Engine Immobiliser System (W/O Entry And Start System) Security Indicator Light Does Not Blink


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING GTS (SECURITY INDICATOR)

CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - SECURITY INDICATOR LIGHT ASSEMBLY AND BODY GROUND)

CHECK TRANSPONDER KEY ECU ASSEMBLY (TERMINAL IND)

ENGINE IMMOBILISER SYSTEM (w/o Entry and Start System) - Security Indicator Light Does not Blink


DESCRIPTION

The transponder key ECU assembly blinks the security indicator light when the immobiliser is set.

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/O Entry And Start System) Security Indicator Light Does Not Blink


INSPECTION PROCEDURE

NOTICE:
  1. If the transponder key ECU assembly is replaced, refer to the Service Bulletin.
  2. When using the GTS with the vehicle ignition switch off, connect the GTS to the vehicle 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 the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Immobiliser. 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.
1.PERFORM ACTIVE TEST USING GTS (SECURITY INDICATOR)

  1. Connect the GTS to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the GTS on.

  1. Enter the following menus: Body Electrical / Immobiliser / Active Test.

  1. Perform the Active Test according to the display on the GTS.

    Immobiliser
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Security Indicator
    		Security indicator light
    		ON/OFF
    		-
    OK:
    Security indicator light can be turned on and off using the GTS.


NG
Go to step 2
OK

REPLACE TRANSPONDER KEY ECU ASSEMBLY

2.CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - SECURITY INDICATOR LIGHT ASSEMBLY AND BODY GROUND)

  1. Disconnect the G74 transponder key ECU assembly connector.

  1. Disconnect the H23 security indicator light assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G74-8 (IND) - H23-2 (LP)
    		Always
    		Below 1 Ω
    H23-5 (E) - Body ground
    		Always
    		Below 1 Ω
    G74-8 (IND) - Body ground
    		Always
    		10 kΩ or higher
    H23-2 (LP) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK TRANSPONDER KEY ECU ASSEMBLY (TERMINAL IND)

  1. Connect the G74 transponder key ECU assembly connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    H23-2 (LP) - Body ground
    		Key not in ignition key cylinder
    		Pulse generation
    Key in ignition key cylinder
    		Below 1 V


NG
REPLACE TRANSPONDER KEY ECU ASSEMBLY
OK

REPLACE SECURITY INDICATOR LIGHT ASSEMBLY (LandCruiser RM00000478I00XX.html)