Entry And Start System (For Start Function) Power Source Mode Does Not Change To On (Ig And Acc)

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY

READ VALUE USING GTS (KEY LOW BATTERY)

CHECK POWER SOURCE MODE

CHECK ENTRY AND START SYSTEM (for Start Function)

CHECK FOR DTC

CHECK HARNESS AND CONNECTOR (POWER SOURCE)

CHECK HARNESS AND CONNECTOR (GROUND)

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - COWL SIDE JUNCTION BLOCK LH)

CHECK COWL SIDE JUNCTION BLOCK LH (IG1 NO. 1, IG1 NO. 2, IG1 NO. 3, ACC RELAY)

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

READ VALUE USING GTS (START SWITCH1, START SWITCH2)

INSPECT TRANSMITTER BATTERY

INSPECT ENGINE SWITCH

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ENGINE SWITCH)

ENTRY AND START SYSTEM (for Start Function) - Power Source Mode does not Change to ON (IG and ACC)


DESCRIPTION

If any of the following operations are performed, the certification ECU (smart key ECU assembly) receives a signal, and changes the power source mode.
  1. With the electrical key transmitter sub-assembly in the cabin, the engine switch is pressed.
  2. When the battery of the electrical key transmitter sub-assembly is depleted, the brake pedal is depressed and the electrical key transmitter sub-assembly is held near the engine switch.
  3. When the entry cancel function has been canceled through the customized parameters, the brake pedal is depressed and the electrical key transmitter sub-assembly is held near the engine switch.

HINT:
  1. When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
  2. If the room oscillator does not recognize the key, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly).
  3. If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether or not the malfunction was caused by wave interference.

Radio Wave Interference:
Problem Symptom
Data List Item
Operating Engine Switch / Key RF Signal Interference
  1. When the engine switch was operated, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. Therefore, the output frequency was switched to the other channel (changed from channel 1 to channel 2 or from channel 2 to channel 1).
  2. If the cause of the malfunction has not been stored but any devices that can cause wave interference in the cabin have been removed and the room oscillator successfully recognizes the key, the possibility of wave interference is high.

Related Data List and Active Test Items
Problem Symptom
Data List Item
Active Test Item
Power source mode does not change to on (IG) or on (ACC)
Power Source Control
  1. Start Switch1
  2. Start Switch2
  3. Power Supply Condition
  4. IG Relay Monitor(Inside)
  5. IG Relay Monitor(Outside)
  6. Latch Circuit
  7. ACC Relay Monitor
-

WIRING DIAGRAM

Refer to "System Diagram" (Click here)

INSPECTION PROCEDURE

NOTICE:
  1. When using the GTS with the engine switch off, connect the GTS to the DLC3 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 vehicle type under manual mode and enter the following menus: Body Electrical / Entry&Start. 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.
  2. The entry and start system (for Start Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (Click here). Troubleshoot the entry and start system (for Start Function) after confirming that the communication systems are functioning properly.
  3. Make sure that no DTCs are output. If any DTCs are output, proceed to the Diagnostic Trouble Code Chart (Click here).
  4. If the entry and start system is disabled through the customize function, enable the system before performing troubleshooting (Click here).
  5. Before replacing the certification ECU (smart key ECU assembly), electrical key transmitter sub-assembly or ID code box (immobiliser code ECU), refer to the entry and start system (for Start Function) precaution (Click here).
  6. Inspect the fuses of circuits related to this system before performing the following inspection procedure.
  7. After completing repairs, confirm that the problem does not occur.
1.CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY

  1. Press a switch of the electrical key transmitter sub-assembly.

    OK:
    The electrical key transmitter sub-assembly LED illuminates.


NG
Go to step 12
OK


2.READ VALUE USING GTS (KEY LOW BATTERY)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Body Electrical / Entry&Start / Data List.

  1. Read the Data List according to the display on the GTS.

    Entry&Start
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Key Low Battery
    		Transmitter battery depleted/No or Yes
    		No: Transmitter battery not depleted
    Yes: Transmitter battery depleted
    		The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is transmitting. The certification ECU (smart key ECU assembly) displays "Yes" for the "Key Low Battery" item of the Data List when this voltage information indicates 2.2 V or less. This Data List item should be checked when the electrical key transmitter sub-assembly is at room temperature (example: at -20°C (-4°F), "Yes" may be displayed even if the transmitter battery is new).


NG
REPLACE TRANSMITTER BATTERY (Click here)
OK


3.CHECK POWER SOURCE MODE

  1. Get into the vehicle while carrying an electrical key transmitter sub-assembly.

  1. Move the shift lever to P.

  1. Press the engine switch with the brake pedal released and check that the power source mode changes.

    Result
    Result
    		Proceed to
    The power source mode changes
    		A
    The power source mode does not change
    		B


B
Go to step 4
A

END (AFFECTED BY WAVE INTERFERENCE)

4.CHECK ENTRY AND START SYSTEM (for Start Function)

  1. Remove the transmitter battery from the electrical key transmitter sub-assembly.



    Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. With the brake pedal depressed, hold the electrical key transmitter sub-assembly near the engine switch and check if the power source mode changes.

    OK:
    The power source mode changes.
    HINT:
    If the power source mode changes, the cabin verification is malfunctioning.
    Result
    Result
    		Proceed to
    The power source mode does not change
    		A
    The power source mode changes
    		B


B
Go to step 11
A


5.CHECK FOR DTC

  1. Using the GTS, check for DTCs.

    Result
    Result
    		Proceed to
    DTCs are not output
    		A
    Entry and start system (for Start Function) DTCs are output
    		B


B
GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)
A


6.CHECK HARNESS AND CONNECTOR (POWER SOURCE)

  1. Disconnect the E130 certification ECU (smart key ECU assembly) connector.



    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 To On (Ig And Acc)

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E130-10 (+B) - Body ground
    		Always
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Certification ECU (smart key ECU assembly))


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE
OK


7.CHECK HARNESS AND CONNECTOR (GROUND)

  1. Disconnect the E130 certification ECU (smart key ECU assembly) connector.



    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 To On (Ig And Acc)

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

    Standard Resistance:
    Tester Connection
    		Condition
    		 Specified Condition
    E130-11 (E) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Certification ECU (smart key ECU assembly))


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


8.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - COWL SIDE JUNCTION BLOCK LH)

  1. Disconnect the E128 and E130 certification ECU (smart key ECU assembly) connectors.

  1. Disconnect the 2I and 2J cowl side junction block LH connectors.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E130-9 (ACCD) - 2J-18
    		Always
    		Below 1 Ω
    E128-3 (IG1D) - 2I-18
    2J-1 - Body ground
    E130-9 (ACCD) or 2J-18 - Body ground
    		10 kΩ or higher
    E128-3 (IG1D) or 2I-18 - Body ground


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


9.CHECK COWL SIDE JUNCTION BLOCK LH (IG1 NO. 1, IG1 NO. 2, IG1 NO. 3, ACC RELAY)

  1. Remove the cowl side junction block LH.

    1. for LHD: Click here.
    2. for RHD: Click here.


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


    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 To On (Ig And Acc)


    Text in Illustration
    *a
    		Component with harness connected
    (Cowl Side Junction Block LH)
    		-
    		-

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    2G-1 - 2I-29
    		Battery voltage applied to terminals 2I-18 and 2J-1
    		Below 1 Ω
    Battery voltage not applied to terminals 2I-18 and 2J-1
    		10 kΩ or higher
    2G-1 - 2I-33
    		Battery voltage applied to terminals 2I-18 and 2J-1
    		Below 1 Ω
    Battery voltage not applied to terminals 2I-18 and 2J-1
    		10 kΩ or higher
    2G-1 - 2I-11
    		Battery voltage applied to terminals 2I-18 and 2J-1
    		Below 1 Ω
    Battery voltage not applied to terminals 2I-18 and 2J-1
    		10 kΩ or higher
    2G-1 - 2I-51
    		Battery voltage applied to terminals 2J-18 and 2J-1
    		Below 1 Ω
    Battery voltage not applied to terminals 2J-18 and 2J-1
    		10 kΩ or higher
Result
Result
Proceed to
OK
A
NG
for LHD
B
for RHD
C


B
REPLACE COWL SIDE JUNCTION BLOCK LH (Click here)

C
REPLACE COWL SIDE JUNCTION BLOCK LH (Click here)
A


10.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  1. Install the cowl side junction block LH.

    1. for LHD: Click here.
    2. for RHD: Click here.

  1. Connect the E128 and E130 certification ECU (smart key ECU assembly) connectors.



  1. Measure the voltage while checking the Data List on the GTS.


    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 To On (Ig And Acc)


    Text in Illustration
    *a
    		Component with harness connected
    (Certification ECU (Smart Key ECU Assembly))
    		-
    		-

    Power Source Control
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Power Supply Condition
    		Power supply state/ST ON, All OFF, IG ON or ACC ON
    		All OFF: Engine switch off (ACC and IG)
    ACC ON: Engine switch on (ACC)
    IG ON: Engine switch on (IG)
    ST ON: Sending engine start request signal
    		-

    Standard Voltage:

    Tester Connection
    		Condition
    		Specified Condition
    E128-3 (IG1D) - Body ground
    		Engine switch off
    		1 V or less
    Engine switch on (ACC)
    Engine switch on (IG)
    		9 V or higher
    E130-9 (ACCD) - Body ground
    		Engine switch off
    		1 V or less
    Engine switch on (IG)
    		8.5 V or higher
    Engine switch on (ACC)


NG
Go to step 11
OK

USE SIMULATION METHOD TO CHECK (Click here)

11.READ VALUE USING GTS (START SWITCH1, START SWITCH2)

  1. Read the Data List according to the display on the GTS.

    Power Source Control
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Start Switch1
    		Engine switch 1 status/ON or OFF
    		ON: Engine switch pressed
    OFF: Engine switch not pressed
    1. If the engine switch is pressed for a short time, the display may not change.
    2. Use this item to determine whether the engine switch input signal is malfunctioning.
    Start Switch2
    		Engine switch 2 status/ON or OFF
    		ON: Engine switch pressed
    OFF: Engine switch not pressed
    1. Backup for engine switch 1. However, when the engine switch is pressed and held, the control functions only when both engine switch 1 and 2 are normal.
    2. Behaves the same way as engine switch 1.
    OK:
    The GTS display changes correctly in response to the engine switch operation.


NG
Go to step 13
OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

12.INSPECT TRANSMITTER BATTERY

  1. Inspect the transmitter battery.

    NOTICE:
    Do not wrap the lead wire around a terminal, wedge it between terminals, or solder it. The terminal may be deformed or damaged, and the transmitter battery will not be able to be installed correctly.


NG
REPLACE TRANSMITTER BATTERY (Click here)
OK

REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY

13.INSPECT ENGINE SWITCH

  1. Remove the engine switch).

    1. for 1UR-FE: Click here.
    2. for 1GR-FE: Click here.
    3. for 3UR-FE: Click here.
    4. for 1VD-FTV: Click here.

  1. Inspect the engine switch.

    1. for 1UR-FE: Click here.
    2. for 1GR-FE: Click here.
    3. for 3UR-FE: Click here.
    4. for 1VD-FTV: Click here.
      Result
      Result
      		Proceed to
      OK
      		A
      NG
      		for 1UR-FE
      		B
      for 1GR-FE
      		C
      for 3UR-FE
      		D
      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 (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ENGINE SWITCH)

  1. Disconnect the E130 connector from the certification ECU (smart key ECU assembly).

  1. Disconnect the E123 connector from the engine switch.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E130-16 (SSW1) - E123-5 (SS1)
    		Always
    		Below 1 Ω
    E130-18 (SSW2) - E123-1 (SS2)
    E130-16 (SSW1) or E123-5 (SS1) - Body ground
    		10 kΩ or higher
    E130-18 (SSW2) or E123-1 (SS2) - Body ground


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)