Refrigerator amplifier
  9. Audio amplifier
  10. Relay box
  11. Central differential lock control unit / Rear differential lock control unit
  12. Electronic variable suspension control unit
  13. Engine control unit (M / T) / Engine and automatic transmission control unit (A / T)
  14. Air conditioning control unit (automatic air conditioning (cars with navigation)) / Air conditioning control unit (mechanical air conditioner)
  15. Distribution block No. 3
  16. Key transponder computer
  17. Viscous Heater Amplifier
  18. Distribution block No. 2
  19. Air conditioning control unit (automatic air conditioning (cars without navigation))
  20. Distribution block No. 1
  21. Anti-theft control unit
  22. Double door lock relay
  23. Key transponder amplifier

Fuse box

It is located at the bottom of the dashboard, behind a protective cover.

Photo in salon

Example of a diagram on the back of the protective cover.

legend

Diagram

Diagram

Protected components

110A IGN – Fuel pump control unit, multiport fuel injection system / sequential multiport fuel injection system, ABS, VSC, A-TRC
210A SRS – SRS airbag system
37,5A GAUGE – Instrument Cluster
47,5A ST2 – Multiport fuel injection system / sequential multiport fuel injection system
530A FR WIP − WSH – Windscreen wiper and washer
620A TEMS – Electronic Adjustable Suspension
720A DIFF – Rear Differential Lock, Center Differential Lock
815A RR WIP – Rear wiper
9–
1030A D P / SEAT – LHD: Power driver’s seat
30A P P / SEAT – RHD: Power passenger seat
1130A P P / SEAT – LHD: Power passenger seat
30A D P / SEAT – RHD: Power driver seat
1215A PWR OUTLET – Socket
1310A IG1 NO.2 – Air conditioner, refrigerator
1415A RR WSH – Rear window washer
1510A ECU-IG – Gear selector lock, power windows, ABS, VSC, A-TRC, air conditioning, sunroof, sockets
1610A IG1 – ABS, VSC, A-TRC, air conditioning, charging system, heated rear window, reversing lamps, direction indicators, hazard warning lights
177,5A STA – Fuel pump control unit
1820A P FR P / W – Front passenger window regulator
1920A P RR P / W – LHD: Rear right power window
20A D RR P / W – RHD: Rear right power window
2020A D RR P / W – LHD: Rear left power window
20A P RR P / W – RHD: Rear left power window
2110A PANEL – Instrument panel illumination
2210A TAIL – Side light, license plate light
237,5A ACC – Automatic transmission control unit, sockets, power mirrors, audio system
2410A CIG – Cigarette lighter
2530A POWER – Windows, sunroof

The fuses numbered 24 (CIG) and 12 (PWR OUTLET) are responsible for the cigarette lighter and sockets.

Some relays are attached to the back of the unit.

Diagram

Diagram relay

Decoding

  • R1 – Sound signal
  • R2 – Side light
  • R3 – Power relay (windows, sunroof)
  • R4 – Sockets (ACC SKT)

Relay box

Diagram

Relay 1

Appointment

  • R1 – Panel
  • R2 – Reversing lamps
  • R3 – Heated mirrors (MIR HTR)

Additional elements

Diagram

additional elements

Assignment

  1. Sunroof control unit
  2. Distribution block
  3. Rear air conditioner relay
  4. Rear air conditioner amplifier
  5. Central locking receiver

Engine compartment

Location

General arrangement of boxs under the hood

Location 2

Designation

  1. Relay box No. 1
  2. Fuse and relay box
  3. Relay box No. 2
  4. Headlight wiper relay
  5. Stability control control unit (without VSC)
  6. Relay box No. 3 (left hand drive)
  7. Relay box No. 3 (right hand drive)

Fuse and relay box

It is located on the left side next to the battery.

Photo

Example of a diagram from the box cover

legend 2

Diagram

Diagram box under the hood

Protected components

110A Spare fuse
215A Spare fuse
320A CDS FAN – Cooling fan
430A RR A / C – Rear air conditioner
510A MIR HEATER – Heated mirrors
610A STOP – Stop lights, auxiliary brake light, gear selector lock, ABS, VSC, A-TRC, height-adjustable rear suspension
7–
815A FR FOG – Front fog light
97,5A VISCUS – Viscous heater
107,5A OBD – Diagnostic connector
1110A HEAD (LO RH) – Low beam right
1210A HEAD (LO LH) – Low beam left
1310A HEAD (HI RH) – High beam right
1410A HEAD (HI LH) – High beam left
1510A EFI NO.2 – Oxygen sensor, MAF sensor
167,5A HEATER NO.2 – Conditioner
1730A DEFOG – Heated rear window
1810A AIRSUS NO.2 – Height-adjustable rear suspension
1920A FUEL HEATER – Fuel heating
2020A SEAT HEATER – Heated seats
2110A DOME – Interior Lighting, Personal Lighting, Wireless Remote Control System, Ignition Switch Lights, Door Lights
2220A RADIO NO.1 – Audio system
2310A ECU − B – ABS, VSC, A-TRC, air conditioning, refrigerator, power windows
2410A ECU − B NO.2 – Body ECU
25Short pin
267,5A ALT − S – Charging system
27–
2810A HORN – Sound signal
2915A A / F HEATER – Air fuel ratio sensor
15A F / PMP – 1KD − FTV: Fuel pump
3015A TRN − HAZ – Direction indicators, hazard warning lights
3110A ETCS – Multiport fuel injection system / sequential multiport fuel injection system
3220A Efl – Fuel pump control unit, fuel pump, multiport fuel injection system / sequential multiport fuel injection system
25A Efl – 1KD-FTV: Fuel pump control unit, fuel pump, multiport fuel injection system / sequential multiport fuel injection system
3320A D FR P / W – Driver’s window regulator
3425A DR / LCK – Central locking
35–
3630A RADIO NO.2 – Audio system
37120A ALT – without PTC: Heated rear window relay, ignition relay, fuses: “HEATER”, “CDS FAN”, “AM1”, “J / B”, “VISCUS”, “OBD”, “MIR HEATER”, “STOP” “,” FR FOG “,” AIRSUS “,” RR A / C “and” STOP “
140A ALT – with PTC: Heated rear window relay, ignition relay, fuses: “HEATER”, “CDS FAN”, “AM1”, “J / B”, “VISCUS”, “OBD”, “MIR HEATER”, “STOP” “,” FR FOG “,” PTC-1 “,” PTC-2 “,” PTC-3 “,” AIRSUS “,” RR A / C “and” STOP “
3850A HEATER – Air conditioner
3950A AIRSUS – Height Adjustable Rear Suspension
4050A AM1 – Fuses: “ACC”, “CIG”, “IG1”, “IG1 NO.2”, “ECU-IG”, “FR WIP-WSH”, “RR WIP”, “RR WSH”, “DIFF” , “TEMS” and “STA”
4140A PTC-1 – Auxiliary heater (PTC)
4250A J / B – Fuses: “PWR OUTLET”, “P FR P / W”, “P RR P / W”, “D RR P / W”, “DP / SEAT”, “PP / SEAT”, “POWER ”,“ TAIL ”and“ PANEL ”
4340A PTC-2 – Auxiliary heater (PTC)
4440A PTC-3 – Auxiliary heater (PTC)
4540A ABS MTR – ABS, VSC, A-TRC
4630A AM2 – Starting system, fuses: “IGN”, “GAUGE” and “SRS”
4730A ABS SOL – without stability control system: ABS
50A ABS SOL – ABS (Anti-lock Braking System), VSC (Vehicle Stability Control), A-TRC (Active Traction Control)
4880A GLOW – Glow plugs
Relay
R1Cooling fan (CDS FAN)
R2Auxiliary relay (ACC CUT)
R3Fog light
R4Starter (STA)
R5Ignition (IG)
R6Heater
R7A / C Compressor Clutch (MG CLT)
R8–
R9Heated rear window (DEFOG)
R10Anti-lock brake system pump (ABS MTR)
R11Active traction control (TRC MTR)
R12Anti-lock braking system (ABS SOL)
R13Downhill Assist (DAC)
R14Fuel pump (C / OPN) or EDU
R15–
R16Engine control unit (EFI)
R17Air Fuel Ratio Sensor (A / F HEATER)
R18Fuel pump
R19Headlights (HEAD)

Relay box 1

Relay box diagram

  • R1 – Starter (STA)
  • R2 – Glow plugs (GLOW)

Relay box 2

Relay box diagram

  • R1 – Air suspension (AIR SUS)
  • R2 – Dimmer (with daytime running lights)

Relay box 3

Relay box 3

  • R1 – Auxiliary heater (PTC No. 1)
  • R2 – Auxiliary heater (PTC No. 2)
  • R3 – Auxiliary heater (PTC No. 3)

 

If you have something to add – write in the comments.

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Comments 4

  • HI, I have a Toyota Land Cruiser Prado 120 . I just noticed there is no fuse in the ETCS slot in the main engine fuse box. It’s a 10 amp fuse and labeled “multiport fuel injection system/sequential multiport fuel injection system”. I’ve been driving it for almost 17 years. Should I put a fuse in? Could this have been an option not part of my engine?.

    Looking forward for your reply. Thanks.

    Reply

  • Hello,
    Dear we are in a problem In ABS& TRC PART No.(89540-60240) We need ABS Wiring diagram

    Reply

  • I can’t find the horn relay in my Toyota land cruiser Prado 2006 model petrol. Please advise.

    Reply

  • Very important application very easy you find your fuse and realy location

    Reply

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