Entry And Start System (For Entry Function) Rear Door Lh Entry Unlock Function Does Not Operate

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK POWER DOOR LOCK CONTROL SYSTEM

READ VALUE USING GTS (RL-DOOR LOCK POS SW)

READ VALUE USING GTS (DL-DOOR TOUCH SENSOR)

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - REAR DOOR OUTSIDE HANDLE ASSEMBLY LH)

CHECK REAR DOOR OUTSIDE HANDLE ASSEMBLY LH (INPUT TO REAR DOOR LH UNLOCK SENSOR)

ENTRY AND START SYSTEM (for Entry Function) - Rear Door LH Entry Unlock Function does not Operate


DESCRIPTION

If the entry unlock function does not operate for the rear door LH only, but the entry lock function operates, the request code is being transmitted properly from the rear door LH. In this case, there may be a problem related to the unlock sensor (connection between the certification ECU [smart key ECU assembly] and rear door outside handle assembly LH).

WIRING DIAGRAM

for LHD:

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Entry Function) Rear Door Lh Entry Unlock Function Does Not Operate

for RHD:

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Entry Function) Rear Door Lh Entry Unlock Function Does Not Operate


INSPECTION PROCEDURE

NOTICE:
  1. The entry and start system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly (Click here).
  2. When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
  3. Check that there are no electrical key transmitter sub-assemblies in the vehicle.
  4. Before replacing the certification ECU (smart key ECU assembly), refer to entry and start system (for Entry Function) (Click here).
  5. After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
1.CHECK POWER DOOR LOCK CONTROL SYSTEM

  1. When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation (Click here).

    OK:
    Door locks operate normally.


NG
GO TO POWER DOOR LOCK CONTROL SYSTEM (Click here)
OK


2.READ VALUE USING GTS (RL-DOOR LOCK POS SW)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Body Electrical / Main Body / Data List.

  1. Read the Data List according to the display on the GTS.


Main Body
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
RL-Door Lock Pos SW
Rear door LH unlock detection switch signal / ON or OFF
ON: Rear door LH unlocked
OFF: Rear door LH locked
-
OK:
The GTS display changes correctly in response to the lock/unlock operation of the rear door LH.


NG
GO TO POWER DOOR LOCK CONTROL SYSTEM (Click here)
OK


3.READ VALUE USING GTS (DL-DOOR TOUCH SENSOR)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG)

  1. Turn the GTS on.

  1. Enter the following menus: Body Electrical / Entry&Start / Data List.

  1. Read the Data List according to the display on the GTS.


Entry&Start
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Dr-Door Touch Sensor
Rear door LH touch sensor (unlock sensor)*1 / ON or OFF
ON: Rear door LH touch sensor (unlock sensor) touched
OFF: Rear door LH touch sensor (unlock sensor) not touched
  1. Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).
  2. Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.
Pr-Door Touch Sensor
Rear door LH touch sensor (unlock sensor)*2 / ON or OFF
ON: Rear door LH touch sensor (unlock sensor) touched
OFF: Rear door LH touch sensor (unlock sensor) not touched
  1. Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).
  2. Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.
  1. *1: for LHD
  2. *2: for RHD
OK:
The GTS display changes correctly in response to the operation of the rear door outside handle assembly LH.


NG
Go to step 4
OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

4.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - REAR DOOR OUTSIDE HANDLE ASSEMBLY LH)

  1. Disconnect the E129 and E130 certification ECU (smart key ECU assembly) connectors.

  1. Disconnect the z78 rear door outside handle assembly LH connector.

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

    Standard Resistance:
    for LHD:
    Tester Connection
    		Condition
    		Specified Condition
    E129-8 (CLG3) - z78-6 (ANT1)
    		Always
    		Below 1 Ω
    E129-7 (CG3B) - z78-4 (ANT2)
    		Always
    		Below 1 Ω
    E129-8 (CLG3) or z78-6 (ANT1) - Body ground
    		Always
    		10 kΩ or higher
    E129-7 (CG3B) or z78-4 (ANT2) - Body ground
    		Always
    		10 kΩ or higher
    for RHD:
    Tester Connection
    		Condition
    		Specified Condition
    E129-10 (CLG4) - z78-6 (ANT1)
    		Always
    		Below 1 Ω
    E129-9 (CG4B) - z78-4 (ANT2)
    		Always
    		Below 1 Ω
    E129-10 (CLG4) or z78-6 (ANT1) - Body ground
    		Always
    		10 kΩ or higher
    E129-9 (CG4B) or z78-4 (ANT2) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the z78 rear door outside handle assembly LH connector.

  1. Reconnect the E129 and E130 certification ECU (smart key ECU assembly) connectors.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK REAR DOOR OUTSIDE HANDLE ASSEMBLY LH (INPUT TO REAR DOOR LH UNLOCK SENSOR)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Entry Function) Rear Door Lh Entry Unlock Function Does Not Operate


Text in Illustration
*A
for LHD
*B
for RHD
*a
Component with harness connected
(Certification ECU [Smart Key ECU Assembly])
*b
Waveform 1
*c
Unlock sensor not touched
*d
Unlock sensor touched

  1. Using an oscilloscope, check the waveform.

    OK:

    for LHD
    Tester Connection
    		Switch Condition
    		Tool Setting
    		Specified Condition
    E129-8 (CLG3) - E130-11 (E)
    		Procedure:
    1. Engine switch off
    2. Electrical key transmitter sub-assembly brought outside vehicle
    3. All doors locked
    4. Electrical key transmitter sub-assembly not near the vehicle
    5. Rear door LH unlock sensor touched
    		5 V/DIV., 50 ms/DIV.
    		Pulse generation (See waveform 1)

    for RHD
    Tester Connection
    		Switch Condition
    		Tool Setting
    		Specified Condition
    E129-10 (CLG4) - E130-11 (E)
    		Procedure:
    1. Engine switch off
    2. Electrical key transmitter sub-assembly brought outside vehicle
    3. All doors locked
    4. Electrical key transmitter sub-assembly not near the vehicle
    5. Rear door LH unlock sensor touched
    		5 V/DIV., 50 ms/DIV.
    		Pulse generation (See waveform 1)


NG
REPLACE REAR DOOR OUTSIDE HANDLE ASSEMBLY LH (Click here)
OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)