Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2001LANDCRUISER V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWSERVICE HINTS
2001 Toyota Landcruiser V8-4.7L (2UZ-FE)
Service Hints
2001 Toyota Landcruiser V8-4.7L (2UZ-FE)SECTION Service Hints
WIRELESS DOOR LOCK CONTROL
W3 WIRELESS DOOR LOCK ECU
1 - GROUND : Always continuity
8 - GROUND : Always approx. 12 volts
13 - GROUND : Approx. 12 volts with ignition SW at ON or ST position
D21, D22, D23, D24 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW FRONT LH, RH, REAR LH, RH
2 - GROUND : Approx. 12 volts with door lock motor at lock operation
3 - GROUND : Approx. 12 volts with door lock motor at unlock operation
B4 BACK DOOR LOCK MOTOR AND BACK DOOR UNLOCK DETECTION SW
2 - GROUND : Approx. 12 volts with door lock motor at lock operation
3 - GROUND : Approx. 12 volts with door lock motor at unlock operation
119 (A), 120 (B), 121(C) INSTRUMENT ECU
(A) 3 - GROUND : Continuity with front passenger door open
(A)14 - GROUND : Continuity with driver door open
(B) 1 - GROUND : Continuity with rear RH door open
(C) 7 - GROUND : Continuity with rear LH door or back door open
(C) 1 - GROUND : Always approx. 12 volts
(C) 2 - GROUND : Approx. 12 volts with ignition SW at ON or ST position
(C) 4 - GROUND : Always continuity
D14, D15, D16, D17 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH
1 - GROUND : Closed with door open
B2 BACK DOOR COURTESY SW
1 - 2 : Closed with back door open
W3 WIRELESS DOOR LOCK ECU
1 - GROUND : Always continuity
8 - GROUND : Always approx. 12 volts
13 - GROUND : Approx. 12 volts with ignition SW at ON or ST position
D21, D22, D23, D24 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW FRONT LH, RH, REAR LH, RH
2 - GROUND : Approx. 12 volts with door lock motor at lock operation
3 - GROUND : Approx. 12 volts with door lock motor at unlock operation
B4 BACK DOOR LOCK MOTOR AND BACK DOOR UNLOCK DETECTION SW
2 - GROUND : Approx. 12 volts with door lock motor at lock operation
3 - GROUND : Approx. 12 volts with door lock motor at unlock operation
119 (A), 120 (B), 121(C) INSTRUMENT ECU
(A) 3 - GROUND : Continuity with front passenger door open
(A)14 - GROUND : Continuity with driver door open
(B) 1 - GROUND : Continuity with rear RH door open
(C) 7 - GROUND : Continuity with rear LH door or back door open
(C) 1 - GROUND : Always approx. 12 volts
(C) 2 - GROUND : Approx. 12 volts with ignition SW at ON or ST position
(C) 4 - GROUND : Always continuity
D14, D15, D16, D17 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH
1 - GROUND : Closed with door open
B2 BACK DOOR COURTESY SW
1 - 2 : Closed with back door open
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.