Wireless Door Lock Control System (W/O Entry And Start System) No Answer-Back

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Door Lock. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

CHECK WIRELESS ANSWER-BACK OPERATION

CHECK HAZARD WARNING LIGHT OPERATION

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HAZARD WARNING LIGHT)

CHECK HARNESS AND CONNECTOR (TURN SIGNAL FLASHER - MAIN BODY ECU)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (WIRELESS DOOR LOCK BUZZER)

CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MAIN BODY ECU)

REPLACE WIRELESS DOOR LOCK BUZZER

CHECK WIRELESS DOOR LOCK BUZZER OPERATION

WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Entry and Start System) - No Answer-Back


DESCRIPTION

In some cases, the wireless door lock control functions are normal but the hazard warning light or wireless door lock buzzer answer-back function does not operate. In such cases, hazard warning light and wireless door lock buzzer signal outputs from the main body ECU may be malfunctioning.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Door Lock.Power Door Lock Control System.Wireless Door Lock Control System (W/O Entry And Start System) No Answer-Back


INSPECTION PROCEDURE

NOTICE:
Start troubleshooting after confirming that the customize status of the answer-back function has been switched on.
1.READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  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 Door Lock Pos SW
    		Back door lock position switch status / ON or OFF
    		ON: Back door unlocked
    OFF: Back door locked
    		-
    FR Door Lock Pos
    		Front RH side door lock position switch signal / UNLOCK or LOCK
    		UNLOCK: Front RH side door unlocked
    LOCK: Front RH side door locked
    		-
    FL Door Lock Pos
    		Front LH side door lock position switch signal / UNLOCK or LOCK
    		UNLOCK: Front LH side door unlocked
    LOCK: Front LH side door locked
    		-
    RR-Door Lock Pos SW
    		Rear RH side door lock position switch signal / ON or OFF
    		ON: Rear RH side door unlocked
    OFF: Rear RH side door locked
    		-
    RL-Door Lock Pos SW
    		Rear LH side door lock position switch signal / ON or OFF
    		ON: Rear LH side door unlocked
    OFF: Rear LH side door locked
    		-
    OK:
    The intelligent tester display changes as shown in the table according to door lock operation.


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


2.CHECK WIRELESS ANSWER-BACK OPERATION

  1. Check the wireless answer-back operation using the wireless door lock control function.

    Result
    Result
    		Proceed to
    Only hazard warning light answer-back does not occur
    		A
    Only wireless door lock buzzer answer-back does not occur
    		B


B
Go to step 6
A


3.CHECK HAZARD WARNING LIGHT OPERATION

  1. Check that the hazard warning lights flash continuously when the hazard warning signal switch is pressed.

    OK:
    Hazard warning lights flash continuously.


NG
GO TO LIGHTING SYSTEM (Click here)
OK


4.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HAZARD WARNING LIGHT)

  1. Operate the intelligent tester according to the steps on the display and select "Active Test" (Click here).


Main Body
Tester Display
Test Part
Control Range
Diagnostic Note
Hazard
Turn signal flasher relay
ON/OFF
-
OK:
The hazard warning lights can be turned on and off using the intelligent tester.


NG
Go to step 5
OK

REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

5.CHECK HARNESS AND CONNECTOR (TURN SIGNAL FLASHER - MAIN BODY ECU)

  1. Disconnect the E19 flasher connector.

  1. Disconnect the E3 main body ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E19-8 (HAZ) - E3-7 (HZSW)
    		Always
    		Below 1 Ω
    E19-8 (HAZ) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

6.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (WIRELESS DOOR LOCK BUZZER)

  1. Operate the intelligent tester according to the steps on the display and select "Active Test" (Click here).

    Main Body
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Wireless Buzzer
    		Wireless door lock buzzer
    		ON/OFF
    		-
OK:
The wireless door lock buzzer can be turned on and off using the intelligent tester.


NG
Go to step 7
OK

REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

7.CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MAIN BODY ECU)

  1. Disconnect the A20 buzzer connector.

  1. Disconnect the E4 main body ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A20-1 - E4-7 (BZR)
    		Always
    		Below 1 Ω
    A20-2 - Body ground
    		Always
    		Below 1 Ω
    A20-1 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


8.REPLACE WIRELESS DOOR LOCK BUZZER

  1. Temporarily replace the wireless door lock buzzer with a new or normally functioning one (Click here).


NEXT


9.CHECK WIRELESS DOOR LOCK BUZZER OPERATION

  1. Check that the wireless door lock buzzer sounds by operating the wireless door lock function.

    OK:
    Wireless door lock buzzer sounds.


NG
REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
OK

END (WIRELESS DOOR LOCK BUZZER IS DEFECTIVE)