STOP AND START SYSTEM Stop and Start System does not Operate (Battery Condition)

DESCRIPTION

When the stop and start system does not operate, check whether the operation is prohibited because the battery conditions are not met.

Tech Tips

Data List items
Hood Courtesy Switch Battery Current Battery Temperature (Start) Battery Temperature
Idling Stop Rate Total Idling Stop Rate Integrated Current Status of Battery Charge Control
Minimum Voltage (Cranking) Minimum Voltage (After Cranking) State of BBC Stop&Start Operating Permission (Power Management)
Stop&Start Operating Permission (Start Minimum Voltage 2) Stop&Start Operating Permission (Start Minimum Voltage 1) Stop&Start Operating Permission (Integrated Current) Stop&Start Operating Prohibition (Jump Start)
Battery Type Ambient Temperature - -

Note

If the Data List item Stop&Start Operating Permission (Power Management) is "NG" even after correcting a certain problem using the diagnostic troubleshooting procedures, the problem may be due to the battery charge amount being temporarily low or the battery may be deteriorated. However, there may be multiple overlapping conditions which are causing system operation to be prohibited, so make sure to always confirm all the diagnostic troubleshooting procedures.

PROCEDURE


  1. CHECK MULTI-INFORMATION DISPLAY


    1. Check whether the multi-information display displayed that the specified battery is not equipped.

      Tech Tips

      The multi-information display is displayed when the voltage decreases below the minimum voltage necessary for starting the non-specified battery when stop and start control is operated.

      Result
      Result Proceed to
      No display A
      Displayed in past B

    B

    GO TO STEP 14 Click here

    A

  2. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Trouble Codes.

    5. Read the DTCs.


      Powertrain > Stop and Start > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  3. READ VALUE USING GTS (STOP&START OPERATING PERMISSION (POWER MANAGEMENT))

    Tech Tips

    Check whether stop and start control was prohibited based on the battery conditions or other conditions.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Stop&Start Operating Permission (Power Management).


      Powertrain > Stop and Start > Data List
      Tester Display
      Stop&Start Operating Permission (Power Management)

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Stop&Start Operating Permission (Power Management) Permission of stop and start control based on the battery conditions NG / OK OK: Stop and start control is permitted due to battery condition, or Active Test (forced permission) is performed -
      Result
      Result Proceed to
      NG is displayed A
      OK is displayed B

    B

    END (CHECK OTHER STOP AND START CONTROL PERMISSION/PROHIBITION CONDITIONS) Click here

    A

  4. READ VALUE USING GTS (BATTERY TYPE)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Type.


      Powertrain > Stop and Start > Data List
      Tester Display
      Battery Type

    5. Check the "Battery Type" Data List Item.


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Battery Type Set battery type Specified / Other

      Specified: Specified battery

      Other: Non-specified battery

      		 -

    6. Check whether the battery is specified or not specified.

      Result
      GTS Display Proceed to
      Specified A
      Other B

    B

    CHECK BATTERY SETTINGS AND EQUIPPED BATTERY Click here

    A

  5. READ VALUE USING GTS (STOP&START OPERATING PROHIBITION (JUMP START))

    Tech Tips

    Check whether stop and start control was prohibited based on the jump start battery condition.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Stop&Start Operating Prohibition (Jump Start).


      Powertrain > Stop and Start > Data List
      Tester Display
      Stop&Start Operating Prohibition (Jump Start)

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Stop&Start Operating Prohibition (Jump Start) Prohibition of stop and start control based on the jump start conditions Permit / Prohibit Prohibit: Engine started with the engine hood open and the engine switch turned on (START) When Prohibit is displayed, stop and start control will be prohibited until the engine switch is turned off.
      Result
      Result Proceed to
      Permit is displayed A
      Prohibit is displayed B

      Tech Tips


      • A jump start is determined if the engine is started with the engine hood open.

      • After turning the engine switch off and waiting approximately 30 seconds, a jump start is determined to have not occurred if the engine is started with the engine hood closed.


    B

    READ VALUE USING GTS (HOOD COURTESY SWITCH) Click here

    A

  6. READ VALUE USING GTS (STATE OF BBC)

    Tech Tips

    Check the operation of the backup boost converter.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / State of BBC.


      Powertrain > Stop and Start > Data List
      Tester Display
      State of BBC

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      State of BBC Backup boost converter status Cycle Err / Overvoltage / Overload / Normal / Low Vol / Duty Err / Stop&Start Sensor Electric Supply Low / Stop&Start CPU Malfunction / BBC Overcurrent / Stop&Start Starter Overcurrent / Stop&Start Reduced Voltage Reset Normal: Backup boost converter operating normally

      • Duty Err:


        • Abnormal duty ratio is detected.

      • Cycle Err:


        • Abnormal output voltage cycle is detected.

      • Low Vol:


        • A decrease in the voltage of the control IC power source within the backup boost converter is detected when engine switch turned on (IG).

      • Overload:


        • Overcurrent is detected.

      • Overvoltage:


        • When the engine switch is on (IG):


          1. Overvoltage is detected at the control IC power source in the backup boost converter

          2. Overheating is detected at the control IC power source in the backup boost converter

        • When boosting:


          1. Malfunction is detected in the feedback circuit in the backup boost converter

          2. Too high or low output voltage.
      Result
      Result Proceed to
      Normal is displayed A
      Normal is not displayed B

    B

    GO TO BACKUP BOOST CONVERTER CIRCUIT Click here

    A

  7. CHECK MULTI-INFORMATION DISPLAY (CHARGING SYSTEM)

    Tech Tips

    Check for any malfunctions in the generator power generation condition.


    1. Check for any malfunctions in the charging system on the multi-information display.

      Result
      Result Proceed to
      No charging system malfunctions are displayed on the multi-information display. A
      Charging system malfunctions are displayed on the multi-information display. B

    B

    GO TO CHARGING SYSTEM for 8AR-FTS: Click here for 3ZR-FAE: Click here

    A

  8. READ VALUE USING GTS (BATTERY TEMPERATURE, IDLING STOP RATE AND TOTAL IDLING STOP RATE)

    Tech Tips

    Check the idling stop rate.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Temperature, Idling Stop Rate and Total Idling Stop Rate.


      Powertrain > Stop and Start > Data List
      Tester Display
      Battery Temperature
      Idling Stop Rate
      Total Idling Stop Rate

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Battery Temperature Battery fluid temperature

      Min.: -40°C (-40°F)

      Max.: 215°C (419°F)

      		 Changes according to actual temperature: Driving after engine warmed up -
      Idling Stop Rate Rate of the idling stop time to the entire engine switch on (IG) time of this trip

      Min.: 0%

      Max.: 255%

      		 - -
      Total Idling Stop Rate Rate of the overall idling stop time to the overall power switch on (IG) time

      Min.: 0%

      Max.: 255%

      		 - -
      Result
      Result Proceed to
      Battery Temperature Idling Stop Rate Total Idling Stop Rate
      3°C (37°F) or higher 50% or less 40% or less A
      0 to 3°C (32 to 37°F) [(25 / 3) x Battery fluid temperature (°C) + 25]% or less
      Less than 0°C (32°F) [Battery fluid temperature (°C) + 25]% or less
      3°C (37°F) or higher More than 50% More than 40% B
      0 to 3°C (32 to 37°F) More than [(25 / 3) x Battery fluid temperature (°C) + 25]%
      Less than 0°C (32°F) More than [Battery fluid temperature (°C) + 25]%

    B

    END (STOP AND START PROHIBITED DUE TO IDLING STOP RATE MORE THAN THRESHOLD OR TOTAL IDLING STOP RATE MORE THAN THRESHOLD) If Idling Stop Rate is more than threshold or Total Idling Stop Rate is more than threshold, leave the vehicle with the engine running until Idling Stop Rate drops below threshold or Total Idling Stop Rate drops below threshold. For details on the Idling Stop Rate and Total Idling Stop Rate thresholds, refer to System Description. Click here Prohibition according to the Idling Stop Rate is used to limit a high frequency of stop and start operations in order to ensure the lifespan of the battery. Operation may be prohibited again due to the customer usage conditions.

    A

  9. READ VALUE USING GTS (BATTERY TEMPERATURE, AMBIENT TEMPERATURE)

    Tech Tips

    Check the battery fluid temperature.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Temperature and Ambient Temperature.


      Powertrain > Stop and Start > Data List
      Tester Display
      Battery Temperature
      Ambient Temperature

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Battery Temperature Battery fluid temperature

      Min.: -40°C (-40°F)

      Max.: 215°C (419°F)

      		 Changes according to actual temperature: Driving after engine warmed up -
      Ambient Temperature Ambient temperature

      Min.: -40°C (-40°F)

      Max.: 215°C (419°F)

      		 Close to ambient temperature -
      Result
      Result Proceed to

      Both Battery Temperature and Ambient Temperature are suitable temperature

      (Battery Temperature: -10°C (14°F) or higher and 70°C (158°F) or less, Ambient Temperature: -5°C (23°F) or higher)

      		 A

      Battery Temperature or Ambient Temperature is not suitable temperature

      (Battery Temperature: -15°C (5°F) or less or 75°C (167°F) or higher, Ambient Temperature: -6°C (21.2°F) or less)

      		 B

      Tech Tips

      The Battery Temperature hysteresis is 5°C (9°F) and the Ambient Temperature hysteresis is 1°C (1.8°F).


    B

    END (STOP AND START CONTROL PROHIBITED DUE TO ABNORMAL BATTERY TEMPERATURE) If Battery Temperature is not a suitable temperature, leave the vehicle at ambient temperature to allow Battery Temperature to return to a suitable temperature. Operation is prohibited due to the battery fluid temperature to ensure engine startability and protect the battery. This occurs due to the usage environment.

    A

  10. READ VALUE USING GTS (STATUS OF BATTERY CHARGE CONTROL)

    Tech Tips

    Check whether stop and start control was prohibited based on the battery charge control mode.


    1. Connect the GTS to the DLC3.

    2. Start the engine and allow it to idle.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Status of Battery Charge Control.


      Powertrain > Stop and Start > Data List
      Tester Display
      Status of Battery Charge Control

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Status of Battery Charge Control Battery charge control status Charge Control Coordination Mode / Stop and Start Standalone Mode / Refresh Charge Mode / Stop and Start Restriction Mode / Temperature High/Low Mode / Abnormal Mode / Battery Condition Judgment Mode / Low Temperature Mode - -
      Result
      Result Proceed to
      "Refresh Charge Mode", "Battery Condition Judgment Mode" or "Abnormal Mode" is not displayed A
      "Refresh Charge Mode" is displayed B
      "Abnormal Mode" is displayed C
      "Battery Condition Judgment Mode" is displayed D

    B

    Let the vehicle idle with the battery fluid temperature at 11°C (52°F) or higher for 30 to 60 minutes to complete the refresh charge. (The refresh charge is complete when Status of Battery Charge Control changes from "Refresh Charge Mode".) After the refresh charge completes, turn the engine switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.

    C

    GO TO CHARGING SYSTEM for 8AR-FTS: Click here for 3ZR-FAE: Click here

    D

    END (STOP AND START CONTROL PROHIBITED IN BATTERY CONDITION JUDGMENT MODE)

    A

  11. READ VALUE USING GTS (STOP&START OPERATING PERMISSION (START MINIMUM VOLTAGE 1 AND 2)

    Tech Tips

    Check whether stop and start control was prohibited based on the minimum starting voltage of the battery condition.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Stop&Start Operating Permission (Start Minimum Voltage 1) and Stop&Start Operating Permission (Start Minimum Voltage 2).


      Powertrain > Stop and Start > Data List
      Tester Display
      Stop&Start Operating Permission (Start Minimum Voltage 2)
      Stop&Start Operating Permission (Start Minimum Voltage 1)

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Stop&Start Operating Permission (Start Minimum Voltage 2) Permission of stop and start control based on minimum voltage after cranking NG / OK OK: Minimum voltage when starter begins operation is equal to the threshold or higher If Stop&Start Operating Permission (Start Minimum Voltage 1 and 2) are OK, stop and start control is permitted.
      Stop&Start Operating Permission (Start Minimum Voltage 1) Permission of stop and start control based on minimum voltage during starting NG / OK OK: Minimum voltage when cranking is equal to the threshold or higher If Stop&Start Operating Permission (Start Minimum Voltage 1 and 2) are OK, stop and start control is permitted.
      Result
      Result Proceed to
      OK is displayed for 2 items A
      OK is displayed for 1 item or none B

      Tech Tips

      The Data List item "Stop&Start Operating Permission (Start Minimum Volt 1 or 2)" is judged OK or NG according to the values of the following Data List items.


      Powertrain > Stop and Start > Data List
      Tester Display
      Minimum Voltage (Cranking)
      Minimum Voltage (After Cranking)
      Battery Type

      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Minimum Voltage (Cranking) Minimum voltage when cranking engine

      Min.: -327.68 V

      Max.: 327.67 V

      		 6 to 11 V Lowest battery voltage measured after the cranking.
      Minimum Voltage (After Cranking) Minimum voltage when starter begins operation

      Min.: -327.68 V

      Max.: 327.67 V

      		 6 to 11 V Minimum battery voltage while the starter starts operating.
      Battery Type Set battery type Specified / Other

      Specified: Specified battery

      Other: Non-specified battery

      		 -
      Permission Criteria (Specified Battery)
      Tester Display Minimum Voltage (Cranking) Minimum Voltage (After Cranking)
      Stop&Start Operating Permission (Start Minimum Volt 1) 7.6 V or higher -
      Stop&Start Operating Permission (Start Minimum Volt 2) -

      for 8AR-FTS: 7.68 V or higher

      for 3ZR-FAE: 7.6 V or higher
      Permission Criteria (Non-specified Battery)
      Tester Display Min Voltage (Cranking) Min Volt (After Cranking)
      Stop&Start Operating Permission (Start Minimum Volt 1) 8.92 V or higher -
      Stop&Start Operating Permission (Start Minimum Volt 2) - 8.92 V or higher

    B

    CHARGE OR REPLACE BATTERY AFTER CHECKING BATTERY STATE Click here

    A

  12. READ VALUE USING GTS (STOP&START OPERATING PERMISSION (INTEGRATED CURRENT))

    Tech Tips

    Check whether stop and start control was prohibited based on the integrated current value battery condition.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Stop&Start Operating Permission (Integrated Current).


      Powertrain > Stop and Start > Data List
      Tester Display
      Stop&Start Operating Permission (Integrated Current)

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Stop&Start Operating Permission (Integrated Current) Permission of stop and start control based on the integrated current value conditions NG / OK OK: Integrated current value is equal to the threshold or more The status depends on the value of "Integrated Current".
      Result
      Result Proceed to
      OK is displayed A
      NG is displayed B

    A

    END (TURN ELECTRICAL LOAD OFF AS MUCH AS POSSIBLE)

    B

  13. READ VALUE USING GTS (INTEGRATED CURRENT)

    Tech Tips

    Judge the battery condition based on the integrated current value.


    1. Connect the GTS to the DLC3.

    2. Start the engine and allow it to idle.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Integrated Current.


      Powertrain > Stop and Start > Data List
      Tester Display
      Integrated Current

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Integrated Current Battery integrated current

      Min.: -268434.456 Asec

      Max.: 268435.4558 Asec

      		 Differs according to vehicle condition (charge/discharge conditions) -

      Tech Tips

      Judge whether the Data List item "Integrated Current" is OK or NG according to the following table.


      Powertrain > Stop and Start > Data List
      Tester Display
      Battery Current
      Battery Temperature
      Integrated Current
      Status of Battery Charge Control

      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Battery Current Battery current

      Min.: -125 A

      Max.: 124.9961 A

      		 - -
      Battery Temperature Battery fluid temperature

      Min.: -40°C (-40°F)

      Max.: 215°C (419°F)

      		 Changes according to actual temperature: Driving after engine warmed up -
      Integrated Current Battery integrated current

      Min.: -268434.456 Asec

      Max.: 268435.4558 Asec

      		 Differs according to vehicle condition (charge/discharge conditions) -
      Status of Battery Charge Control Battery charge control status Charge Control Coordination Mode / Stop and Start Standalone Mode / Refresh Charge Mode / Stop and Start Restriction Mode / Temperature High/Low Mode / Abnormal Mode / Battery Condition Judgment Mode / Low Temperature Mode - -
      Standard Integrated Current Value
      Status of Battery Charge Control Battery Temperature Integrated Current Proceed to
      Charge Control Coordination Mode, Stop and Start Standalone Mode, Low Temperature Mode and Temperature High/Low Mode -10°C (14°F) or higher and 70°C (158°F) Below -15444 Asec A
      Stop and Start Restriction Mode Below 0 Asec A
      Stop and Start Restriction Mode or Temperature High/Low Mode Below -15°C (5°F) or 75°C (167°F) or higher - B
      Cause and Action to be Taken
      Result Cause Action to be Taken
      A Integrated current value is limited for the stop and start control due to discharge or deterioration of the battery Check the battery condition and recharge the battery
      B Integrated current value is limited for stop and start control due to battery fluid temperature (too high/low) Leave the battery under room temperature conditions until its temperature becomes as specified. Then check the battery condition and recharge the battery.

      • Initialize* the battery integrated current using the GTS after charging the battery, and drive the vehicle until the stop and start control operates (approximately 5 to 40 minutes).

        *: Use the GTS to perform Integrated Current Value Initialization.

        Click here

        Tech Tips

        If the Data List item "Integrated Current" is 0 Asec or higher, it is not necessary to perform initialization.

      • When the battery state sensor assembly current value is normal, recharge or replace the battery

      • When the electrical load is large, a large amount of electrical discharge occurs. As a result, the integrated current value (battery charge amount) tends to drop causing operation to be prohibited.

      Result
      Proceed to
      NEXT

    NEXT

    CHARGE BATTERY AFTER CHECKING BATTERY STATE AND THEN INITIALIZE INTEGRATED CURRENT VALUE AND DRIVE VEHICLE UNTIL STOP AND START CONTROL OPERATES (APPROXIMATELY 5 TO 40 MINUTES) Refer to Integrated Current Value Initialization. CHARGE BATTERY AFTER CHECKING BATTERY STATE AND THEN INITIALIZE INTEGRATED CURRENT VALUE AND DRIVE VEHICLE UNTIL STOP AND START CONTROL OPERATES (APPROXIMATELY 5 TO 40 MINUTES) Click here

  14. CHECK BATTERY SETTINGS AND EQUIPPED 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: Powertrain / / Data List / Stop&Start Operating Prohibition (Jump Start). / Data List / Battery Type.


      Powertrain > Stop and Start > Data List
      Tester Display
      Battery Type

    5. Check the "Battery Type" Data List Item.


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Battery Type Set battery type Specified / Other

      Specified: Specified battery

      Other: Non-specified battery

      		 -

    6. Check whether the battery is specified or not specified.

      Result
      Data List Battery Type Display Equipped Battery Proceed to
      Other Specified battery A
      Other Non-specified battery B

    B

    When switching to a specified battery, Battery Type may not immediately switch to "Specified". To immediately switch it to "Specified", perform Switch Battery Type. Click here

    A

  15. SWITCH BATTERY TYPE


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. for 8AR-FTS:

      Enter the following menus: Powertrain / Engine / Utility / Switch Battery Type.


      Powertrain > Engine > Utility
      Tester Display
      Switch Battery Type

      for 3ZR-FAE:

      Enter the following menus: Powertrain / Engine and ECT / Utility / Switch Battery Type.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Switch Battery Type

    5. Perform Switch Battery Type under Utility and set the Specified battery.

    6. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Type.


      Powertrain > Stop and Start > Data List
      Tester Display
      Battery Type

    7. Check that the "Battery Type" Data List item is set to "Specified".


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Battery Type Set battery type Specified / Other

      Specified: Specified battery

      Other: Non-specified battery

      		 -
      Result
      Proceed to
      NEXT

    NEXT

    END

  16. READ VALUE USING GTS (HOOD COURTESY SWITCH)

    Tech Tips

    Check the engine hood courtesy switch (hood lock assembly).


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Hood Courtesy Switch.


      Powertrain > Stop and Start > Data List
      Tester Display
      Hood Courtesy Switch

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Hood Courtesy Switch Hood courtesy switch signal ON / OFF

      ON: Engine hood closed

      OFF: Engine hood opened

      		 -
      Result
      Result Proceed to
      When engine hood condition changes from open to closed, Data List switches from OFF to ON A
      When engine hood condition changes from open to closed, Data List remains OFF B

      Tech Tips

      If the result is OK, the engine may have been started with the engine hood open to perform a jump start. Close the engine hood and start the engine again.


    B

    GO TO ENGINE HOOD COURTESY SWITCH CIRCUIT (OPERATION PROHIBITED AS ENGINE HOOD STATE DOES NOT CHANGE TO CLOSE) Click here

    A

  17. READ VALUE USING GTS (STOP&START OPERATING PROHIBITION (JUMP START))


    1. Check that the engine hood is closed.

    2. Turn the engine switch off and wait for 30 seconds or more.

    3. Turn the engine switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / Stop and Start / Data List / Stop&Start Operating Prohibition (Jump Start).


      Powertrain > Stop and Start > Data List
      Tester Display
      Stop&Start Operating Prohibition (Jump Start)

    6. Check that the Data List item "Stop&Start Operating Prohibition (Jump Start)" displays "Permit".


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Stop&Start Operating Prohibition (Jump Start) Prohibition of stop and start control based on the jump start conditions Permit / Prohibit Prohibit: Engine started with the engine hood open and the engine switch turned on (START) When Prohibit is displayed, stop and start control will be prohibited until the engine switch is turned off.
      Result
      Proceed to
      NEXT

      Tech Tips

      Stop and start control may be prohibited if the engine was started with the engine hood open.


    NEXT

    END

  18. CHARGE OR REPLACE BATTERY AFTER CHECKING BATTERY STATE


    1. Check the battery.


      Tech Tips


      • Charge or replace the battery according to the check result.

      • When the cable is disconnected from the battery terminal or the charging control system is checked (ECM connector is disconnected), do not perform this procedure, as there is a high possibility that the system may enter refresh charge mode and operation may be prohibited.

    2. Check the starter inrush current reduction relay.

      Click here

    3. Connect the GTS to the DLC3.

    4. Start the engine.

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Current.


      Powertrain > Stop and Start > Data List
      Tester Display
      Battery Current

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


      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Battery Current Battery current

      Min.: -125 A

      Max.: 124.9961 A

      		 - -

    8. While idling, illuminate the headlights (Lo).

      Tech Tips

      The headlights (Lo) are illuminated so that charging control is prohibited, which sets the voltage to a fixed value.

    9. Charge the battery for approximately 5 minutes after Battery Current drops 5 A or less.

      Tech Tips

      The Data List item Battery Current decreases when the battery is charged. If the battery is charged for 5 minutes after Battery Current drops to 5 A or less, it can be determined that the battery is sufficiently charged.

    10. Turn off the headlights.

    11. Turn the engine switch off and wait for 30 seconds or more.

    12. Start the engine and check the following Data List items.


      Powertrain > Stop and Start > Data List
      Tester Display
      Minimum Voltage (Cranking)
      Minimum Voltage (After Cranking)
      Stop&Start Operating Permission (Start Minimum Voltage 2)
      Stop&Start Operating Permission (Start Minimum Voltage 1)

      Powertrain > Stop and Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Minimum Voltage (Cranking) Minimum voltage when cranking engine

      Min.: -327.68 V

      Max.: 327.67 V

      		 6 to 11 V Lowest battery voltage measured after the cranking.
      Minimum Voltage (After Cranking) Minimum voltage when starter begins operation

      Min.: -327.68 V

      Max.: 327.67 V

      		 6 to 11 V Minimum battery voltage while the starter starts operating.
      Stop&Start Operating Permission (Start Minimum Voltage 2) Permission of stop and start control based on minimum voltage after cranking NG / OK OK: Minimum voltage when starter begins operation is equal to the threshold or higher If Stop&Start Operating Permission (Start Minimum Voltage 1 and 2) are OK, stop and start control is permitted.
      Stop&Start Operating Permission (Start Minimum Voltage 1) Permission of stop and start control based on minimum voltage during starting NG / OK OK: Minimum voltage when cranking is equal to the threshold or higher If Stop&Start Operating Permission (Start Minimum Voltage 1 and 2) are OK, stop and start control is permitted.
      Permission Criteria (Specified Battery)
      Tester Display Min Voltage (Cranking) Min Volt (After Cranking)
      Stop&Start Operating Permission (Start Minimum Volt 1) 7.6 V or higher -
      Stop&Start Operating Permission (Start Minimum Volt 2) -

      for 8AR-FTS: 7.68 V or higher

      for 3ZR-FAE: 7.6 V or higher
      Permission Criteria (Non-specified Battery)
      Tester Display Min Voltage (Cranking) Min Volt (After Cranking)
      Stop&Start Operating Permission (Start Minimum Volt 1) 8.92 V or higher -
      Stop&Start Operating Permission (Start Minimum Volt 2) - 8.92 V or higher

    13. Replace the battery in the following situations.


      • Stop&Start Operating Permission (Start Minimum Volt (1 and 2)) are not OK

      • Stop&Start Operating Permission (Start Minimum Volt (1 and 2)) are OK, but Min Voltage (Cranking) and Min Volt (After Cranking) values are close to permission criteria

      Result
      Proceed to
      NEXT

    NEXT

    INITIALIZE INTEGRATED CURRENT VALUE AND DRIVE VEHICLE UNTIL STOP AND START CONTROL OPERATES (APPROXIMATELY 5 TO 40 MINUTES) Refer to Integrated Current Value Initialization. INITIALIZE INTEGRATED CURRENT VALUE AND DRIVE VEHICLE UNTIL STOP AND START CONTROL OPERATES (APPROXIMATELY 5 TO 40 MINUTES) Click here