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Stop and Start System does not Operate (Battery Condition) [09/2023 - ]: Procedure

  1. CONFIRM MODEL 
    1. Check whether a multi-information display is equipped.

      Result

      Result Proceed to
      Equipped A
      Not equipped B

    Result: 

    B 

    See step  3

    Result: 

    A 

    See step  2

  2. CHECK MULTI-INFORMATION DISPLAY 
    1. Check whether the multi-information display displayed that the specified battery is not equipped.

      HINT: 

      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

    Result: 

    B 

    See step  20

    Result: 

    A 

    See step  3

  3. CHECK DTC OUTPUT 
    1. Enter the following menus: Powertrain / Stop and Start / Trouble Codes.
    2. Read the DTCs.

      Powertrain > Stop and Start > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    Result: 

    B 

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2023 - ] 

    Result: 

    A 

    See step  4

  4. CHECK VEHICLE CONTROL HISTORY 
    1. Enter the following menus: Powertrain / Stop and Start / Utility / Vehicle Control History.

      Powertrain > Stop and Start > Utility 

      Tester Display
      Vehicle Control History (RoB)
    2. Check the vehicle control history (RoB).

      Result

      Result Proceed to
      Vehicle Control History (RoB) are not output Next

    Result: 

    Next 

    See step  5

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

    HINT: 

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

    1. 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)
    2. 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

    Result: 

    B 

    END (CHECK OTHER STOP AND START CONTROL PERMISSION/PROHIBITION CONDITIONS). Refer to  SYSTEM DESCRIPTION [09/2023 - ] 

    Result: 

    A 

    See step  6

  6. READ VALUE USING GTS (BATTERY TYPE) 
    1. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Type.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Battery Type
    2. 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      		 -
    3. Check whether the battery is specified or not specified.

      Result

      GTS Display Proceed to
      Specified A
      Other B

    Result: 

    B 

    See step  20

    Result: 

    A 

    See step  7

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

    HINT: 

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

    1. 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)
    2. 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 Permit: Except for jump start conditions When Prohibit is displayed, stop and start control will be prohibited until the ignition switch is turned off.
      Jump start conditions: Engine started with the engine hood open and the ignition switch turned START

      Result

      Result Proceed to
      Permit is displayed A
      Prohibit is displayed B

      HINT: 

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

    Result: 

    B 

    See step  18

    Result: 

    A 

    See step  8

  8. READ VALUE USING GTS (STATE OF BBC) 

    HINT: 

    Check the operation of the backup boost converter.

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

      Powertrain > Stop and Start > Data List 

      Tester Display
      State of BBC
    2. 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 ignition switch is turned to ON.
      • Overload:
        • Overcurrent is detected.
      • Overvoltage:
        • When the ignition switch is ON:
          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

    Result: 

    B 

    GO TO BACKUP BOOST CONVERTER CIRCUIT. Refer to  Backup Boost Converter Circuit [09/2023 - ]  

    Result: 

    A 

    See step  9

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

    HINT: 

    Check the idling stop rate.

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

      Powertrain > Stop and Start > Data List 

      Tester Display
      Battery Fluid Temperature
      Idling Stop Rate
      Total Idling Stop Rate
    2. 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 Fluid Temperature Estimated temperature inside battery 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 ignition switch to ON time of this trip Min.: 0%
      Max.: 255%      		 - Refer to Registration for how to perform learning.
      When 50% or less, the stop and start system is permitted to operate.
      Total Idling Stop Rate Rate of the overall idling stop time to the overall ignition switch to ON time Min.: 0%
      Max.: 255%      		 - When 40% or less, the stop and start system is permitted to operate.

      Result

      Result  Proceed to
      Total Idling Stop Rate  Idling Stop Rate 
      40% or less - A
      - 50% or less
      Other than above B

    Result: 

    B 

    END (STOP AND START PROHIBITED DUE TO IDLING STOP RATE MORE THAN THRESHOLD OR TOTAL IDLING STOP RATE MORE THAN THRESHOLD) 

    HINT: 

    • 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.

      Refer to SYSTEM DESCRIPTION [09/2023 - ]

    • 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.

    Result: 

    A 

    See step  10

  10. READ VALUE USING GTS (BATTERY FLUID TEMPERATURE) 

    HINT: 

    Check the battery fluid temperature.

    1. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Fluid Temperature.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Battery Fluid Temperature
      Ambient Temperature
    2. 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 Fluid Temperature Estimated temperature inside battery Min.: -40°C (-40°F)
      Max.: 215°C (419°F)      		 Changes according to actual temperature: Driving after engine warmed up -

      Result

      Result Proceed to
      Battery Fluid Temperature is suitable temperature
      (Battery Fluid Temperature: -10°C (14°F) or higher and 60°C (140°F) or less)      		 A
      Battery Fluid Temperature is not suitable temperature
      (Battery Fluid Temperature: -15°C (5°F) or less, or 65°C (149°F) or higher or higher)      		 B

      HINT: 

      The Battery Fluid Temperature hysteresis is 5°C (9°F).

    Result: 

    B 

    END (STOP AND START CONTROL PROHIBITED DUE TO ABNORMAL BATTERY FLUID TEMPERATURE) 

    HINT: 

    • If battery fluid temperature is not a suitable temperature, leave the vehicle at ambient temperature to allow battery fluid 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.

    Result: 

    A 

    See step  11

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

    HINT: 

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

    1. Start the engine and allow it to idle.
    2. 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
    3. 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" or "Battery Condition Judgment Mode" is not displayed A
      "Refresh Charge Mode" is displayed B
      "Battery Condition Judgment Mode" is displayed* -

      HINT: 

      *: When "Battery Condition Judgment Mode" is displayed, wait approximately 2 minutes for the mode to change and then check the value.

    Result: 

    B 

    END (STOP AND START CONTROL PROHIBITED IN REFRESH CHARGE MODE) 

    HINT: 

    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 ignition 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.

    Result: 

    A 

    See step  12

  12. READ VALUE USING GTS (STOP&START OPERATING PERMISSION (MINIMUM VOLTAGE (STARTER SOLENOID ENGAGEMENT) AND MINIMUM VOLTAGE (CRANKING)) 

    HINT: 

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

    1. Enter the following menus: Powertrain / Stop and Start / Data List / Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement)) and Stop&Start Operating Permission (Minimum Voltage (Cranking)).

      Powertrain > Stop and Start > Data List 

      Tester Display
      Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement))
      Stop&Start Operating Permission (Minimum Voltage (Cranking))
    2. 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 (Minimum Voltage (Starter Solenoid Engagement)) Permission of stop and start control based on minimum voltage during clutch pinion gear engagement NG / OK OK: Minimum voltage when starter begins operation is equal to the threshold or higher If both Minimum Voltage (Starter Solenoid Engagement) condition and Minimum Voltage (Cranking) condition are OK, stop and start control is permitted.
      Stop&Start Operating Permission (Minimum Voltage (Cranking)) Permission of stop and start control based on minimum voltage during cranking NG / OK OK: Minimum voltage when cranking is equal to the threshold or higher If both Minimum Voltage (Starter Solenoid Engagement) condition and Minimum Voltage (Cranking) condition 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

      HINT: 

      • The Data List item "Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement)) and Stop&Start Operating Permission (Minimum Voltage (Cranking))" is judged OK or NG according to the values of the following Data List items.
      • If stop and start control is prohibited (NG) due to battery voltage, stop and start control will begin operating again (OK) when one of the following conditions is met.
        • When the engine is started and the battery voltage permission conditions are met after the ignition switch is turned off and 8 hours have elapsed.
        • When the battery voltage permission conditions are met after "Starter (Hood Closed)" is performed using the GTS.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Minimum Voltage (Cranking)
      Minimum Voltage (Starter Solenoid Engagement)
      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 starter starts operating.
      Minimum Voltage (Starter Solenoid Engagement) 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 (Starter Solenoid Engagement) Minimum Voltage (Cranking)
      Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement)) 8.8 V or higher -
      Stop&Start Operating Permission (Minimum Voltage (Cranking)) - 8.3 V or higher

      Permission Criteria (Non-specified Battery)

      Tester Display Minimum Voltage (Starter Solenoid Engagement) Minimum Voltage (Cranking)
      Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement)) 8.92 V or higher -
      Stop&Start Operating Permission (Minimum Voltage (Cranking)) - 8.92 V or higher

    Result: 

    B 

    See step  17

    Result: 

    A 

    See step  13

  13. READ VALUE USING GTS (STOP&START OPERATING PROHIBITED BY BATTERY LOW VOLTAGE) 

    HINT: 

    Check whether stop and start control is prohibited due to stop and start control being performed for a short period of time when the battery voltage was low.

    1. Enter the following menus: Powertrain / Stop and Start / Data List / Stop&Start Status Operating Prohibited by Battery Low Voltage.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Stop&Start Operating Prohibited by Battery Low Voltage
    2. 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 Prohibited by Battery Low Voltage Prohibits stop and start control according to low battery voltage No / Yes Yes: Not permitted
      No: Permitted      		 -

      Result

      Result Proceed to
      No is displayed A
      Yes is displayed B

    Result: 

    B 

    See step  17

    Result: 

    A 

    See step  14

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

    HINT: 

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

    1. 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)
    2. 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", and the OK/NG threshold differs according to the status of battery charge control.

      Result

      Result Proceed to
      OK is displayed A
      NG is displayed B

    Result: 

    B 

    See step  16

    Result: 

    A 

    See step  15

  15. READ VALUE USING GTS (LOW CAPACITY BY BATTERY DEGRADATION) 

    HINT: 

    Judge the battery condition based on the integrated current value.

    1. Start the engine and allow it to idle.
    2. Enter the following menus: Powertrain / Stop and Start / Data List / Stop&Start Permission Status (Low Capacity by Battery Degradation).

      Powertrain > Stop and Start > Data List 

      Tester Display
      Stop&Start Permission Status (Low Capacity by Battery Degradation)
    3. 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 Permission Status (Low Capacity by Battery Degradation) Stop and start permission status according to battery capacity deterioration Permit / Tentative Permit / Prohibit Permit -

      Result

      Result Proceed to
      Permit is displayed A
      Tentative permit or prohibit is displayed B

    Result: 

    A 

    END (TURN ELECTRICAL LOAD OFF AS MUCH AS POSSIBLE) 

    Result: 

    B 

    See step  17

  16. READ VALUE USING GTS (INTEGRATED CURRENT) 

    HINT: 

    Judge the battery condition based on the integrated current value.

    1. Start the engine and allow it to idle.
    2. Enter the following menus: Powertrain / Stop and Start / Data List / Integrated Current.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Integrated Current
    3. 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 Asec
      Max.: 268435 Asec      		 Differs according to the vehicle condition (charge/discharge conditions) -

      HINT: 

      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
      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      		 - -
      Integrated Current Battery integrated current Min.: -268434 Asec
      Max.: 268435 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 Integrated Current Proceed to
      Charge Control Coordination Mode, Stop and Start Standalone Mode and Low Temperature Mode Below -4554 A-sec A
      Stop and Start Restriction Mode and Temperature High/Low Mode Below 0 A-sec 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
      1. Electrical load is excessive
      2. Battery deterioration
      3. Refresh charging was not completed properly
      1. Turn electrical load off as much as possible
      2. CHARGE OR REPLACE BATTERY AFTER CHECKING BATTERY STATE (refer to procedure 17)
      3. Restart the engine after waiting 30 seconds or more after ignition switch to OFF. If refresh charging begins once more, wait until refresh charging completes while idling.
      • 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.

        Refer to REGISTRATION [09/2023 - ]

        HINT: 

        If the Data List item "Integrated Current" is 0 A-sec 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

    Result: 

    NEXT 

    CHECKING BATTERY STATE 

    1. If the integrated current value does not exceed the threshold*1 even though the battery has been replaced or charged until the battery current decreases to 5 A or less, perform an integrated current value initialization*2 and drive the vehicle for approximately 5 to 40 minutes until the stop and start system operates.

      HINT: 

  17. CHARGE OR REPLACE BATTERY AFTER CHECKING BATTERY STATE 
    1. Check the battery.

      Refer to ON-VEHICLE INSPECTION [09/2023 - ]

      HINT: 

      • 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.

      Refer to Starter Inrush Current Reduction Relay Circuit [09/2023 - ] 

    3. Start the engine.
    4. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Current.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Battery 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
      Battery Current Battery current Min.: -125 A
      Max.: 124.9961 A      		 Differs according to vehicle condition (charge/discharge conditions) -
    6. While idling, illuminate the headlights (Lo).

      HINT: 

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

    7. Charge the battery for approximately 5 minutes after battery Current drops to 5 A or less.

      HINT: 

      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.

    8. Turn off the headlights.
    9. Turn the ignition switch off and wait for 30 seconds or more.
    10. Start the engine and check the following Data List items.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Minimum Voltage (Cranking)
      Minimum Voltage (Starter Solenoid Engagement)
      Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement))
      Stop&Start Operating Permission (Minimum Voltage (Cranking))

      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 starter starts operating.
      Minimum Voltage (Starter Solenoid Engagement) 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 (Minimum Voltage (Starter Solenoid Engagement)) Permission of stop and start control based on minimum voltage during clutch pinion gear engagement NG / OK OK: Minimum voltage when starter begins operation is equal to the threshold or higher If both Minimum Voltage (Starter Solenoid Engagement) condition and Minimum Voltage (Cranking) condition are OK, stop and start control is permitted.
      Stop&Start Operating Permission (Minimum Voltage (Cranking)) Permission of stop and start control based on minimum voltage during cranking NG / OK OK: Minimum voltage when cranking is equal to the threshold or higher If both Minimum Voltage (Starter Solenoid Engagement) condition and Minimum Voltage (Cranking) condition are OK, stop and start control is permitted.

      Permission Criteria (Specified Battery)

      Tester Display Minimum Voltage (Starter Solenoid Engagement) Minimum Voltage (Cranking)
      Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement)) 8.8 V or higher -
      Stop&Start Operating Permission (Minimum Voltage (Cranking)) - 8.3 V or higher

      Permission Criteria (Non-specified Battery)

      Tester Display Minimum Voltage (Starter Solenoid Engagement) Minimum Voltage (Cranking)
      Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement)) 8.92 V or higher -
      Stop&Start Operating Permission (Minimum Voltage (Cranking)) - 8.92 V or higher
    11. Replace the battery in the following situations.
      • Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement) and Start Minimum Voltage (Cranking)) are not OK
      • Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement) and Start Minimum Voltage (Cranking)) are OK, but Minimum Voltage (Cranking) and Minimum Voltage (Starter Solenoid Engagement)) values are close to permission criteria

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    CHECKING BATTERY STATE 

    1. If the integrated current value does not exceed the threshold*1 even though the battery has been replaced or charged until the charging current decreases to 5 A or less, perform an integrated current value initialization*2 and drive the vehicle for approximately 5 to 40 minutes until the stop and start system operates.

      HINT: 

  18. READ VALUE USING GTS (HOOD COURTESY SWITCH) 

    HINT: 

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

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

      Powertrain > Stop and Start > Data List 

      Tester Display
      Hood Courtesy Switch
    2. 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 open      		 The stop and start system is permitted to operate 3 seconds after the engine hood is closed.

      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

      HINT: 

      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.

    Result: 

    B 

    GO TO ENGINE HOOD COURTESY SWITCH CIRCUIT (OPERATION PROHIBITED AS ENGINE HOOD STATE DOES NOT CHANGE TO CLOSE). Refer to  Engine Hood Courtesy Switch Circuit [09/2023 - ]  

    Result: 

    A 

    See step  19

  19. READ VALUE USING GTS (STOP&START OPERATING PROHIBITION (JUMP START)) 
    1. Check that the engine hood is closed.
    2. Turn the ignition switch off and wait for 30 seconds or more.
    3. 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)
    4. 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 Permit: Except for jump start conditions When Prohibit is displayed, stop and start control will be prohibited until the ignition switch is turned off.
      Jump start conditions: Engine started with the engine hood open and the ignition switch turned START

      Result

      Proceed to
      NEXT

      HINT: 

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

    Result: 

    NEXT 

    END 

  20. CHECK BATTERY SETTINGS AND EQUIPPED BATTERY 
    1. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Type.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Battery Type
    2. 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      		 -
    3. 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

    Result: 

    B 

    EXPLAIN TO CUSTOMER THAT STOP AND START SYSTEM IS LIMITED TO PREVENT BATTERY MALFUNCTION WHEN A NON-SPECIFIED BATTERY IS USED 

    HINT: 

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

    Refer to REGISTRATION [09/2023 - ]

    Result: 

    A 

    See step  21

  21. SWITCH BATTERY TYPE 
    1. Enter the following menus: Powertrain / Engine / Utility / Switch Battery Type.

      Powertrain > Engine > Utility 

      Tester Display
      Switch Battery Type
    2. Perform Switch Battery Type under Utility and set the Specified battery.
    3. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Type.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Battery Type
    4. 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

    Result: 

    NEXT 

    END 

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