Entry And Start System (For Start Function) Power Source Mode Does Not Change

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC OUTPUT

CHECK ENTRY AND START SYSTEM

INSPECT FUSE (AM2)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

INSPECT FUSE (AM2)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

INSPECT INTEGRATION RELAY (IG2 RELAY)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - INTEGRATION RELAY (IG2 RELAY))

INSPECT FUSE (IGN, IG2 MAIN)

CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - INTEGRATION RELAY (IG2 RELAY))

INSPECT FUSE (AM2)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

INSPECT ENGINE SWITCH

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE SWITCH AND BODY GROUND)

ENTRY AND START SYSTEM (for Start Function) - Power Source Mode does not Change


DESCRIPTION

When the certification ECU (smart key ECU assembly) has detected the key inside the cabin before the brake pedal (for A/T) or clutch pedal (for M/T) is depressed, the power source mode can be changed in the following order sequentially by pressing the engine switch: off → on (ACC) → on (IG) → off.
When one of the DTCs shown in the illustration below is detected, troubleshoot the DTC(s) by following the troubleshooting procedure relevant to the DTC(s). If the power source mode still cannot be changed normally, despite troubleshooting, one of the following may have occurred:
  1. The LIN communication line is malfunctioning.
  2. The certification ECU (smart key ECU assembly) has determined that no key is inside the cabin.
  3. The engine switch is malfunctioning.
  4. The main body ECU is malfunctioning.

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change


WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change


INSPECTION PROCEDURE

HINT:
If the vehicle is in key cancel mode, change to normal mode (Click here).
1.CHECK DTC OUTPUT

  1. Check whether a DTC is output (Click here).

    Result
    Result
    		Proceed to
    No DTC output
    		A
    DTC output
    		B


B
GO TO ENTRY AND START SYSTEM (FOR START FUNCTION) (DIAGNOSTIC TROUBLE CODE CHART) (Click here)
A


2.CHECK ENTRY AND START SYSTEM
Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Remove the battery of the electrical key transmitter (Click here).

  1. With the brake pedal (for A/T) or clutch pedal (for M/T) depressed, touch the key to the engine switch, as shown in the illustration.

  1. When operating the engine switch, check whether the engine switch changes to on (ACC) or on (IG).

HINT:
  1. When the electrical key transmitter cannot be verified even when it is in the operational area, the engine start check can be performed by removing the transmitter battery from the electrical key transmitter and holding the transmitter against the engine switch.
  2. When performing the check, if the engine switch turns on (ACC) or on (IG), there is a problem with key certification inside the cabin.
Result
Result
Proceed to
Does not change to on (ACC)
A
Does not change to on (IG)
B
Does not change to on (ACC) and on (IG)
C
Changes to on (ACC) and on (IG)
D


B
Go to step 5

C
Go to step 11

D
GO TO ENTRY AND START SYSTEM (FOR ENTRY FUNCTION) (ROOM OSCILLATOR DOES NOT RECOGNIZE KEY) (Click here)
A


3.INSPECT FUSE (AM2)

  1. Remove the AM2 fuse from the engine room relay block.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    AM2 fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE
OK


4.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Disconnect the E1, E2, 2A and 2D main body ECU connectors.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E1-6 (AM1) - Body ground
    		Always
    		11 to 14 V
    E2-1 (AM2) - Body ground
    		Always
    		11 to 14 V
    2A-1 - Body ground
    		Always
    		11 to 14 V
    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E1-22 (ACCD) - 2D-45
    		Always
    		Below 1 Ω
    2D-62 (GND2) - Body ground
    		Always
    		Below 1 Ω
    E1-22 (ACCD) or 2D-45 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU

5.INSPECT FUSE (AM2)

  1. Remove the AM2 fuse from the engine room relay block.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    AM2 fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE
OK


6.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Disconnect the E1, E2, 2A and 2D main body ECU connectors.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E1-6 (AM1) - Body ground
    		Always
    		11 to 14 V
    E2-1 (AM2) - Body ground
    		Always
    		11 to 14 V
    2A-1 - Body ground
    		Always
    		11 to 14 V
    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E1-3 (IG1D) - 2D-43
    		Always
    		Below 1 Ω
    2D-62 (GND2) - Body ground
    		Always
    		Below 1 Ω
    E1-3 (IG1D) or 2D-43 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


7.INSPECT INTEGRATION RELAY (IG2 RELAY)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Remove the integration relay from the engine room relay block.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1B-8 - 1C-1
    		Battery voltage applied to terminals 1B-6 and 1B-7
    		Below 1 Ω
    1B-8 - 1C-1
    		Battery voltage not applied to terminals 1B-6 and 1B-7
    		10 kΩ or higher


NG
REPLACE INTEGRATION NO.1 RELAY (IG2 RELAY)
OK


8.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - INTEGRATION RELAY (IG2 RELAY))

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Disconnect the E2 main body ECU connector.

  1. Disconnect the 1B integration relay connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E2-11 (IG2D) - 1B-6
    		Always
    		Below 1 Ω
    1B-7 - Body ground
    		Always
    		Below 1 Ω
    E2-11 (IG2D) or 1B-6 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


9.INSPECT FUSE (IGN, IG2 MAIN)

  1. Remove the IGN fuse and IG2 MAIN fuse from the engine room relay block.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    IGN fuse
    		Always
    		Below 1 Ω
    IG2 MAIN fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE
OK


10.CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - INTEGRATION RELAY (IG2 RELAY))

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Disconnect the E26 steering lock ECU connector.

  1. Disconnect the 1B and 1C integration relay connectors.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    1C-1 - Body ground
    		Always
    		11 to 14 V
    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E26-6 (IG2) - 1B-8
    		Always
    		Below 1 Ω
    E26-6 (IG2) or 1B-8 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU

11.INSPECT FUSE (AM2)

  1. Remove the AM2 fuse from the engine room relay block.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    AM2 fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE
OK


12.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Disconnect the E1, E2 and 2D main body ECU connectors.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E1-6 (AM1) - Body ground
    		Always
    		11 to 14 V
    E2-1 (AM2) - Body ground
    		Always
    		11 to 14 V
    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2D-62 (GND2) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


13.INSPECT ENGINE SWITCH
Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Disconnect the E18 engine switch connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    7 (SS1) - 5 (GND)
    		Pushed
    		Below 1 Ω
    2 (SS2) - 5 (GND)
    		Pushed
    		Below 1 Ω
    7 (SS1) - 5 (GND)
    		Not pushed
    		10 kΩ or higher
    2 (SS2) - 5 (GND)
    		Not pushed
    		10 kΩ or higher
    Result
    Result
    		Proceed to
    Within specified range
    		A
    Outside specified range (for 1GR-FE)
    		B
    Outside specified range (for 1UR-FE)
    		C
    Outside specified range (for 3UR-FE)
    		D
    Outside specified range (for 1VD-FTV)
    		E


B
REPLACE ENGINE SWITCH (Click here)

C
REPLACE ENGINE SWITCH (Click here)

D
REPLACE ENGINE SWITCH (Click here)

E
REPLACE ENGINE SWITCH (Click here)
A


14.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE SWITCH AND BODY GROUND)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change

  1. Disconnect the E1 main body ECU connector.

  1. Disconnect the E18 engine switch connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E1-17 (SSW1) - E18-7 (SS1)
    		Always
    		Below 1 Ω
    E1-16 (SSW2) - E18-2 (SS2)
    		Always
    		Below 1 Ω
    E18-5 (GND) - Body ground
    		Always
    		Below 1 Ω
    E1-17 (SSW1) or E18-7 (SS1) - Body ground
    		Always
    		10 kΩ or higher
    E1-16 (SSW2) or E18-2 (SS2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU