ENTRY AND START SYSTEM(for Start Function) Engine does not Start

DESCRIPTION

When the electrical key transmitter sub-assembly is in the vehicle and the engine switch is pressed, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode. In addition, when the shift lever is in P or N*1 and the brake pedal*1 or clutch pedal*2 is depressed, the engine can be started by pressing the engine switch.


Related Data List and Active Test Items
Problem Symptom Data List Item Active Test Item
Engine does not start

    Power Source Control

  • Stop Light Switch1*

  • Steering Unlock Switch

  • Power Supply Condition

  • IG Relay Monitor(Inside)

  • IG Relay Monitor(Outside)

  • Latch Circuit

  • Shift P Signal*

  • Neutral SW/ Clutch SW

  • Starter Request Signal


    Entry&Start

  • S Code Check

  • L Code Check

  • Engine Start Request

  • Immobiliser


    Starting Control

  • Ignition

  • Starter SW

  • Shift Position P or N*

 -

Tech Tips

If the brake pedal*1 or clutch pedal*2 is repeatedly depressed while the engine is stopped, the brake booster pressure is released and the force required to depress the brake pedal*1 or clutch pedal*2 to illuminate the stop lights increases.


  • *1: for Automatic Transmission

  • *2: for Manual Transmission

WIRING DIAGRAM

Refer to "SYSTEM DIAGRAM".

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.

  • 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), electrical key transmitter sub-assembly or steering lock ECU (steering lock actuator 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.

  • If the steering lock ECU (steering lock actuator assembly) is replaced, be sure to confirm that the steering is unlocked by turning the steering wheel to the left and right before starting the engine. If the steering is locked for any reason, open and close a door with the engine switch off, and then unlock the steering by pressing the engine switch. This prevents the engine from starting while the steering is locked.

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

Tech Tips


  • When the certification ECU (smart key ECU assembly) is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).

  • When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.

  • 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.


Body Electrical > Entry&Start > Utility
Tester Display
Operation History
Radio Wave Interference (RF Signal Received)
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.
Engine Start Inactive (brake system) (for Automatic Transmission)
Parameter Name Content
Operating Power Switch/brake or clutch no signal While it became the engine switch on (IG) twice repeatedly, there was not Brake signal when engine switch was pushed. (Then, warning alarm was sounded)
Engine Start Inactive (brake system) (for Manual Transmission)
Parameter Name Content
Operating Power Switch/brake or clutch no signal While it became the engine switch on (IG) twice repeatedly, there was not Clutch signal when engine switch was pushed. (Then, warning alarm was sounded)
Radio Wave Interference (RF Reception Not Available) (for Automatic Transmission)
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.
Brake or Clutch Switch/Indoor oscillator LF Signal Interference

When the brake 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.
Radio Wave Interference (RF Reception Not Available) (for Manual Transmission)
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.
Brake or Clutch Switch/Indoor oscillator LF Signal Interference

When the clutch 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.
Engine Start Inactive (steering lock system)
Parameter Name Content
Operating Power Switch/steering lock detection Engine did not start because steering is lock status when engine switch was pushed.

PROCEDURE


  1. 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.

        Tech Tips


        • 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

    B

    INSPECT TRANSMITTER BATTERY Click here

    C

    REPLACE TRANSMITTER BATTERY Click here

    A

  2. 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.


      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).

      Body Electrical > Entry&Start > Data List
      Tester Display
      Key Low Battery
      OK
      "No" is displayed in the Data List.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE TRANSMITTER BATTERY Click here

    OK

  3. CHECK FOR DTC


    1. Using the GTS, check for certification ECU (smart key ECU assembly) DTCs.


      Body Electrical > Entry&Start > Trouble Codes
      Body Electrical > Starting Control > Trouble Codes
      Body Electrical > Power Source Control > Trouble Codes
      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

    A

  4. CHECK ENGINE CRANK


    1. Get into the vehicle while carrying the electrical key transmitter.

    2. for Automatic Transmission

      Move the shift lever to P.

    3. Depress the brake pedal*1 or clutch pedal*2.


      • *1: for Automatic Transmission

      • *2: for Manual Transmission

    4. Press the engine switch and check that the engine cranks.

      Result
      Result Proceed to
      Engine cranks, but there is no initial combustion or engine is difficult to start A
      Engine does not cranks B

    A

    GO TO IMMOBILISER SYSTEM Click here

    B

  5. CHECK ENGINE SWITCH CONDITION


    1. Get into the vehicle while carrying an 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
      Off → on (ACC) → on (IG) → off A
      Power source mode does not change to on (ACC) and on (IG) B
      Power source mode changes to on (IG) but not to on (ACC) C
      Power source mode changes to on (ACC) but not to on (IG) D

    B

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG AND ACC) Click here

    C

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG) Click here

    D

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (ACC) Click here

    A

  6. 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.


        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.

        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.


        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 position switch is malfunctioning.

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

        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 (for Automatic Transmission)
      OK (for Manual Transmission)
      NG (for Automatic Transmission)
      NG (for Manual Transmission)

    OK (for Manual Transmission)

    GO TO STEP 8 Click here

    NG (for Automatic Transmission)

    INSPECT STOP LIGHT SWITCH ASSEMBLY Click here

    NG (for Manual Transmission)

    INSPECT CLUTCH START SWITCH ASSEMBLY Click here

    OK (for Automatic Transmission)

  7. READ VALUE USING GTS (NEUTRAL SW/ CLUTCH SW, SHIFT POSITION P OR N)


    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 or Starting Control / Data List.

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


      Body Electrical > Power Source Control > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Neutral SW/ Clutch SW Shift position (P and N) ON or OFF

      ON: Shift lever in P or N

      OFF: Shift lever not in P or N

      • Use this item to determine whether the park/neutral start switch assembly is malfunctioning.

      • When the engine cannot be started due to a park/neutral start switch assembly malfunction, "OFF" is displayed.

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

      Body Electrical > Starting Control > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Shift Position P or N Park/neutral position switch status ON or OFF

      ON: Shift lever in P or N

      OFF: Shift lever in any position other than P or N

      		 When malfunctioning, the engine will not crank.

      Body Electrical > Starting Control > Data List
      Tester Display
      Shift Position P or N
      OK
      The item in the Data List changes according to the shift position.
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

    OK

  8. READ VALUE USING GTS (STARTER REQUEST SIGNAL)


    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.


      Body Electrical > Power Source Control > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Starter Request Signal Engine start request signal status ON or OFF

        for Automatic Transmission

      • ON: With the shift lever in P and the brake pedal depressed, the engine switch is pressed and held

      • OFF: After approximately 1 second has elapsed, the engine switch is released


        for Manual Transmission

      • ON: With the clutch pedal depressed, the engine switch is pressed and held

      • OFF: After approximately 1 second has elapsed, the engine switch is released

      • When the engine cannot be started due to a start request signal malfunction, OFF is displayed.

      • When the engine switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the engine switch needs to be pressed and held for a certain amount of time.

      Body Electrical > Power Source Control > Data List
      Tester Display
      Starter Request Signal

      Note

      Check that the key warning light is illuminated in green on the combination meter assembly, and then press the engine switch.

      OK
      The display changes in response to the operation of the engine switch.
      Result
      Proceed to
      OK
      NG

    NG

    CHECK STEERING LOCK SYSTEM Click here

    OK

  9. READ VALUE USING GTS (STARTER SW)


    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 / Starting Control / Data List.

    5. Get into the vehicle while carrying the electrical key transmitter sub-assembly, move the shift lever to P*1, press the engine switch while depressing the brake pedal*1 or clutch pedal*2 and confirm that the Data List item changes.


      • *1: for Automatic Transmission

      • *2: for Manual Transmission


      Body Electrical > Starting Control > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Starter SW Starter operation request ON or OFF

      ON: Starter operation requested

      OFF: Starter operation not requested

      		 When malfunctioning, the engine will not crank.

      Body Electrical > Starting Control > Data List
      Tester Display
      Starter SW
      OK
      The Data List item changes.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

  10. READ VALUE USING GTS (STARTER RELAY)


    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 / Starting Control / Data List.

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


      Body Electrical > Starting Control > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Starter Relay Starter relay voltage monitor ON or OFF

      ON: ST NO. 1 relay on

      OFF: ST NO. 1 relay off

      		 OFF is displayed when the engine cannot crank.

      Body Electrical > Starting Control > Data List
      Tester Display
      Starter Relay
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT ST NO. 1 RELAY Click here

    OK

  11. 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)

  12. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. Remove the park/neutral position switch assembly.

      for AC60E: Click here

      for AC60F: Click here

    2. Inspect the park/neutral position switch assembly.

      for AC60E: Click here

      for AC60F: Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for AC60E: Click here
    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for AC60F: Click here

    OK

  13. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)


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

    2. Disconnect the C24 park/neutral position 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 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) - C24-4 (B) Always Below 1 Ω
      G70-16 (STAR) or C24-4 (B) - 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

  14. INSPECT ST NO. 1 RELAY


    1. Remove the ST NO. 1 relay.

    2. Inspect the ST NO. 1 relay.

      for 2KD-FTV: Click here

      for 1GD-FTV: Click here

      for 2GD-FTV: Click here

      for 1GR-FE: Click here

      for 2TR-FE: Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ST NO. 1 RELAY

    OK

  15. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - BODY GROUND)


    1. B0068S0C07
      *a

      Front view of wire harness connector

      (to Certification ECU (Smart Key ECU Assembly))

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

    2. Disconnect the C53*1, G85*2, C15 and G88*3 or G84*4 ECM connector.


      • *1: for 2TR-FE

      • *2: for 1GD-FTV, 2GD-FTV

      • *3: for 1GR-FE

      • *4: for 2KD-FTV

    3. w/ Engine Stop and Start Syatem

      Disconnect the G126 engine stop and start ECU connector.

    4. for Automatic Transmission

      Move the shift lever to P or N.

    5. for Manual Transmission

      Clutch pedal depressed.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G70-16 (STAR) - Body ground 20°C (68°F) 93.75 to 136.36 Ω
      G70-37 (STA) - Body ground
      Result
      Proceed to
      OK
      NG (for Automatic Transmission)
      NG (for Manual Transmission)

    NG (for Automatic Transmission)

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH) Click here

    NG (for Manual Transmission)

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

    OK

  16. INSPECT STARTER ASSEMBLY


    1. Remove the starter assembly.

      for 2KD-FTV (for 2.0 kW Type): Click here

      for 2KD-FTV (for 2.2 kW Type): Click here

      for 2KD-FTV (for BOSCH Made): Click here

      for 1GD-FTV (for 2.0 kW Type): Click here

      for 1GD-FTV (for 2.2 kW Type): Click here

      for 1GD-FTV (for BOSCH Made): Click here

      for 2GD-FTV (for 2.0 kW Type): Click here

      for 2GD-FTV (for 2.2 kW Type): Click here

      for 2GD-FTV (for 2.7 kW Type): Click here

      for 2GD-FTV (w/ Stop And Start System): Click here

      for 2GD-FTV (for BOSCH Made): Click here

      for 1GR-FE: Click here

      for 2TR-FE (for 2.0 kW Type): Click here

      for 2TR-FE (except 2.0 kW Type): Click here

      for 2TR-FE (for BOSCH Made): Click here

    2. Inspect the starter assembly.

      for 2KD-FTV (for 2.0 kW Type) Click here

      for 2KD-FTV (for 2.2 kW Type): Click here

      for 2KD-FTV (for BOSCH Made): Click here

      for 1GD-FTV (for 2.0 kW Type): Click here

      for 1GD-FTV (for 2.2 kW Type): Click here

      for 1GD-FTV (for BOSCH Made): Click here

      for 2GD-FTV (for 2.0 kW Type): Click here

      for 2GD-FTV (for 2.2 kW Type): Click here

      for 2GD-FTV (for 2.7 kW Type): Click here

      for 2GD-FTV (w/ Stop And Start System): Click here

      for 2GD-FTV (for BOSCH Made): Click here

      for 1GR-FE: Click here

      for 2TR-FE (for 2.0 kW Type): Click here

      for 2TR-FE (except 2.0 kW Type): Click here

      for 2TR-FE (for BOSCH Made): Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE STARTER ASSEMBLY for 2KD-FTV (for 2.0 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 2KD-FTV (for 2.2 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 2KD-FTV (for BOSCH Made): Click here
    REPLACE STARTER ASSEMBLY for 1GD-FTV (for 2.0 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 1GD-FTV (for 2.2 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 1GD-FTV (for BOSCH Made): Click here
    REPLACE STARTER ASSEMBLY for 2GD-FTV (for 2.0 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 2GD-FTV (for 2.2 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 2GD-FTV (for 2.7 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 2GD-FTV (w/ Stop And Start System): Click here
    REPLACE STARTER ASSEMBLY for 2GD-FTV (for BOSCH Made): Click here
    REPLACE STARTER ASSEMBLY for 1GR-FE: Click here
    REPLACE STARTER ASSEMBLY for 2TR-FE (for 2.0 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 2TR-FE (except 2.0 kW Type): Click here
    REPLACE STARTER ASSEMBLY for 2TR-FE (for BOSCH Made): Click here

    OK

  17. CHECK HARNESS AND CONNECTOR (BATTERY - STARTER AND ST NO. 1 RELAY)


    1. Remove the starter assembly from the vehicle to perform an inspection.

      for 2KD-FTV (for 2.0 kW Type): Click here

      for 2KD-FTV (for 2.2 kW Type): Click here

      for 2KD-FTV (for BOSCH Made): Click here

      for 1GD-FTV (for 2.0 kW Type): Click here

      for 1GD-FTV (for 2.2 kW Type): Click here

      for 1GD-FTV (for BOSCH Made): Click here

      for 2GD-FTV (for 2.0 kW Type): Click here

      for 2GD-FTV (for 2.2 kW Type): Click here

      for 2GD-FTV (for 2.7 kW Type): Click here

      for 2GD-FTV (w/ Stop And Start System): Click here

      for 2GD-FTV (for BOSCH Made): Click here

      for 1GR-FE: Click here

      for 2TR-FE (for 2.0 kW Type): Click here

      for 2TR-FE (except 2.0 kW Type): Click here

      for 2TR-FE (for BOSCH Made): Click here

    2. Remove the ST NO. 1 relay.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D3-1 (B) - Body ground Always 11 to 14 V
      ST NO. 1 relay terminal 5 - Body ground Always 11 to 14 V

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

      Standard Resistance
      w/o Stop and Start System
      Tester Connection Condition Specified Condition
      ST NO. 1 relay terminal 3 - C32-1 (ST) Always Below 1 Ω
      ST NO. 1 relay terminal 3 or C32-1 (ST) - Body ground Always 10 kΩ or higher
      w/ Stop and Start System
      Tester Connection Condition Specified Condition
      ST NO. 1 relay terminal 3 - C141-1 (SL1) Always Below 1 Ω
      ST NO. 1 relay terminal 3 or C141-1 (SL1) - 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

  18. 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 BATTERY Click here

  19. 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

    NG

    REPLACE STOP LIGHT SWITCH ASSEMBLY Click here

    OK

  20. 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

  21. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH)


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

    2. Disconnect the C24 park/neutral position switch 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 2KD-FTV

    4. w/ Engine Stop and Start Syatem

      Disconnect the G126 engine stop and start ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G70-16 (STAR) - C24-4 (B) Always Below 1 Ω
      G70-16 (STAR) or C24-4 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  22. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST NO. 1 RELAY)


    1. Disconnect the C24 park/neutral position switch connector.

    2. Remove the ST NO. 1 relay.

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

    4. Disconnect the C53*1, G85*2, G88*3 or G84*4 ECM connector.


      • *1: for 2TR-FE

      • *2: for 1GD-FTV, 2GD-FTV

      • *3: for 1GR-FE

      • *4: for 2KD-FTV

    5. w/ Engine Stop and Start Syatem

      Disconnect the G126 engine stop and start ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C24-5 (L) - ST NO. 1 relay terminal 2 Always Below 1 Ω
      C24-5 (L) or ST NO. 1 relay terminal 2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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

    2. Remove the ST NO. 1 relay.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G70-37 (STA) - ST NO. 1 relay terminal 2 Always Below 1 Ω
      G70-37 (STA) or ST NO. 1 relay terminal 2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  24. CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - BODY GROUND)


    1. Remove the ST NO. 1 relay.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      ST NO. 1 relay terminal 1 - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  25. 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)

  26. 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

    NG

    REPLACE CLUTCH START SWITCH ASSEMBLY Click here

    OK

  27. 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 2KD-FTV

    4. w/ Engine Stop and Start Syatem

      Disconnect the G126 engine stop and start ECU connector.

    5. 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

  28. 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 2KD-FTV

    4. w/ Engine Stop and Start Syatem

      Disconnect the G126 engine stop and start ECU connector.

    5. 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  29. CHECK HARNESS AND CONNECTOR (CLUTCH START SWITCH ASSEMBLY - ST NO. 1 RELAY)


    1. Disconnect the B2 clutch start switch assembly connector.

    2. Remove the ST NO. 1 relay.

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

    4. Disconnect the C53*1, G85*2, G88*3 or G84*4 ECM connector.


      • *1: for 2TR-FE

      • *2: for 1GD-FTV, 2GD-FTV

      • *3: for 1GR-FE

      • *4: for 2KD-FTV

    5. w/ Engine Stop and Start Syatem

      Disconnect the G126 engine stop and start ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B2-1 - ST NO. 1 relay terminal 2 Always Below 1 Ω
      B2-1 or ST NO. 1 relay terminal 2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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

    2. Remove the ST NO. 1 relay.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G70-37 (STA) - ST NO. 1 relay terminal 2 Always Below 1 Ω
      G70-37 (STA) or ST NO. 1 relay terminal 2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  31. CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - BODY GROUND)


    1. Remove the ST NO. 1 relay.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      ST NO. 1 relay terminal 1 - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  32. 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)

  33. CHECK STEERING LOCK SYSTEM


    1. Check that the steering unlocks when the engine switch is turned on (ACC).

      OK
      The steering unlocks.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEERING LOCK SYSTEM (PROBLEM SYMPTOMS TABLE) Click here

    OK

  34. CHECK SECURITY INDICATOR LIGHT (IMMOBILISER SYSTEM UNSET)


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

    2. for Automatic Transmission

      Move the shift lever to P.

    3. Press the engine switch with the brake pedal*1 or clutch pedal*2 released and check that the security indicator light changes from blinking to off at the same time that the power source mode changes to on (ACC).


      • *1: for Automatic Transmission

      • *2: for Manual Transmission

      Tech Tips

      It is determined that the immobiliser function is operating correctly if the security indicator light changes from blinking to off at the same time that the power source mode changes to on (ACC).

      OK
      Security indicator light changes from blinking to off at the same time that the power source mode changes to on (ACC).
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    GO TO IMMOBILISER SYSTEM (PROBLEM SYMPTOMS TABLE) Click here