STOP AND START SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips

    Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    Note

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.


    1. Warm up the engine.

    2. Turn the ignition switch off.

    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.

    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
    Eco Warning Stop and start indicator light status ON / OFF

    ON: Idling stop being performed

    OFF: Idling stop not being performed

    (When system is normal)

    		 ON: Any malfunction occurs in the system and the stop and start indicator light is blinking.
    Coolant Temp Engine coolant temperature

    Min.: 16°C (60.8°F)

    Max.: 127°C (260.6°F)

    		 75 to 95°C (167 to 203°F): Idling after engine warmed up This is sent from the ECM.
    Engine Spd (ECM) Engine speed signal from ECM via CAN communication

    Min.: -25600 rpm

    Max.: 25599 rpm

    		 600 to 700 rpm: When idling after warm-up, shift lever in neutral and no load This is sent from the ECM.
    Engine Spd (NE Signal) Engine speed signal from ECM via direct line

    Min.: -25600 rpm

    Max.: 25599 rpm

    		 600 to 700 rpm: When idling after warm-up, shift lever in neutral and no load The pulse signal sent is from NEO terminal of the ECM.
    Deceleration Sens Offset Val Deceleration sensor offset value

    Min.: -1176.008 m/s2

    Max.: 1176.007 m/s2

    -0.903 to 0.903 m/s2: After deceleration sensor zero point learning completion

    		 -
    Deceleration Sens Calibration Deceleration sensor calibration status Incmpl / Running / Compl / Err1 / Err2 / Err3 Compl: After deceleration sensor zero point learning completion -
    Gradient of Road Surface Degree of road gradient

    Min.: -10.24 m/s2

    Max.: 10.16 m/s2

    		- -
    Battery Voltage Battery voltage

    Min.: 0 V

    Max.: 20 V

    		 9 to 14 V: Idling -
    Battery Fluid Temperature Battery fluid temperature

    Min.: -40°C (-40°F)

    Max.: 100°C (212°F)

    		 Changes according to actual temperature: Driving after engine warmed up -
    Battery Temp (Start) Battery temperature at engine start

    Min.: -40°C (-40°F)

    Max.: 100°C (212°F)

    		 Same as temperature around battery at engine start (after engine start) -
    Engine Type Information Information on the engine type from the SFI system Avail / Not Avl Avail: Information of engine type received from ECM through CAN communication Not Avl is displayed if improper engine type information is received from the ECM via CAN communication.
    Starter Type Starter assembly type Other than Tandem Starter / Tandem Starter Other than Tandem Starter -
    D Courtesy Switch Signal Driver door courtesy switch signal ON / OFF

    ON: Driver side door open

    OFF: Driver side door closed

    		 -
    Hood Courtesy Switch Hood courtesy switch signal ON / OFF

    ON: Engine hood closed

    OFF: Engine hood open

    		 -
    Neutral Switch Neutral start switch assembly signal ON / OFF

    ON: Shift lever in neutral

    OFF: Shift lever not in neutral

    		 -
    Clutch Lower SW Clutch start switch assembly signal ON/OFF

    ON: Clutch pedal fully depressed

    OFF: Clutch pedal released

    		 -
    Starter Starter status ON / OFF

    ON: Cranking

    OFF: Not cranking

    		 -
    Pinion Gear Starter pinion status ON / OFF

    ON: Starter pinion operate

    OFF: Starter pinion not operated

    		 -
    TC Terminal TC and CG terminals of DLC3 ON / OFF

    ON: TC and CG terminals of DLC3 connected

    OFF: TC and CG terminals of DLC3 disconnected

    		 -
    Cancel Switch Stop and start system cancel switch (electric parking brake switch assembly) signal ON / OFF

    ON: Stop and start system cancel switch (electric parking brake switch assembly) pressed

    OFF: Stop and start system cancel switch (electric parking brake switch assembly) not pressed

    		 -
    IG Switch Ignition or starter switch assembly signal ON / OFF ON: Ignition switch ON -
    Idle Engine idling status ON / OFF

    ON: Accelerator pedal fully released

    OFF: Accelerator pedal depressed

    		 This is sent from the ECM.
    Engine Start (IG SW) Engine start by ignition or starter switch assembly operation ON / OFF

    ON: Engine start by ignition or starter switch assembly operation

    OFF: Except engine start by ignition or starter switch assembly operation

    		 Indicates starter operation by operation of the ignition or starter switch assembly
    Engine Starter Signal Starter signal status ON / OFF

    ON: Cranking

    OFF: Not cranking

    		 This is sent from the ECM.
    Buzzer Buzzer status ON / OFF

    ON: Buzzer ON

    OFF: Buzzer does not sound

    		 Refer to warning buzzer operation conditions.
    Indicat. Light Eco Stop and start indicator light status ON / OFF

    ON: Stop and start indicator light on or blinking

    OFF: Stop and start indicator light off

    		 -
    Oil Prs Warn Light Prohibit Oil pressure warning light status Permit / Prohibit

    Prohibit: During engine stop by stop and start control

    Permit: Not during engine stop by stop and start control

    		 Engine stop and start ECU informs the combination meter assembly that the oil pressure warning light does not come on during engine stop by stop and start control.
    S&S Cancel Light Code Transmission code from the engine stop and start ECU to the combination meter assembly

    0: extinction

    1: lighting

    2: blink

    3: -

    4: DTC output

    0: Stop and start cancel indicator light off

    1: Stop and start cancel indicator light on

    		 Stop and start cancel indicator light on/blinking/off request sent to combination meter assembly.
    Starter Operation # Number of starter operations (count record)

    Min.: 0

    Max.: 1048575

    		 - -
    Number of Engine Starts (IG-ON) The number of starter operations by ignition or starter switch assembly operation

    Min.: 0

    Max.: 16777215

    		 - -
    Number of Engine Starts (Stop & Start) The number of starter operations by stop and start control

    Min.: 0

    Max.: 16777215

    		 - -
    Number of Engine Starts (Clutch Released) The number of starter operations without clutch pedal being depressed

    Min.: 0

    Max.: 16777215

    		 - -
    Number of Engine Starts (Clutch Half-Depressed) The number of starter operations with clutch pedal depressed halfway

    Min.: 0

    Max.: 16777215

    		 - -
    Number of Engine Starts (Restart after Engine Stall) The number of starter operations by restart after engine stall

    Min.: 0

    Max.: 16777215

    		 - -
    Vehicle Spd1 (ABS/VSC) Vehicle speed signal from skid control ECU via CAN communication

    Min.: 0 km/h (0 mph)

    Max.: 327.67 km/h (203.6 mph)

    		 0 km/h (0 mph): Vehicle stopped -
    Steering Angle Steering angle

    Min.: -49152 deg

    Max.: 49150.5 deg

    		 - -
    Steering Angle Velocity Steering wheel turning speed

    Min.: -32768 deg/s

    Max.: 32767 deg/s

    		 - -
    Steering Wheel Torque Steering force

    Min.: -327.68 Nm

    Max.: 327.67 Nm

    		 - -
    Battery Current Battery current

    Min.: -125 A

    Max.: 124.99 A

    		 - -
    Brake Boost Pressure Brake booster pressure (absolute pressure)

    Min.: -640 kPa (-4800 mmHg, -188 in.Hg)

    Max.: 112 kPa (840 mmHg, 33.0 in.Hg)

    		 Approx. 100 kPa (750 mmHg, 29.5 in.Hg): Ignition switch ON, brake pedal depressed several times (differs according to atmospheric pressure) -
    Brake Negative Pressure Brake booster vacuum (negative pressure)

    Min.: -640 kPa (-4800 mmHg, -188 in.Hg)

    Max.: 639.98 kPa (4800 mmHg, 188 in.Hg)

    		 Approx. 0 kPa (0 mmHg, 0 in.Hg): Ignition switch ON, brake pedal depressed several times This item cannot be checked if a malfunction occurs in communication with ECM.
    Ambient Temp Sensor Ambient temperature

    Min.: -80°C (-112°F)

    Max.: 79.9°C (175.8°F)

    		 Close to ambient temperature -
    Stop&Start of Eng State Stop and start control status IG / Run / Stopreq / Stop / Restart

    • IG: Engine stopped

    • Run: Engine running

    • Stopreq: Engine stop requested

    • Stop: Engine stopped (by stop and start control)

    • Restart: Engine restarted

    		 -
    Stop & Start A/C Mode Selected air conditioning mode Undefined / Normal / S&S Prioritized (Extended) - -
    Idling Stop Rate Rate of idling stop time to entire ignition switch ON time of this trip

    Min.: 0%

    Max.: 100%

    		 - -
    Total Idling Stop Rate Rate of total idling stop time until now

    Min.: 0%

    Max.: 100%

    		 - -
    Integrated Current Battery integrated current

    Min.: -268434.45 A-sec

    Max.: 268435.45 A-sec

    		 Differs according to vehicle condition (charge/discharge conditions) Refer to "Regarding Battery Integrated Current" for details.*
    Cranking Time Engine cranking time

    Min.: 0 ms

    Max.: 134215 ms

    		 300 to 3000 ms: Duration of starter operation by stop and start control -
    Min Voltage(Cranking) Minimum voltage when cranking engine

    Min.: 0 V

    Max.: 327.67 V

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

    Min.: 0 V

    Max.: 327.67 V

    		 6 to 11 V Minimum battery voltage while the starter operating
    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 - -
    State of BBC Backup boost converter status Cycle Err / Overvol / Overload / Normal / Low Vol / Duty Err / S&S Sensor Electric Supply Low / S&S CPU Malfunction / BBC Overcurrent / S&S Starter Overcurrent / S&S 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.

    • Overvol:


      • 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.
    Atmosphere Pressure Atmospheric pressure (calculated value)

    Min.: 0 kPa (0 kgf/cm2, 0 psi)

    Max.: 255 kPa (2.6 kgf/cm2, 37 psi)

    Approx. 100 kPa (1.0 kgf/cm2, 15 psi): Ignition switch ON (close to actual atmospheric pressure)

    		 ECM calculated value
    EPS Load Electric power steering current

    Min.: -327.68 A

    Max.: 327.67 A

    		 Approx. 0 A: EPS assist not activated -
    Accelerator Position Accelerator pedal position

    Min.: 0%

    Max.: 127.5%

    		 Actual accelerator pedal position -
    Engine OFF Request Engine stop request ON / OFF

    ON: During engine stop by stop and start control

    OFF: Not during engine stop by stop and start control

    		 ON is displayed when fuel-cut is performed by stop and start control, engine start is not requested, or starter is forced to operate.
    Manual Start during S&S Manual start during stop and start control operation ON/OFF - -
    Wrong Operation (Start) Incorrect operation for engine start ON / OFF - Unused
    N/Clutch Lower SW Abnoml Clutch start switch assembly (for lower) ON / OFF - -
    N/Clutch Upper SW Abnoml Clutch switch assembly (for upper) ON / OFF - -
    Running History Vehicle driving record ON / OFF ON: History of driving vehicle at 2 km/h (1 mph) or more (without DTC output) Turns OFF when the engine is stopped by stop and start control.
    4WD Available Whether the vehicle is equipped with a 4 wheel drive control ECU No / Yes

    No: Not equipped

    Yes: Equipped

    		 Unused
    IPA Available Whether the vehicle is equipped with the intelligent parking assist function No / Yes

    No: Not equipped

    Yes: Equipped

    		 -
    Air Suspension Available Availability of air suspension system on vehicle No / Yes - Unused
    Welcab Available Availability of side lift up seat system on vehicle No / Yes - Unused
    Brake Hold Function Available Availability of brake hold function on vehicle No / Yes Yes: Brake hold function available Unused
    Steering Angle Sensor Available Availability of spiral with sensor cable sub-assembly on vehicle No / Yes Yes: Equipped with spiral with sensor cable sub-assembly -
    Steering Angle Sensor Malfunction Spiral with sensor cable sub-assembly malfunction ON / OFF OFF: Normal -
    Steering Angle Sensor Circuit Open (+B) Spiral with sensor cable sub-assembly +B circuit malfunction ON / OFF OFF: Normal -
    Steering Angle Sensor Abnormal Value Spiral cable with sensor sub-assembly value malfunction ON / OFF OFF: Normal -
    Steering Torque Sensor Malfunction Steering torque sensor malfunction ON / OFF OFF: Normal -
    EPS Current Enable on Assist Power steering assist current value determination Avail / Not Avail Avail: Power assist current valid -
    Auto A/C Availability of air conditioning system on vehicle Without / With

    With: Equipped with air conditioning system

    Without: Not equipped with air conditioning system

    		 Air conditioning information needs to be registered after engine stop and start ECU replacement.
    Cancel Switch (Multi-display) Available Whether the vehicle is equipped with a stop and start system cancel switch No / Yes

    No: A stop and start cancel switch is not available on the touch panel in the console

    Yes: A stop and start cancel switch is available on the touch panel in the console

    		 -
    Eng Start Req (A/C 2) Engine start request from the air conditioning system ON / OFF

    ON: Engine start requested to ensure air conditioning system performance

    OFF: Engine start not requested to ensure air conditioning system performance

    		 -
    Wheel Speed Malfunction Wheel speed sensor malfunction status ON / OFF OFF: Input value from speed sensor is normal ON remains displayed when any input values from the wheel speed sensors are abnormal.
    Battery Type Set battery type Specified / Other

    Specified: Specified battery

    Other: Non-specified battery

    		 -
    Communication Method of Brake Boost Sensor Method of communication with vacuum sensor Not CAN / CAN - -
    Oper Permission (Neutral Switch) Permission of stop and start control based on the neutral position switch conditions NG / OK - -
    Oper Permission (Idling) Permission of stop and start control based on the engine idle conditions NG / OK OK: Engine idling (engine speed below 1250 rpm) without accelerator pedal being depressed -
    Oper Permission (Vehicle Speed) Permission of stop and start control based on the vehicle speed conditions NG / OK OK: Vehicle stopped OK is displayed while vehicle is stopped.
    Stop&Start Precondition Permission of stop and start control with all preconditions met ON / OFF ON: Preconditions for stop and start control have been met

    Condition of permission or prohibition for terms listed below.

    (ECM 1, ECM 2, Battery, IGSW, DTC, A/C, Interval, After Running, Engine Hood Closed, D Door Closed, Cancel Switch, Interval For Starter, Key Operation, Driver Side Buckle SW, Ambient Temperature)

    For details on the preconditions, refer to System Description.
    Stop&Start Precondition 2 Permission of stop and start control with all preconditions met ON / OFF ON: Preconditions for stop and start control have been met

    Condition of permission or prohibition for terms listed below.

    (Idling, Road Surface Gradient, No Shift Operation, Brake Negative Pressure, Steering, Starter Check Complete)
    Oper Permission (ECM 1) Permission of stop and start control by the ECM NG / OK OK: Stop and start control enabled (SFI system is normal) -
    Oper Permission (ECM 2) Permission of stop and start control by SFI system NG / OK OK: Stop and start control enabled (SFI system is normal) This is sent from the ECM through CAN communication
    Oper Permission (IG SW) Permission of stop and start control based on the ignition or starter switch assembly conditions NG / OK OK: Ignition switch ON for 5 seconds -
    Oper Permission (DTC) Permission of stop and start control based on the DTC output conditions NG / OK OK: DTC not output -
    Oper Permission (Brake Negative Pressure) Permission of stop and start control based on the brake booster vacuum conditions NG / OK OK: Brake vacuum is 31.5 kPa (236 mmHg, 9.3 in.Hg) to 56.8 kPa (426 mmHg, 16.8 in.Hg) or more for 1 second or longer -
    Oper Permission (Interval) Permission of stop and start control based on the engine running time conditions NG / OK OK: A certain period of time has elapsed after starter operation -
    Oper Permission (D Door Closed) Permission of stop and start control based on the driver door open/close conditions NG / OK OK: Driver door closed -
    Oper Permission (Engine Hood Closed) Permission of stop and start control based on the engine hood open/close conditions NG / OK OK: Engine hood closed -
    Oper Permission (A/C) Permission of stop and start control based on the air conditioning conditions NG / OK OK: Air conditioning conditions met -
    Oper Permission (Ambient Temperature) Permission of stop and start control based on the air conditioning conditions NG / OK OK: Ambient temperature -5°C (23°F) or higher -
    Oper Permission (After Running) Permission of stop and start control based on the initial trip conditions after the ignition switch is turned to ON NG / OK OK: Vehicle has been driven at 7 km/h (4 mph) or more OK is displayed after the initial trip until the ignition switch is turned off.
    Oper Permission (Neutral SW OFF History) Permission of stop and start control based on the shift operation history NG / OK OK: Neutral position switch OFF record is detected (remains ON until next stop and start system control) -
    Oper Permission (Clutch Upper SW OFF History) Permission of stop and start control based on the clutch pedal operation history NG / OK OK: Clutch pedal depressed -
    Oper Permission (Battery) Permission of stop and start control based on the battery conditions NG / OK OK: Stop and start control permitted based on battery conditions, or Active Test (forced permission) performed -
    Oper Permission (Start Min Volt 1) Permission of stop and start control based on minimum voltage during starting when battery fluid temperature is 0°C (32°F) or less NG / OK OK: Battery temperature is 0°C (32°F) or less and minimum voltage when cranking is equal to the threshold or higher If 2 or more of Start Min Volt 1, 2, 3, or 4 are OK, stop and start control is permitted
    Oper Permission (Start Min Volt 2) Permission of stop and start control based on minimum voltage during starting when battery fluid temperature is more than 0°C (32°F) NG / OK OK: Battery temperature is higher than 0°C (32°F) and minimum voltage when cranking is equal to the threshold or higher If 2 or more of Start Min Volt 1, 2, 3, or 4 are OK, stop and start control is permitted
    Oper Permission (Start Min Volt 3) Permission of stop and start control based on minimum voltage after cranking when battery fluid temperature is 0°C (32°F) or less NG / OK OK: Battery temperature is 0°C (32°F) or less and minimum voltage when starter begins operation is equal to the threshold or higher If 2 or more of Start Min Volt 1, 2, 3, or 4 are OK, stop and start control is permitted
    Oper Permission (Start Min Volt 4) Permission of stop and start control based on minimum voltage after cranking when battery fluid temperature is more than 0°C (32°F) NG / OK OK: Battery temperature is higher than 0°C (32°F) and minimum voltage when starter begins operation is equal to the threshold or higher If 2 or more of Start Min Volt 1, 2, 3, or 4 are OK, stop and start control is permitted
    Oper Permission (Battery Current) Permission of stop and start control based on battery current NG / OK OK: Battery discharge current is -125 A or higher Engine stop and start ECU calculated value
    Oper 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 battery temperature.

    Refer to "Regarding Battery Integrated Current" below for details.*
    Oper 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 ignition start When Prohibit is displayed, stop and start control will be prohibited until the ignition switch is turned off.
    Oper Prohibition (Manual Start) Prohibition of stop and start control based on the manual start conditions Permit / Prohibit

    Prohibit: During manual start


      Conditions for Manual Start:

    • Clutch start switch OFF or vehicle speed signal input

    • Neutral position sensor (neutral position switch) OFF

    • Starter signal OFF

    		 When Prohibit is displayed, the stop and start control will be prohibited until the ignition switch is turned off.
    Oper Permission (Interval For Starter) Permission of stop and start control based on the conditions after engine restart NG / OK OK: 4 minutes or less have elapsed after engine restarted -
    Oper Permission (Cancel Switch) Permission of stop and start control based on the stop and start system cancel switch (electric parking brake switch assembly) operation NG / OK OK: Stop and start control is permitted (stop and start cancel indicator light is not illuminated) -
    Oper Permission (Road Surface Gradient) Permission of stop and start control based on the road grade conditions NG / OK OK: Vehicle stopped on level road (not steep grade) -
    Oper Permission (Driver Side Buckle SW) Permission of stop and start control based on the driver seat belt condition NG / OK OK: The driver side buckle switch fastened -
    Oper Permission (Steering) Permission of stop and start control by the power steering ECU assembly NG / OK OK: EPS system is normal -
    Oper Permission (Key Operation) Permission of stop and start control based on the ignition or starter switch assembly operation NG / OK OK: Ignition or starter switch assembly not operated -
    Oper Permission (Starter Check Complete) Permission of stop and start control based on the starter circuit self-check result NG / OK OK: Stop and start control enabled (starter circuit normal) When the engine stop and start ECU is abnormal, the starter drive circuit is judged to be abnormal, and NG is displayed
    Oper Permission (IPA) Permission of stop and start control by Simple Intelligent Parking Assist System NG / OK - -
    Oper Prohibition (Engine F/C) Prohibition of stop and start control based on the engine fuel-cut prohibition signal Permit / Prohibit Permit: Fuel-cut permitted by SFI system -
    Eng Start Req (Brk Negative Pressure Low) Engine start request due to low brake booster vacuum ON / OFF ON: Brake booster vacuum insufficient while engine stopped by stop and start control

    • OFF is usually displayed

    • ON is displayed when the engine is started due to decreased brake booster vacuum caused by depressing the brake pedal several times
    Eng Start Req (IG Switch) Engine start request due to ignition or starter switch assembly operation ON / OFF ON: Engine started using ignition or starter switch assembly while engine stopped by stop and start control -
    Eng Start Req (ECM) Engine start request from ECM ON / OFF ON: Engine start requested by ECM -
    Eng Start Req (A/C) Engine start request from Air conditioning system ON / OFF ON: Engine start requested by air conditioning system -
    Eng Start Req (Steering) Engine start request by the power steering system ON / OFF ON: Power steering assist current is abnormal -
    Eng Start Req (Detect DTC) Engine start request due to output of DTCs ON / OFF ON: Engine start requested due to output of stop and start system DTCs -
    Eng Start Req (Clutch Pedal) Engine start request by the clutch pedal ON/OFF ON: Clutch pedal is depressed -
    Eng Start Req (Clutch Lower SW) Engine start request by the clutch start switch assembly (for lower) ON/OFF ON: Clutch pedal is fully depressed -
    Eng Start Req (Battery Condition) Engine start request based on battery performance ON / OFF ON: Engine start requested due to low battery voltage while the engine is stopped by stop and start control -
    Eng Start Req (CVT Vehicle Speed) Engine start request based on vehicle speed signal from the CVT system ON / OFF - Unused
    Eng Start Req (ABS Vehicle Speed) Engine start request based on vehicle speed signal from the vehicle stability control system ON / OFF ON: Engine start requested due to speed signal while the engine is stopped by stop and start Engine start request based on the speed sensor signal
    Eng Start Req(Cancel SW) Engine start request by stop and start system cancel switch (electric parking brake switch assembly) ON / OFF ON: Engine start requested due to operation of the stop and start system cancel switch (electric parking brake switch assembly) while the engine is stopped by stop and start control -
    Eng Start Req (IPA) Engine start request from Simple Intelligent Parking Assist System ON / OFF ON: Engine start requested by Simple Intelligent Parking Assist System -
    Eng Start Req(Courtesy SW or Buckle SW) Engine start request by courtesy switch (for driver side) or driver side buckle switch ON / OFF ON: Engine start requested due to operation of the courtesy switch (for driver side) or driver side buckle switch while the engine is stopped by stop and start control -
    ABS Running Operating condition of the vehicle stability control system ON / OFF ON: Vehicle stability control system operating -
    N Position Switch Neutral position switch status OK / NG OK: System normal -
    Alternator Status Generator power generation status Normal / Abnormal Normal: Generator operation normal -
    EEPROM Malfunction in EEPROM Normal / Abnormal Normal: EEPROM normal -
    Dec Sensor Calibration Deceleration sensor zero point uncalibrated Comp / Incomp Comp: Deceleration sensor learning completed -
    Deceleration Sensor Movement Sticking of deceleration sensor Normal / Abnormal Normal: Deceleration sensor not stuck -
    Clutch Stroke Sensor Malfunction Clutch stroke sensor malfunction ON / OFF OFF: Clutch stroke sensor is normal -
    Engine Stall History during S&S (Hood Open) History of engine stall due to the engine hood being opened with shift lever in neutral while the engine is stopped by stop and start control No / Yes No: No history -
    Engine Stall History during S&S (Collision or Battery Voltage Low) History of engine stall due to collision or low battery voltage when stop and start control operating No / Yes No: No history -
    Engine Stall History during Engine Starting (Collision) History of engine stall due to a collision while engine stopped by stop and start control No / Yes No: No history -
    Engine Start Fail History of engine restart failure while engine stopped by stop and start control No / Yes No: No history -
    NE Sensor Circuit Open2 Malfunction in crank position sensor circuit ON / OFF OFF: System is normal ON: No engine speed input at engine start.
    Brk Boost Malfunc 1 Fail-safe operation due to malfunction of vacuum sensor assembly OK / NG OK: System is normal Fail-safe operation due to sticking of the vacuum sensor assembly (change in the sensor value is small when STP signal changes from ON to OFF)
    Brk Boost Malfunc 2 Fail-safe operation due to malfunction in the vacuum sensor assembly OK / NG OK: System is normal Fail-safe operation due to sticking of the vacuum sensor assembly (a change in the sensor value is small, even though the vehicle speed has increased from 0 km/h (0 mph) to 30 km/h (18.6 mph) 30 times)
    N Position Voltage Status Malfunction in the neutral position switch Normal / H i / Low Normal: Neutral position switch voltage normal -
    Num of Current Code Number of currently stored DTCs

    Min.: 0

    Max.: 255

    		 - -
    Number of Oper Prohibition (ECM 1) Number of stop and start control prohibitions when ECM conditions are not met

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (ECM 2) Number of stop and start control prohibitions due to SFI system

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Engine F/C) Number of stop and start control prohibitions due to fuel-cut

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Jump Start) Number of stop and start control prohibitions due to jump start

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Engine Hood Closed) Number of stop and start control prohibitions due to open engine hood

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Possible Clutch Lower SW Abnormality) Number of stop and start control prohibitions due to clutch switch assembly malfunction

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Possible Clutch Upper SW Abnormality) Number of stop and start control prohibitions due to clutch start switch assembly (for upper) malfunction

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Neutral SW OFF History) Number of stop and start control prohibitions due to neutral start switch

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Clutch Upper SW OFF History) Number of stop and start control prohibitions due to clutch start switch assembly (for upper)

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Battery) Number of stop and start control prohibitions due to battery condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Start Min Volt) Number of stop and start control prohibitions due to battery condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Battery Current) Number of stop and start control prohibitions due to battery condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Integrated Current) Number of stop and start control prohibitions due to battery condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (A/C) Number of stop and start control prohibitions due to air conditioning condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Ambient Temperature) Number of stop and start control prohibitions due to ambient temperature condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Brake Negative Pressure) Number of stop and start control prohibitions due to brake negative pressure condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Stop&Start Precondition1) Number of stop and start control prohibitions due to precondition 1

    Min.: 0

    Max.: 4294967295

    		 -

    Condition of permission or prohibition for terms listed below.

    (ECM 1, ECM 2, Battery, IGSW, DTC, A/C, Interval, After Running, Engine Hood Closed, D Door Closed, Cancel Switch, Interval For Starter, Key Operation, Driver Side Buckle SW, Ambient Temperature)

    For details on the preconditions, refer to System Description.
    Number of Oper Prohibition (Stop&Start Precondition2) Number of stop and start control prohibitions due to precondition 2

    Min.: 0

    Max.: 4294967295

    		 -

    Condition of permission or prohibition for terms listed below.

    (Idling, Road Surface Gradient, No Shift Operation, Brake Negative Pressure, Steering, Starter Check Complete)
    Number of Oper Prohibition (DTC) Number of stop and start control prohibitions due to DTC output

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Abnormal Wheel Speed Sensor Inputs) Number of stop and start control prohibitions due to abnormal vehicle speed signal input

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Deceleration Sensor Abnormal) Number of stop and start control prohibitions due to deceleration sensor malfunction

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Interval For Starter) Number of stop and start control prohibitions due to starter fail-safe operation

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Interval) Number of stop and start control prohibitions due to periodic control prohibition after engine stop

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Cancel Switch) Number of stop and start control prohibitions due to stop and start system cancel switch (electric parking brake switch assembly) operation

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (IPA) Number of stop and start control prohibitions due to Simple Intelligent Parking Assist System

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Driver Side Buckle SW) Number of stop and start control prohibitions due to unfastened driver seat belt

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (D Door Closed) Number of stop and start control prohibitions due to open driver door

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (IG SW) Number of stop and start control prohibitions due to ignition or starter switch assembly operation

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (After Running) Number of stop and start control prohibitions based on the initial trip conditions

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Manual Start) Number of stop and start control prohibitions due to manual start condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Manual Start during S&S) Number of stop and start control prohibitions due to manual start condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Idling) Number of stop and start control prohibitions due to idling condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Road Surface Gradient) Number of stop and start control prohibitions due to road surface gradient condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Steering) Number of stop and start control prohibitions due to power steering system condition

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Key Operation) Number of stop and start control prohibitions due to ignition or starter switch assembly operation

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Oper Prohibition (Starter Check Complete) Number of stop and start control prohibitions due to incomplete starter circuit check

    Min.: 0

    Max.: 4294967295

    		 - -
    Number of Eng Start Req (ECM) Number of engine start requests from SFI system

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (Clutch Lower SW) Number of engine start requests from clutch switch assembly

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (Battery Condition) Number of engine start requests due to low battery performance

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (A/C) Number of engine start requests from air conditioning system

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (Brk Negative Pressure Low) Number of engine start requests due to low brake booster vacuum

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (Detect DTC) Number of engine start requests due to DTC output

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (ABS Vehicle Speed) Number of engine start requests due to vehicle stability control system vehicle speed signal input

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (Cancel SW) Number of engine start requests due to stop and start system cancel switch (electric parking brake switch assembly) operation

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (IPA) Number of engine start requests from Simple Intelligent Parking Assist System

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (Courtesy SW or Buckle SW) Number of engine start requests due to driver exiting vehicle

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (IG Switch) Number of engine start requests due to ignition or starter switch assembly operation

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (Steering) Number of engine start requests due to steering operation

    Min.: 0

    Max.: 65535

    		 - -
    Number of Eng Start Req (Wrong Shift Lever Operation) Number of engine start requests due to wrong shift lever operation

    Min.: 0

    Max.: 65535

    		 - -

    • *: Regarding Battery Integrated Current

      In the stop and start system, the engine stop and start ECU switches the system control mode (stop and start control permitted/prohibited) based on the battery condition (charge/discharge condition) to protect the battery and to ensure stable engine restarting performance.

      The battery charge/discharge condition is determined from the integrated current value calculated from the battery sensor signal. The integrated current value is obtained by multiplying the current (Ampere) detected from the battery sensor by the time (seconds), and it is expressed in a unit A-sec.

      Tech Tips

      Example: Integrated current of -3110 A-sec corresponds to a load where current of 10 A flows out from the battery for 311 seconds.

      Using the Data List function of the GTS, the integrated current value can be read by checking the Data List item "Integrated Current". The item "Battery Integrated Current" shows the permission status of stop and start control (ON or OFF) and is judged from the "Integrated Current" value.

      Negative integrated current represents battery discharge, and positive represents battery charge. In other words, the "Integrated Current" value of the Data List item will decrease from the present value when the battery is discharged, and the value will increase when the battery is charged.

      The engine stop and start ECU determines the amount of power available based on the integrated current value, and it prohibits stop and start control if the value is below the threshold, because the battery might not be able to start the engine. The threshold varies according to the battery temperature.


    • Integrated Current Condition 1:

      When "Status of Battery Charge Control" is Charge Control Coordination Mode, Low Temperature Mode or Stop and Start Standalone Mode:

      A001STCE29

        Stop and Start System Operation (for Condition 1)

      • Phase A (previous trip integrated current storage):

        When the ignition switch is turned off, the integrated current value is recorded in the ECU memory. The value is carried over to the next trip.

      • Phase B (stop and start control permitted):

        Stop and start control is permitted to stop the engine until the integrated current reaches -5544 A-sec or less.

      • Phase C (charging):

        When the integrated current has dropped to -5544 A-sec or less, stop and start control is prohibited from stopping the engine until the current reaches -4554 A-sec.

      • Phase D (stop and start control permitted):

        Stop and start control is permitted to stop the engine until the integrated current reaches -5544 A-sec or less.


    • Integrated Current Condition 2:

      When "Status of Battery Charge Control" is Stop and Start Restriction Mode or Temperature High/Low Mode:

      A001V4ME26

        Stop and Start System Operation (for Condition 2)

      • Phase A (previous trip integrated current storage):

        When the ignition switch is turned off, the integrated current value is recorded in the ECU memory. The value is carried over to the next trip.

      • Phase B (stop and start control permitted):

        Stop and start control is permitted to stop the engine until the integrated current reaches -990 A-sec or less.

      • Phase C (charging):

        When the integrated current has dropped to -990 A-sec or less, stop and start control is prohibited from stopping the engine until the current reaches 0 A-sec.

      • Phase D (stop and start control permitted):

        Stop and start control is permitted to stop the engine until the integrated current reaches -990 A-sec or less.

    Tech Tips


    • Performance (internal resistance) of lead-acid batteries used in typical vehicles changes according to the battery temperature. The internal resistance of the battery tends to be higher when the battery temperature is low. Thus, the stop and start system switches the threshold of charging value according to the battery temperature when performing stop and start control.

    • If the battery is deteriorated, the internal resistance has also increased and the stop and start rate becomes lower. (The total of idling time while the vehicle is stopped increases.)

    • When troubleshooting, if the malfunction cannot be identified, the battery might be deteriorated.

  2. ACTIVE TEST

    Tech Tips

    Using the GTS to perform Active Tests allows relays, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Active Test.

    5. Perform the Active Test by referring to the table below.

    Tech Tips

    Even if stop and start control is prohibited due to the condition of any of the systems listed above, performing the Active Tests allows stop and start control to be performed.


    Powertrain > Stop and Start > Active Test
    Tester Display Measurement Item Control Range Diagnostic Note
    Buzzer Buzzer activation ON / OFF -
    Starter Starter activation ON / OFF

    Note


    • Prohibited while the engine is running or engine hood opening

    • Do not perform Active Test for more than 3 seconds

    • Wait 5 seconds before performing Active Test again
    Permit Cond (A/C) When stop by stop and start control is prohibited, prohibition of control based on the air conditioning conditions can be disabled/enabled. ON / OFF -
    Permit Cond (Battery) When stop by stop and start control is prohibited, prohibition of control based on the battery conditions can be disabled/enabled. ON / OFF -
    Permit Cond (Engine) When stop by stop and start control is prohibited, prohibition of control based on the SFI system conditions can be disabled/enabled. ON / OFF -
    Precondition (Control) Stop and start control can be permitted/prohibited based on precondition 1 ON / OFF

    Condition of permission or prohibition for terms listed below.

    (ECM 1, ECM 2, Battery, IGSW, DTC, A/C, Interval, After Running, Engine Hood Closed, D Door Closed, Cancel Switch, Interval For Starter, Key Operation, Driver Side Buckle SW, Ambient Temperature)
    Precondition2 (Control) Stop and start control can be permitted/prohibited based on precondition 2 ON / OFF

    Condition of permission or prohibition for terms listed below.

    (Idling, Road Surface Gradient, No Shift Operation, Brake Negative Pressure, Steering, Starter Check Complete)
    Start Cond (Hood Crtsy) When engine stop by stop and start control is prohibited, prohibition of control based on the engine hood conditions can be disabled/enabled ON / OFF -