Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - DOOR LOCK

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK POWER DOOR LOCK OPERATION

CHECK KEY REMINDER WARNING OPERATION

CHECK WIRELESS DOOR CONTROL TRANSMITTER

CHECK TRANSMITTER BATTERY

CHECK FOR ELECTRICAL NOISE

CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - MAIN BODY ECU)

CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND)

CHECK DOOR CONTROL RECEIVER (OUTPUT)

WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Entry and Start System) - Only Wireless Control Function is Inoperative

DESCRIPTION

The door control receiver receives signals from the transmitter and sends these signals to the main body ECU. The main body ECU then controls all the doors by sending lock/unlock signals to each door.


WIRING DIAGRAM

Wireless Door Lock Control System (W/O Entry And Start System) - Only Wireless Control Function Is Inoperative. DOOR LOCK. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

  • NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
When replacing the door control receiver, refer to the registration procedures ().
1.CHECK POWER DOOR LOCK OPERATION

Check the power door lock operation ().

  • OK:
  • Each door locks and unlocks normally.
NG
Go to POWER DOOR LOCK CONTROL SYSTEM ()
OK
2.CHECK KEY REMINDER WARNING OPERATION

Check the key reminder warning buzzer operation ().

  • HINT:
  • If the key reminder warning buzzer is functioning normally, it can be assumed that the unlock warning switch is also functioning normally.
  • OK:
  • Key reminder warning buzzer operates normally.
NG
Go to KEY REMINDER WARNING SYSTEM ()
OK
3.CHECK WIRELESS DOOR CONTROL TRANSMITTER

Check whether the wireless door lock control functions operate normally with another registered transmitter.

  • OK:
  • Wireless door lock control functions operate normally.
NG
Go to step 5
OK
4.CHECK TRANSMITTER BATTERY

Remove the battery from the inoperative wireless door control transmitter ().

Measure the voltage according to the value(s) in the table below.

  • Standard Voltage:
  • Tester ConnectionConditionSpecified Condition
    Battery positive (+) - Battery negative (-)Always2.5 to 3.2 V
NG
REPLACE TRANSMITTER BATTERY ()
OK
REPLACE DOOR CONTROL TRANSMITTER
5.CHECK FOR ELECTRICAL NOISE

Move the transmitter in the vicinity of the door control receiver.

  • HINT:
  • Refer to Parts Location for the location of the door control receiver ().

Press and hold either the lock or unlock transmitter switch for 1 second, and check that the doors are locked or unlocked accordingly.

  • OK:
  • Wireless door lock control functions operate normally.
  • HINT:
Check if electrical noise is the cause by moving the door control transmitter closer to the door control receiver. Moving closer will decrease the effects of electrical noise.
If the operation check can be performed normally, there is a high probability that electrical noise or a decrease in output from the door control transmitter is the cause of the malfunction. There is a high probability that electrical noise is the cause if the problem occurs only in a certain location or only during a certain time of day. Also, custom components may be causing electrical noise. If custom components are installed in the vehicle, remove them and perform the operation check again.
NG
Go to step 6
OK
FIND CAUSE OF ELECTRICAL NOISE AND REMOVE IT
6.CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - MAIN BODY ECU)

Disconnect the L47 receiver connector.

Disconnect the E2 main body ECU connector.

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • Tester ConnectionConditionSpecified Condition
    L47-2 (RDA) - E2-12 (RDA)AlwaysBelow 1 Ω
    L47-3 (PRG) - E2-10 (PRG)AlwaysBelow 1 Ω
    L47-2 (RDA) - Body groundAlways10 kΩ or higher
    L47-3 (PRG) - Body groundAlways10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
7.CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND)
Wireless Door Lock Control System (W/O Entry And Start System) - Only Wireless Control Function Is Inoperative. DOOR LOCK. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Disconnect the L47 receiver connector.

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • Tester ConnectionConditionSpecified Condition
    L47-1 (GND) - Body groundAlwaysBelow 1 Ω

Measure the voltage according to the value(s) in the table below.

  • Standard Voltage:
  • Tester ConnectionConditionSpecified Condition
    L47-5 (+B) - Body groundAlways11 to 14 V
Text in Illustration
*aFront view of wire harness connector
(to Door Control Receiver)
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
8.CHECK DOOR CONTROL RECEIVER (OUTPUT)
Wireless Door Lock Control System (W/O Entry And Start System) - Only Wireless Control Function Is Inoperative. DOOR LOCK. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Using an oscilloscope, check the waveform.

Measurement Condition
ItemContent
Tester ConnectionL47-2 (RDA) - Body ground
Tool Setting10 V/DIV., 50 μs/DIV.
ConditionNo key in ignition key cylinder, all doors closed and transmitter switch off → on
  • OK:
  • Waveform is output normally (refer to illustration).
NG
REPLACE DOOR CONTROL RECEIVER ()
OK
REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
DOOR LOCK
Land Cruiser URJ200 URJ202 GRJ200 VDJ200
WIRELESS DOOR LOCK CONTROL SYSTEM w/o Entry and Start System