Entry And Start System (For Entry Function) Back Door 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 OPERATION

CHECK VEHICLE EQUIPMENT

CHECK POWER BACK DOOR OPERATION

READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

READ VALUE USING INTELLIGENT TESTER (BACK DOOR HANDLE SW)

CHECK BACK DOOR OPENER SWITCH

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK DOOR OPENER SWITCH)

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


DESCRIPTION

When the back door opener switch is turned on, the certification ECU (smart key ECU assembly) uses the electrical key antenna (for outside luggage compartment) and antenna to output a request signal to the outside of the vehicle for a distance of approximately 1.0 m (3.28 ft.) from the back door. A key near the back door detects this request and transmits its ID code. The door control receiver receives the ID code and sends this ID code to the certification ECU (smart key ECU assembly). The certification ECU (smart key ECU assembly) checks if the ID code is valid. When the ID code is valid, the certification ECU (smart key ECU assembly) sends a back door open signal to the main body ECU using the CAN communication line and stops outputting request signals. The main body ECU then unlocks the back door.

WIRING DIAGRAM


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


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


INSPECTION PROCEDURE

NOTICE:
Before performing the inspection, check that there are no problems related to the "CAN Communication System" and "LIN Communication System".
1.CHECK POWER DOOR LOCK OPERATION

  1. When the door control switch of the master switch assembly is operated, check that the locked doors unlock.

    OK:
    Door locks operate normally.


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


2.CHECK VEHICLE EQUIPMENT

  1. Check if the power back door is equipped on the vehicle.

    Result
    Result
    		Proceed to
    w/ Power Back Door System
    		A
    w/o Power Back Door System
    		B


B
Go to step 4
A


3.CHECK POWER BACK DOOR OPERATION

  1. When the power back door switch is operated, check that the power back door opens.

    OK:
    Power back door system is normal.
    Result
    Result
    		Proceed to
    Power back door system is abnormal
    		A
    Power back door system is normal
    		B


B
Go to step 5
A

GO TO POWER BACK DOOR SYSTEM (Click here)

4.READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the intelligent tester on.

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

  1. Read the Data List according to the display on the intelligent tester.

    Main Body
    Tester Display
    		Measurement Item / Range
    		Normal Condition
    		Diagnostic Note
    Back Lock Pos switch
    		Back door lock position switch signal / ON or OFF
    		ON: Back door unlocked
    OFF: Back door locked
    		-
    OK:
    On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.


NG
GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Back Door LOCK/UNLOCK Functions do not Operate) (Click here)
OK


5.READ VALUE USING INTELLIGENT TESTER (BACK DOOR HANDLE SW)

  1. Using the intelligent tester, read the Data List.

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Back Door Handle SW
    		Back door opener switch / ON or OFF
    		ON: Back door open switch is pushed
    OFF: Back door open switch is not pushed
    		-
    OK:
    "ON" (switch is pushed) and "OFF" (switch is not pushed) appears on the screen.


NG
Go to step 6
OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

6.CHECK BACK DOOR OPENER SWITCH


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

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    3 (B) - 2 (L)
    		Not pushed
    		10 kΩ or higher
    3 (B) - 2 (L)
    		Open switch pushed
    		Below 1 Ω


NG
REPLACE BACK DOOR OPENER SWITCH (Click here)
OK


7.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK DOOR OPENER SWITCH)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Entry Function) Back Door Entry Unlock Function Does Not Operate

  1. Disconnect the E1 ECU connector.

  1. Disconnect the S7 switch connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E1-26 (BDSU) - S7-3 (B)
    		Always
    		Below 1 Ω
    E1-26 (BDSU) or S7-3 (B) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)