Entry And Start System Entry Unlock Function Does Not Operate On Luggage Compartment Door When Key Is Outside Luggage Compartment

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Door Lock. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK LUGGAGE DOOR OPENING SWITCH ASSEMBLY

CHECK MANUAL LUGGAGE COMPARTMENT DOOR OPENER OPERATION

CHECK WIRELESS LUGGAGE COMPARTMENT DOOR OPENER OPERATION

CHECK OPERATION OF KEY

PERFORM ACTIVE TEST (LUGGAGE ELECTRICAL KEY ANTENNA (OUTER))

READ DATA LIST (LUGGAGE COMPARTMENT DOOR LOCK SWITCH)

CHECK OPERATION OF CERTIFICATION ECU ASSEMBLY

CHECK WIRE HARNESS (CERTIFICATION ECU ASSEMBLY - LUGGAGE ELECTRICAL KEY ANTENNA (OUTER))

CHECK INDOOR ELECTRICAL KEY ANTENNA

ENTRY AND START SYSTEM - Entry Unlock Function does not Operate on Luggage Compartment Door when Key is Outside Luggage Compartment


DESCRIPTION

When the power luggage door open switch is turned ON, the certification ECU uses the luggage electrical key antenna (outer) and antenna to output a request signal to the outside of the vehicle for a distance of approximately 1.0 m (3.3 ft.) from the luggage compartment door. A key near the luggage compartment door detects this request and transmits its ID code. The entry door control receiver receives the ID code and sends this ID code to the certification ECU. The certification ECU checks if the ID code is valid. When the ID code is valid, the certification ECU sends a luggage compartment door open signal to the cowl side junction block LH (cowl side junction block ECU LH) using the multiplex communication line and stops outputting request signals. The luggage room junction block then unlocks the luggage compartment door.

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Door Lock.Power Door Lock Control System.Entry And Start System Entry Unlock Function Does Not Operate On Luggage Compartment Door When Key Is Outside Luggage Compartment


INSPECTION PROCEDURE

1.CHECK LUGGAGE DOOR OPENING SWITCH ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Turn the luggage door opening switch OFF and check that the entry luggage compartment door opener function operates normally.

    OK:
    Entry luggage compartment door opener function operates normally.


OK
END
NG


2.CHECK MANUAL LUGGAGE COMPARTMENT DOOR OPENER OPERATION

  1. Check that the manual luggage compartment door opener function operates normally.

    OK:
    Manual luggage compartment door opener function operates normally.


NG
GO TO LUGGAGE COMPARTMENT DOOR OPENER SYSTEM
OK


3.CHECK WIRELESS LUGGAGE COMPARTMENT DOOR OPENER OPERATION

  1. Check that the wireless luggage compartment door opener function operates normally.

    OK:
    Wireless luggage compartment door opener function operates normally.


NG
GO TO WIRELESS DOOR LOCK CONTROL FUNCTION
OK


4.CHECK OPERATION OF KEY

  1. After replacing the key with a normally functioning one, check that the wireless luggage compartment door opener function operates normally.

    OK:
    Wireless luggage compartment door opener function operates normally.


OK
END (KEY IS DEFECTIVE)
NG


5.PERFORM ACTIVE TEST (LUGGAGE ELECTRICAL KEY ANTENNA (OUTER))

  1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the antenna (outer) operates.

    Certification ECU:
    Item
    		Test Details
    		Diagnostic Note
    Bdoor Transmitter
    		Luggage compartment door outer antenna ON / OFF
    		-
    OK:
    When key is brought close to luggage compartment door, antenna (outer) is turned OFF and indicator on key illuminates.


NG
Go to step 8
OK


6.READ DATA LIST (LUGGAGE COMPARTMENT DOOR LOCK SWITCH)

  1. Check the Data List for proper functioning of the door lock switch.

    Certification ECU:
    Item
    		Measurement Item / Range (Display)
    		Normal Condition
    		Diagnostic Note
    Trunk Key Unlk
    		Luggage compartment door lock / unlock switch / ON or OFF
    		ON: Luggage compartment door lock switch is pushed
    OFF: Luggage compartment door lock switch is not pushed
    		-
    OK:
    ON (luggage compartment door lock is pushed) appears on the screen.


NG
REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY
OK


7.CHECK OPERATION OF CERTIFICATION ECU ASSEMBLY

  1. After replacing the certification ECU assembly with a normal one, check that the entry luggage compartment door lock function operates normally.

    OK:
    Entry luggage compartment door lock function operates normally.


NG
REPLACE COWL SIDE JUNCTION BLOCK LH ASSEMBLY (COWL SIDE JUNCTION BLOCK ECU LH)
OK

END (CERTIFICATION ECU ASSEMBLY IS DEFECTIVE)

8.CHECK WIRE HARNESS (CERTIFICATION ECU ASSEMBLY - LUGGAGE ELECTRICAL KEY ANTENNA (OUTER))
Lexus Gs430, Gs300. Uzs190 Grs190.Door Lock.Power Door Lock Control System.Entry And Start System Entry Unlock Function Does Not Operate On Luggage Compartment Door When Key Is Outside Luggage Compartment

  1. Disconnect the V28 ECU connector.

  1. Disconnect the V32 antenna connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V28-31 (CLG8) - V32-1 (CLG5)
    		Below 1 Ω
    V28-32 (CG8B) - V32-2 (CLGB)
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


9.CHECK INDOOR ELECTRICAL KEY ANTENNA

  1. Carry the key into the vehicle.

  1. Replace the indoor electrical key antenna with a new one.

  1. Depress the brake pedal and check that the engine switch indicator illuminates in green.

    OK:
    Engine switch indicator illuminates in green.


OK
END (INDOOR ELECTRICAL KEY ANTENNA IS DEFECTIVE)
NG

REPLACE CERTIFICATION ECU ASSEMBLY