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

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DTC Code DTC Name
  Power Source Mode does not Change to ON (IG and ACC)
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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.


Table 1. 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

  • Start Switch1

  • Start Switch2

  • Power Supply Condition

  • IG Relay Monitor(Inside)

  • IG Relay Monitor(Outside)

  • Latch Circuit

  • ACC Relay Monitor

 -
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WIRING DIAGRAM

Refer to "SYSTEM DIAGRAM".

Click here

Click here

CAUTION / NOTICE / HINT

Note:

  • 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 Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). 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.

  • 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.

  • Make sure that no DTCs are output. If any DTCs are output, proceed to the Diagnostic Trouble Code Chart.

    Click here

  • If the entry and start system is disabled through the customize function, enable the system before performing troubleshooting.

    Click here

  • Before replacing the certification ECU (smart key ECU assembly) or electrical key transmitter sub-assembly, refer to the entry and start system (for Entry Function) precaution.

    Click here

  • Inspect the fuses of circuits related to this system before performing the following procedure.

  • After completing repairs, confirm that the problem does not occur.

  • The indoor electrical key antenna assemblies have an antenna coil between each two CLG terminals.

  • The door control receiver is also related to interior verification.

Tip:

  • 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.

  • If the room oscillator does not recognize, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly).

  • The certification ECU (smart key ECU assembly) stores the operation history of the entry and start system and it can be read using the GTS.


  1. Body Electrical > Entry&Start > Utility
    Tester Display
    Operation History




Table 2. Radio Wave Interference
Parameter Name Content
Operating Engine Switch / Key RF Signal Interference

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).

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.
Table 3. Engine Start Inactive (radio wave interference)
Parameter Name Content
Operating Power Switch/Indoor oscillator LF Signal Interference

When the engine switch was operated, the room oscillator 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).

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.
Click here

PROCEDURE


  1. Click here

    CHECK TRANSMITTER BATTERY


    1. Check the transmitter battery level of the electrical key transmitter sub-assembly that was checked first.


      1. Press and hold the lock switch of the transmitter for 5 seconds and check the number of times that the transmitter LED illuminates.

        Tip:

        • The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is being used. 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.

          Click here

        • Even if the transmitter battery is depleted, it is still possible to start the engine by holding the electrical key transmitter sub-assembly near the engine switch, depressing the brake pedal and pressing the engine switch.

      Result
      Result Proceed to
      Transmitter LED illuminates 3 times or more when switch is pressed and held A
      Transmitter LED does not illuminate when switch is pressed and held B
      Transmitter LED illuminates once or twice but not a third time C

  2. Click here

    READ VALUE USING GTS (KEY LOW BATTERY)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. According to the display on the GTS, read the Data List.


      1. Body Electrical > Entry&Start > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Key Low Battery Transmitter battery depleted Yes or No

        Yes: Transmitter battery depleted

        No: Transmitter battery not 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).



      1. Body Electrical > Entry&Start > Data List
        Tester Display
        Key Low Battery




      OK
      "No" is displayed in the Data List.
      Result
      Proceed to
      OK
      NG

  3. Click here

    CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      1. Body Electrical > Entry&Start > Clear DTCs



      1. Body Electrical > Starting Control > Clear DTCs



      1. Body Electrical > Power Source Control > Clear DTCs


    2. Recheck for DTCs.

      Click here


      1. Body Electrical > Entry&Start > Trouble Codes



      1. Body Electrical > Starting Control > Trouble Codes



      1. Body Electrical > Power Source Control > Trouble Codes


      OK
      DTC is not output.
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      GO TO DIAGNOSTIC TROUBLE CODE CHART

  4. Click here

    CHECK ENTRY AND START SYSTEM (VEHICLE INTERIOR DETECTION)


    1. Get into the vehicle while carrying a different, previously-registered electrical key transmitter sub-assembly.

    2. for Automatic Transmission

      Move the shift lever to P.

    3. With the brake pedal*1 or clutch pedal*2 released, check that pressing the engine switch causes the power source mode to change.


      • *1: for Automatic Transmission

      • *2: for Manual Transmission

      Result
      Result Proceed to
      Power source mode does not change A
      Off → on (ACC) → on (IG) → off B

    • AClick here
    • B

      END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE)

  5. Click here

    CHECK WIRELESS AND ENTRY FUNCTION


    1. Check that the wireless door lock functions operate normally.

      Click here

    2. Check that the entry lock and unlock functions operate on each door.

      Click here

      Tip:

      If the door control receiver is defective, code verification does not begin in the cabin and the entry lock and unlock functions do not operate.

      OK
      Wireless door lock, entry door lock and entry door unlock functions operate normally.
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      GO TO ENTRY AND START SYSTEM (ALL DOOR ENTRY LOCK/UNLOCK FUNCTIONS AND WIRELESS FUNCTIONS DO NOT OPERATE)Click here

  6. Click here

    CHECK PUSH START FUNCTION


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

      Click here

    2. B0068BXC01
      *1 Engine Switch
      *2 Electrical Key Transmitter Sub-assembly

      With the brake pedal*1 or clutch pedal*2 depressed, hold the electrical key transmitter sub-assembly near the engine switch and check if the power source mode changes.


      • *1: for Automatic Transmission

      • *2: for Manual Transmission

      Tip:

      If the power source mode changes, the cabin verification is malfunctioning.

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

  7. Click here

    CHECK WAVE ENVIRONMENT


    1. Install the transmitter battery to the electrical key transmitter sub-assembly.

      Click here

    2. Bring the electrical key transmitter sub-assembly near the No. 1 indoor electrical key antenna assembly (front floor) and perform an entry and start system check.

      Click here

      Note:

      Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the No. 1 indoor electrical key antenna assembly (front floor).

    3. Bring the electrical key transmitter sub-assembly near the No. 2 indoor electrical key antenna assembly (rear floor) and perform an entry and start system check.

      Click here

      Note:

      Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the No. 2 indoor electrical key antenna assembly (rear floor).

      Tip:

      • As the effect of wave interference decreases by moving the electrical key transmitter sub-assembly close to each indoor electrical key antenna assembly, it may be possible to check whether wave interference is the cause of the problem.

      • If the problem only occurs in specific places or at specific times, wave interference may be the cause of the problem. Also, parts installed by the dealer may cause wave interference. As a result, when parts have been installed by the dealer, it may be necessary to remove those parts before inspecting the vehicle.

      • There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.

      • If a tool for checking electric waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.

      Result
      Result Proceed to
      System cannot be operated A
      System can be operated B

  8. Click here

    CHECK KEY DIAGNOSTIC MODE


    1. Check the following antennas in key diagnostic mode.

      Click here

    2. Select either channel 1 or channel 2 and perform the key diagnostic mode inspection for each channel.


      1. Body Electrical > Entry&Start > Utility
        Tester Display
        Communication Check(Key Diag Mode)




      Tip:

      If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.


      1. B00694LC01
        *A for Double Cab
        *a Inspection Point
        B0069EDC01
        *A for Smart Cab
        *a Inspection Point

        Check the No. 1 indoor electrical key antenna assembly (front floor).

        When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds.

      2. B0068R6C01
        *A for Double Cab
        *a Inspection Point
        B00691TC01
        *A for Smart Cab
        *a Inspection Point

        Check the No. 2 indoor electrical key antenna assembly (rear floor).

        When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless door lock buzzer sounds.

      Tip:

      • If the buzzer sounds, it can be determined that the vehicle interior transmitters are operating normally.

      • It is possible to check which indoor electrical key antenna assembly (front or rear) is operating by the sounding of the buzzer.

      • If the buzzer does not sound for any indoor electrical key antenna assemblies, the certification ECU (smart key ECU assembly) circuit may be malfunctioning.

      Result
      Result Proceed to
      Front floor operation check fails A
      Rear floor operation check fails B
      The wireless buzzer sounds/does not sound for all indoor electrical key antenna assemblies C

  9. Click here

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR))


    1. Disconnect the G70 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the G74 No. 1 indoor electrical key antenna assembly (front floor) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G70-31 (CLG1) - G74-1 (ANTE1) Always Below 1 Ω
      G70-30 (CG1B) - G74-3 (CLGB) Always Below 1 Ω
      G70-31 (CLG1) or G74-1 (ANTE1) - Body ground Always 10 kΩ or higher
      G70-30 (CG1B) or G74-3 (CLGB) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. Click here

    CHECK CONNECTOR CONNECTION CONDITION


    1. Disconnect the G69 and G70 certification ECU (smart key ECU assembly) connectors.

    2. Connect the G69 and G70 certification ECU (smart key ECU assembly) connectors.

    3. Press the engine switch and check that the engine starts.

      OK
      Engine starts.
      Result
      Proceed to
      OK
      NG

  11. Click here

    CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR))


    1. Connect the G70 certification ECU (smart key ECU assembly) connector.

    2. Connect the G74 No. 1 indoor electrical key antenna assembly (front floor) connector.

    3. B0068TSC20
      *a

      Component with harness connected

      (No. 1 Indoor Electrical Key Antenna Assembly (Front Floor))

      		 *b Waveform 1
      *c Door open *d After approximately 30 seconds from when the door is closed

      Using an oscilloscope, check the waveform.

      Table 4. Standard Frequency:
      Tester Connection Condition Tool Setting Specified Condition
      G74-1 (ANTE1) - G74-3 (CLGB)

      Procedure:


      1. All doors closed

      2. Engine switch off

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. Door is open

      5. Door is closed

      6. Within 30 seconds

      		 2 V/DIV., 500 ms./DIV.

      Pulse generation

      (See waveform 1)
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR)Click here

    • NG

      REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  12. Click here

    INSPECT TRANSMITTER BATTERY


    1. Inspect the transmitter battery.

      Click here

      Note:

      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.

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY

    • NG

      REPLACE TRANSMITTER BATTERYClick here

  13. Click here

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR))


    1. Disconnect the G70 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the N9 No. 2 indoor electrical key antenna assembly (rear floor) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G70-6 (CLG2) - N9-1 (ANTE2) Always Below 1 Ω
      G70-23 (CG2B) - N9-3 (CLGB) Always Below 1 Ω
      G70-6 (CLG2) or N9-1 (ANTE2) - Body ground Always 10 kΩ or higher
      G70-23 (CG2B) or N9-3 (CLGB) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  14. Click here

    CHECK CONNECTOR CONNECTION CONDITION


    1. Disconnect the G69 and G70 certification ECU (smart key ECU assembly) connectors.

    2. Connect the G69 and G70 certification ECU (smart key ECU assembly) connectors.

    3. Press the engine switch and check that the engine starts.

      OK
      Engine starts.
      Result
      Proceed to
      OK
      NG

  15. Click here

    CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR))


    1. Connect the G70 certification ECU (smart key ECU assembly) connector.

    2. Connect the N9 No. 2 indoor electrical key antenna assembly (rear floor) connector.

    3. B0068TSC21
      *a

      Component with harness connected

      (No. 2 Indoor Electrical Key Antenna Assembly (Rear Floor))

      		 *b Waveform 1
      *c Door open *d After approximately 30 seconds from when the door is closed

      Using an oscilloscope, check the waveform.

      Table 5. Standard Frequency:
      Tester Connection Condition Tool Setting Specified Condition
      N9-1 (ANTE2) - N9-3 (CLGB)

      Procedure:


      1. All doors closed

      2. Engine switch off

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. Door is open

      5. Door is closed

      6. Within 30 seconds

      		 2 V/DIV., 500 ms./DIV.

      Pulse generation

      (See waveform 1)
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR)Click here

    • NG

      REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  16. Click here

    CHECK CONNECTOR CONNECTION CONDITION


    1. Disconnect the G69 and G70 certification ECU (smart key ECU assembly) connectors.

    2. Connect the G69 and G70 certification ECU (smart key ECU assembly) connectors.

    3. Press the engine switch and check that the engine starts.

      OK
      Engine starts.
      Result
      Proceed to
      OK
      NG

    • OK

      CONNECT SECURELY

    • NG

      REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  17. Click here

    READ VALUE USING GTS (STOP LIGHT SWITCH1, NEUTRAL SW/ CLUTCH SW)


    1. for Automatic Transmission


      1. Connect the GTS to the DLC3.

      2. Turn the engine switch on (IG).

      3. Turn the GTS on.

      4. Enter the following menus: Body Electrical / Power Source Control / Data List.

      5. According to the display on the GTS, read the Data List.


        1. Body Electrical > Power Source Control > Data List
          Tester Display Measurement Item Range Normal Condition Diagnostic Note
          Stop Light Switch1 State of brake pedal ON or OFF

          ON: Brake pedal depressed

          OFF: Brake pedal released

          • Use this item to determine whether the stop light switch is malfunctioning.

          • The engine cannot be started when this item is "OFF".

          • When this item is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time.



        1. Body Electrical > Power Source Control > Data List
          Tester Display
          Stop Light Switch1




        OK
        The item in the Data List changes when the brake pedal is depressed and released.

    2. for Manual Transmission


      1. Connect the GTS to the DLC3.

      2. Turn the engine switch on (IG).

      3. Turn the GTS on.

      4. Enter the following menus: Body Electrical / Power Source Control / Data List.

      5. According to the display on the GTS, read the Data List.


        1. Body Electrical > Power Source Control > Data List
          Tester Display Measurement Item Range Normal Condition Diagnostic Note
          Neutral SW/ Clutch SW State of clutch pedal ON or OFF

          ON: Clutch pedal depressed

          OFF: Clutch pedal released

          • Use this item to help determine if the clutch start switch is malfunctioning.

          • The engine cannot be started when this item is "OFF".



        1. Body Electrical > Power Source Control > Data List
          Tester Display
          Neutral SW/ Clutch SW




        OK
        The item in the Data List changes when the clutch pedal is depressed and released.
      Result
      Proceed to
      OK
      NG (for Automatic Transmission)
      NG (for Manual Transmission)

  18. Click here

    CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Connect the G69 certification ECU (smart key ECU assembly) connector.

    2. Connect the 2E and 2J instrument panel junction block assembly connectors.

    3. B0068U8C03
      *a

      Component with harness connected

      (Certification ECU (Smart Key ECU Assembly))

      		 - -

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


      1. Body Electrical > Power Source Control > Data List
        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

        		 -



      1. Body Electrical > Power Source Control > Data List
        Tester Display
        Power Supply Condition




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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G69-20 (IG1D) - Body ground Engine switch off 1 V or less
      Engine switch on (ACC) 1 V or less
      Engine switch on (IG) 9 V or higher
      G69-21 (ACCD) - Body ground Engine switch off 1 V or less
      Engine switch on (IG) 8.5 V or higher
      Engine switch on (ACC) 8.5 V or higher
      Result
      Proceed to
      OK
      NG

  19. Click here

    INSPECT IG1 NO. 1 RELAY


    1. Remove the IG1 NO. 1 relay.

    2. B0069AME02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω
      Result
      Proceed to
      OK
      NG

  20. Click here

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - IG1 NO. 1 RELAY)


    1. Disconnect the G69 certification ECU (smart key ECU assembly) connector.

    2. Remove the IG1 NO. 1 relay.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G69-20 (IG1D) - IG1 NO. 1 relay terminal 1 Always Below 1 Ω
      IG1 NO. 1 relay terminal 2 - Body ground Always Below 1 Ω
      G69-20 (IG1D) or IG1 NO. 1 relay terminal 1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  21. Click here

    INSPECT IG2 RELAY


    1. Remove the IG2 relay.

    2. B0069AME13

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω
      Result
      Proceed to
      OK
      NG

  22. Click here

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - IG2 RELAY)


    1. Disconnect the G69 certification ECU (smart key ECU assembly) connector.

    2. Remove the IG2 relay.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G69-20 (IG1D) - IG2 relay terminal 1 Always Below 1 Ω
      IG2 relay terminal 2 - Body ground Always Below 1 Ω
      G69-20 (IG1D) or IG2 relay terminal 1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  23. Click here

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (ACC RELAY)


    1. Remove the instrument panel junction block assembly.

      for LHD:Click here

      for RHD:Click here

    2. Remove the body ECU from the instrument panel junction block assembly.

      for LHD:Click here

      for RHD:Click here

    3. B0068ZWC10
      *A for LHD *B for RHD
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

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

      Standard Resistance
      Table 6. for LHD
      Tester Connection Condition Specified Condition
      2A-1 - 2P-5 Battery voltage not applied to terminals 2E-2 and 2J-5 10 kΩ or higher
      Battery voltage applied to terminals 2E-2 and 2J-5 Below 1 Ω
      Table 7. for RHD
      Tester Connection Condition Specified Condition
      2R-1 - 2P-5 Battery voltage not applied to terminals 2E-2 and 2J-5 10 kΩ or higher
      Battery voltage applied to terminals 2E-2 and 2J-5 Below 1 Ω
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY for LHD:Click here

      REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY for RHD:Click here

  24. Click here

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the G69 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the 2E and 2J instrument panel junction block assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G69-21 (ACCD) - 2E-2 Always Below 1 Ω
      2J-5 - Body ground Always Below 1 Ω
      G69-21 (ACCD) or 2E-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      CHECK RELAY CONTACT SIDE CIRCUIT

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  25. Click here

    READ VALUE USING GTS (START SWITCH1, START SWITCH2)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Power Source Control / Data List.

    5. According to the display on the GTS, read the Data List.


      1. Body Electrical > Power Source Control > Data List
        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

        • If the engine switch is pressed for a short time, the display may not change.

        • 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

        • 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.

        • Behaves the same way as engine switch 1.




      1. Body Electrical > Power Source Control > Data List
        Tester Display
        Start Switch1
        Start Switch2





      OK
      ON (Engine switch is pressed) and OFF (Engine switch is not pressed) appear on the screen.
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    • NGClick here
  26. Click here

    INSPECT ENGINE SWITCH


    1. Remove the engine switch.

      for 1KD-FTV (for LHD):Click here

      for 1KD-FTV (for RHD):Click here

      for 2KD-FTV (for LHD):Click here

      for 2KD-FTV (for RHD):Click here

      for 1GD-FTV (for LHD):Click here

      for 1GD-FTV (for RHD):Click here

      for 2GD-FTV:Click here

      for 1GR-FE:Click here

      for 2TR-FE:Click here

    2. Inspect the engine switch.

      for 1KD-FTV (for LHD):Click here

      for 1KD-FTV (for RHD):Click here

      for 2KD-FTV (for LHD):Click here

      for 2KD-FTV (for RHD):Click here

      for 1GD-FTV (for LHD):Click here

      for 1GD-FTV (for RHD):Click here

      for 2GD-FTV:Click here

      for 1GR-FE:Click here

      for 2TR-FE:Click here

      Result
      Proceed to
      OK
      NG

  27. Click here

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


    1. Disconnect the G69 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the G81 engine switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G69-18 (SSW1) - G81-5 (SS1) Always Below 1 Ω
      G69-16 (SSW2) - G81-1 (SS2) Always Below 1 Ω
      G69-24 (AGND) - G81-6 (AGND) Always Below 1 Ω
      G69-18 (SSW1) or G81-5 (SS1) - Body ground Always 10 kΩ or higher
      G69-16 (SSW2) or G81-1 (SS2) - Body ground Always 10 kΩ or higher
      G69-24 (AGND) or G81-6 (AGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  28. Click here

    INSPECT STOP LIGHT SWITCH ASSEMBLY


    1. Remove the stop light switch assembly.

      Click here

    2. Inspect the stop light switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

  29. Click here

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


    1. Disconnect the G69 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the A35 stop light switch assembly connector.

    3. B0068O2C02
      *a

      Front view of wire harness connector

      (to Stop Light Switch Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A35-2 - Body ground Always 11 to 14 V

    4. Connect the A35 stop light switch assembly connector.

    5. B0068OTC24
      *a

      Front view of wire harness connector

      (to Certification ECU (Smart Key ECU Assembly))

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G69-11 (STP1) - Body ground Brake pedal released 1 V or less
      Brake pedal depressed 9 V or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  30. Click here

    INSPECT CLUTCH START SWITCH ASSEMBLY


    1. Remove the clutch start switch assembly.

      Click here

    2. Inspect the clutch start switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

  31. Click here

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


    1. Disconnect the G70 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the B2 clutch start switch assembly connector.

    3. Disconnect the C53*1, G85*2, C15*3 or G84*4 ECM connector.


      • *1: for 2TR-FE

      • *2: for 1GD-FTV, 2GD-FTV

      • *3: for 1GR-FE

      • *4: for 1KD-FTV, 2KD-FTV

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G70-16 (STAR) - B2-2 Always Below 1 Ω
      G70-16 (STAR) or B2-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR