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.

    Stop and Start
    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    Eco Warning

    Stop and start indicator light status/

    ON / OFF

    		 OFF: Stop and start indicator light off or on (not blinking) under normal system operation 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.: 12800 rpm

    Reference:

    830 rpm: Idling after engine warmed up

    		 This is sent from the ECM.
    Engine Spd (NE Signal)

    Engine speed signal from ECM via direct line/

    Min.: -25600 rpm, Max.: 25599 rpm

    Reference:

    830 rpm: Idling after engine warmed up

    		 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 the deceleration sensor zero point learning completion

    		 -
    Deceleration Sens Calibration

    Deceleration sensor calibration status/

    Incmpl / Running / Compl / Err1 / Err2 / Err3

    		 Compl: After the deceleration sensor zero point learning completion -
    Gradient of Road Surface

    Degree of road gradient/

    Min.: -10.24 m/s2, Max.: 10.16 m/s2

    -1.4 to 1.4 m/s2: Vehicle is stopped on level surface

    		 -
    Battery Voltage

    Battery voltage/

    Min.: 0.00 V, Max.: 20.00 V

    		 8 to 14 V: Idling -
    Battery Voltage 2

    VB voltage/

    Min.: 0.00 V, Max.: 65.53 V

    		 8 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 ECD system/

    Avail / Not Avi

    		 Avail: Information of the engine type received from the ECM through CAN communication Not Avi 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 opened

    OFF: Driver side door closed

    		 -
    Hood Courtesy Switch

    Hood courtesy switch signal/

    ON / OFF

    ON: Engine hood closed

    OFF: Engine hood opened

    		 -
    Neutral Switch

    Neutral start switch assembly signal/

    ON / OFF

    ON: Shift lever in neutral

    OFF: Shift lever not in neutral

    		 -
    Clutch Upper SW

    Clutch switch assembly signal/

    ON / OFF

    ON: Clutch pedal fully released

    OFF: Clutch pedal depressed

    		 -
    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

    		 -
    TC Terminal

    TC and CG terminals of DLC3/

    ON / OFF

    ON: TC and CG terminals of DLC3 are connected

    OFF: TC and CG terminals of DLC3 are disconnected

    		 -
    Cancel Switch

    Stop and start system cancel switch (ecorun cancel switch assembly) signal/

    ON / OFF

    ON: Stop and start system cancel switch (ecorun cancel switch assembly) pressed

    OFF: Stop and start system cancel switch (ecorun cancel switch assembly) not pressed

    		 -
    IG Switch

    Ignition or starter switch assembly*1 or push start switch assembly*2 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*1 or push start switch*2 operation/

    ON / OFF

    ON: Engine start by ignition or starter switch assembly*1 or push start switch*2 operation

    OFF: Except engine start by ignition or starter switch assembly*1 or push start switch*2 operation

    		 Indicates starter operation by operation of the ignition or starter switch assembly*1 or push start switch*2
    Stop Light SW (ECM)

    Stop light switch assembly signal from ECM/

    ON / OFF

    ON: Brake pedal depressed

    OFF: Brake pedal released

    		 This is sent from the ECM.
    Stop Light SW (ABS/VSC)

    Stop light switch assembly signal from brake system/

    ON / OFF

    ON: Brake pedal depressed

    OFF: Brake pedal released

    		 This is sent from the skid control ECU (brake actuator assembly).
    Fuel Heater Signal (ECD)

    Combustion type power heater signal/

    ON / OFF

    ON: Heater switch assembly on

    OFF: Heater switch assembly off

    		 w/ Combustion Type Power Heater System
    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 - - Unused
    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*1 or push start switch*2 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

    		 - -
    Vehicle Spd 1 (ABS/VSC)

    Vehicle speed signal from skid control ECU (brake actuator assembly) via CAN communication/

    Min.: 0.00 km/h (0 mph), Max.: 327.67 km/h (203.6 mph)

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

    Steering wheel steering angle amount/

    Min.: -49152.0 deg, Max.: 49150.5 deg

    		 Actual steering angle

    Turned right: Negative value

    Turned left: Positive value
    Steering Wheel Torque

    Steering wheel torque/

    Min.: -327.68 Nm, Max.: 327.67 Nm

    		 Actual steering torque

    Turned right: Negative value

    Turned left: Positive value
    Battery Current

    Battery current/

    Min.: -125.00 A, Max.: 124.99 A

    		 - -
    Brake Boost Pressure

    Brake booster pressure (absolute pressure)/

    Min.: -640 kPa(abs) (-4800 mmHg, -188 in.Hg), Max.: 112 kPa(abs) (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(abs) (-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 an error occurs in communication with the ECM.
    Ambient Temp Sensor

    Ambient temperature/

    Min.: -80.0°C (-112.0°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: Before engine started

    • Run: Engine running

    • Stopreq: Engine stop requested

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

    • Restart: Engine restarted

    		 -
    Idling Stop Rate

    Rate of the idling stop time to the entire ignition switch ON time/

    Min.: 0%, Max.: 100%

    		 - -
    Total Idling Stop Rate

    Rate of idling stop time to the entire ignition switch ON time/

    Min.: 0%, Max.: 100%

    		 - -
    Integrated Current

    Battery integrated current/

    Min.: -268434.45 A-sec, Max.: 268435.45 A-sec

    		 Differs according to the vehicle condition (charge/discharge conditions) Refer to "Regarding Battery Integrated Current" below for details.*3
    Cranking Time

    Engine cranking time (in current trip) (When minimum voltage is detected at engine start)/

    Min.: 0.00 ms, Max.: 134215.00 ms

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

    Minimum battery voltage while engine cranking (in current trip)/

    Min.: 0.00 V, Max.: 327.67 V

    		 6 to 11 V Lowest battery voltage measured in a 5 second period after the starter starts operating.
    Min Volt(After Cranking)

    Minimum battery voltage just after engine cranking/

    Min.: 0.00 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/

    Change 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 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. Error is detected in the feedback circuit in the backup boost converter

        2. Too high or low output voltage.
    BBC Check Result

    Backup boost converter check result/

    Normal / Abnormal

    		 Normal: backup boost converter normal Abnormal is displayed if excessive electrical load is applied to the converter at engine start.
    Atmosphere Pressure

    Atmospheric pressure (calculated value)/

    Min.: 0 kPa(abs) (0 kgf/cm2, 0 psi), Max.: 255 kPa(abs) (2.6 kgf/cm2, 37 psi)

    Approx. 100 kPa (abs) (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 is not activated -
    Accelerator Position

    Accelerator pedal position/

    Min.: 0.0%, Max.: 127.5%

    		 Actual accelerator pedal position -
    Engine OFF Request

    Engine stop request/

    ON / OFF

    ON: Engine stopped due to 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) - - Unused
    Engine Reverse Rev.

    Engine reverse revolution status/

    ON / OFF

    		 - -
    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

    		 - -
    Permit Idling Stop

    Engine stop standby/

    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.
    Steering Angle Sensor Malfunction

    Steering angle sensor status/

    ON / OFF

    		 OFF: Steering angle sensor normal -
    Steering Angle Sensor Circuit Open (+B)

    Whether there is an open to +B in the steering angle sensor circuit/

    ON / OFF

    		 OFF: Steering angle sensor +B circuit is normal -
    Steering Angle Sensor Abnormal Value

    Whether there is an abnormality in the value continuously input from the steering angle sensor/

    ON / OFF

    		 OFF: Normal -
    Steering Torque Sensor Malfunction

    Steering torque sensor status/

    ON / OFF

    		 OFF: Steering torque sensor normal -
    EPS Current Enable on Assist

    Whether the power steering assist current value is available/

    Avail / Not Avail

    		 - Avail is also displayed when the power steering system is not operating.
    Auto A/C

    Availability of auto air conditioning system on vehicle/

    Without / With

    With: Equipped with auto air conditioning system

    Without: Not equipped without auto air conditioning system

    		 Air conditioning information needs to be registered after engine stop and start ECU replacement.
    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.
    E/G ECU Region Mismatch

    ECM region mismatch status/

    ON / OFF

    		 OFF: ECM destination information is matched. ON remains displayed when the ECM for regions destinations without the stop and start system settings is detected.
    Oper Permission (Neutral Switch)

    Permission of stop and start control based on the neutral position sensor (neutral position switch) conditions/

    NG / OK

    		 OK: Shift lever in neutral -
    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 is 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.

    (ECM1, ECM2, battery, ABS/VSC2, 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.

    (Brake negative pressure, starter check complete, idling, steering, neutral SW OFF history, clutch upper SW OFF history)
    Oper Permission (ECM 1)

    Permission of stop and start control by the ECM/

    NG / OK

    		 OK: Stop and start control is enabled (ECD system is normal) -
    Oper Permission (ECM 2)

    Permission of stop and start control by ECD system/

    NG / OK

    		 OK: Stop and start control is enabled (ECD 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*1 or push start switch*2 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 is not output -
    Oper Permission (Brake Negative Pressure)

    Permission of stop and start control based on the brake booster vacuum conditions/

    NG / OK

    		 OK: Brake booster vacuum 42.5 kPa (319 mmHg, 12.6 in.Hg) or higher at horizontal road (threshold varies by road gradient) -
    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 are 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 sensor (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 is permitted based on battery conditions, or Active Test (forced permission) is performed -
    Oper Permission (Start Min Volt 1)

    Permission of stop and start control based on the battery conditions/

    NG / OK

    		 OK: Battery temperature is 0°C (32°F) or less and the minimum voltage at starter ON is the threshold value 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 the battery conditions/

    NG / OK

    		 OK: Battery temperature is 0°C (32°F) or higher and the minimum voltage at starter ON is the threshold value 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 the battery conditions/

    NG / OK

    		 OK: Battery temperature is 0°C (32°F) or less and the minimum voltage right after engine cranking is the threshold value 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 the battery conditions/

    NG / OK

    		 OK: Battery temperature is 0°C (32°F) or higher and the minimum voltage right after engine cranking is the threshold value 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 the battery conditions/

    NG / OK

    		 OK: Battery discharge current is -125 A or less 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 more than specified

    The status depend on the value of "Integrated Current", and OK/NG threshold differs according to the battery temperature.

    Refer to "Regarding Battery Integrated Current" below for details.*3
    Oper Prohibition (Jump Start)

    Prohibition of stop and start control based on the jump start conditions/

    Permit / Prohibit

    		 Prohibit: Engine started by ignition switch operation with the engine hood open When Prohibit is displayed, the stop and start control will be prohibited until the ignition switch is turned off.
    Oper Prohibition (Manual Start)

    Permission of stop and start control based on the manual start conditions/

    Permit / Prohibit

    		 Prohibit: During manual start

    When Prohibit is displayed, the stop and start control will be prohibited until the ignition switch is turned off. Conditions for Manual Start:


    • Clutch start switch OFF or vehicle speed signal input

    • Neutral position sensor (neutral position switch) OFF

    • Starter signal OFF
    Oper Permission (Interval For Starter)

    Permission of stop and start control based on the conditions after engine restart/

    NG / OK

    		 OK: A maximum of 4 minutes have elapsed after engine restarted -
    Oper Permission (Cancel Switch)

    Permission of stop and start control based on the stop and start system cancel switch (ecorun cancel switch assembly) operation/

    NG / OK

    		 OK: Stop and start control is permitted (the stop and start cancel indicator light is not illuminated) -
    Oper Permission (ABS/VSC 2)

    Permission of stop and start control by the vehicle stability control system/

    NG / OK

    		 OK: Brake control not operating -
    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 is fastened -
    Oper Permission (Steering)

    Permission of stop and start control by the power steering ECU assembly/

    NG / OK

    		 OK: EPS system is normal operated -
    Oper Permission (Key Operation )

    Permission of stop and start control based on the ignition or starter switch assembly*1 or push start switch*2 operation/

    NG / OK

    		 OK: Ignition or starter switch assembly*1 or push start switch*2 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 Prohibition (Engine F/C)

    Permission of stop and start control based on the engine fuel-cut prohibition signal/

    Permit / Prohibit

    		 Prohibit: Fuel-cut not performed on ECD 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*1 or push start switch*2 operation/

    ON / OFF

    		 ON: Engine started using ignition or starter switch assembly*1 or push start switch assembly*2 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 (Engine Hood Open)

    Engine start request due to opening of engine hood/

    ON / OFF

    		 ON: Engine hood open (with shift lever in neutral) while the engine is stopped by stop and start control -
    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) - - Unused
    Eng Start Req (ABS Vehicle Speed)

    Engine start request based on vehicle speed signal from the brake 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 (ecorun cancel switch assembly)/

    ON / OFF

    		 ON: Engine start requested due to stop and start system cancel switch (ecorun cancel switch assembly) operation while the engine is stopped by stop and start control -
    Eng Start Req (Courtesy SW or Buckle SW)

    Engine start request by courtesy switch (driver side) or driver side buckle switch/

    ON / OFF

    		 ON: Engine start requested due to courtesy switch (for driver side) or driver side buckle switch operation while the engine is stopped by stop and start control -
    ABS Running

    Operating condition of the vehicle stability control system/

    ON / OFF

    		 ON: Anti-lock brake control operating -
    N Position Switch

    Neutral position sensor (neutral position switch) status/

    OK / NG

    		 OK: System normal -
    Alternator Status

    Alternator power generation status/

    Normal / Abnormal

    		 Normal: Alternator operation normal -
    EEPROM

    Error 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 the deceleration sensor/

    Normal / Abnormal

    		 Normal: Deceleration sensor not stuck -
    Engine Stall History during S&S (Hood Open)

    History of engine stall caused by depressing the clutch pedal with the engine hood open while the engine is stopped by stop and start control (shift lever in neutral)/

    No / Yes

    		 No: No history -
    Engine Stall History during S&S (Collision or Battery Voltage Low)

    History of engine stall due to a collision or low battery voltage when the stop and start control is operating/

    No / Yes

    		 No: No history -
    Engine Stall History during Engine Starting (Collision)

    History of engine stall due to a collision while the engine is stopped by stop and start control/

    No / Yes

    		 No: No history -
    Engine Start Fail

    History of engine restart failure by stop and start control/

    No / Yes

    		 No: No history -
    NE Sensor Circuit Open2

    Malfunction in the 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 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 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 sensor (neutral position switch)/

    Normal / Hi / Low

    		 Normal: Neutral position sensor (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.: 2147483647

    		 - -
    Number of Oper Prohibition (ECM 2)

    Number of stop and start control prohibitions due to ECD system/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Engine F/C)

    Number of stop and start control prohibitions due to fuel-cut/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Jump Start)

    Number of stop and start control prohibitions due to jump start/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Engine Hood Closed)

    Number of stop and start control prohibitions due to open engine hood/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Possible Clutch Lower SW Abnormality)

    Number of stop and start control prohibitions due to clutch start switch assembly (for lower) malfunction/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Possible Clutch Upper SW Abnormality)

    Number of stop and start control prohibitions due to clutch switch assembly (for upper) malfunction/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Neutral SW OFF History)

    Number of stop and start control prohibitions due to neutral start switch/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Clutch Upper SW OFF History)

    Number of stop and start control prohibitions due to clutch switch assembly (for upper)/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Battery)

    Number of stop and start control prohibitions due to battery condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Start Min Volt)

    Number of stop and start control prohibitions due to battery condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Battery Current)

    Number of stop and start control prohibitions due to battery condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Integrated Current)

    Number of stop and start control prohibitions due to battery condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (A/C)

    Number of stop and start control prohibitions due to air conditioning condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Ambient Temperature)

    Number of stop and start control prohibitions due to ambient temperature condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (ABS/VSC 2)

    Number of stop and start control prohibitions due to vehicle stability control system condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (ABS Running)

    Number of stop and start control prohibitions due to vehicle stability control system operation/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Brake Negative Pressure)

    Number of stop and start control prohibitions due to brake negative pressure condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Stop&Start Precondition1)

    Number of stop and start control prohibitions due to precondition 1/

    Min.: 0, Max.: 2147483647

    		 -

    Condition of permission or prohibition for terms listed below.

    (ECM1, ECM2, battery, ABS/VSC2, 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.: 2147483647

    		 -

    Condition of permission or prohibition for terms listed below.

    (Brake negative pressure, starter check complete, idling, steering, neutral SW OFF history, clutch upper SW OFF history)
    Number of Oper Prohibition (DTC)

    Number of stop and start control prohibitions due to DTC output/

    Min.: 0, Max.: 2147483647

    		 - -
    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.: 2147483647

    		 - -
    Number of Oper Prohibition (Deceleration Sensor Abnormal)

    Number of stop and start control prohibitions due to deceleration sensor malfunction/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Interval For Starter)

    Number of stop and start control prohibitions due to starter fail-safe operation/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Interval)

    Number of stop and start control prohibitions due to periodic control prohibition after engine stop/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Cancel Switch)

    Number of stop and start control prohibitions due to stop and start system cancel switch (ecorun cancel switch assembly) operation/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Driver Side Buckle SW)

    Number of stop and start control prohibitions due to unfastened driver seat belt/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (D Door Closed)

    Number of stop and start control prohibitions due to open driver door/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (IG SW)

    Number of stop and start control prohibitions due to Ignition or starter switch assembly*1 or push start switch*2 operation/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (After Running)

    Number of stop and start control prohibitions based on the initial trip conditions/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Manual Start)

    Number of stop and start control prohibitions due to manual start condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Manual Start during S&S)

    Number of stop and start control prohibitions due to manual start condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Idling)

    Number of stop and start control prohibitions due to idling condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Road Surface Gradient)

    Number of stop and start control prohibitions due to road surface gradient condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Steering)

    Number of stop and start control prohibitions due to power steering system condition/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Key Operation )

    Number of stop and start control prohibitions due to ignition or starter switch assembly*1 or push start switch*2 operation/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Oper Prohibition (Starter Check Complete)

    Number of stop and start control prohibitions due to incomplete starter circuit check/

    Min.: 0, Max.: 2147483647

    		 - -
    Number of Eng Start Req (ECM)

    Number of engine start requests from ECD system/

    Min.: 0, Max.: 65535

    		 - -
    Number of Eng Start Req (Engine Hood Open)

    Number of engine start requests due to opening of engine hood while engine is stopped by stop and start control/

    Min.: 0, Max.: 65535

    		 - -
    Number of Eng Start Req (Clutch Lower SW)

    Number of engine start requests from clutch start switch assembly (for lower)/

    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 (CVT Vehicle Speed) - - Unused
    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 (ecorun cancel switch assembly) operation/

    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*1 or push start switch*2 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 undetermined shift position/

    Min.: 0, Max.: 2147483647

    		 - -

    • *1: w/o Entry and Start System

    • *2: w/ Entry and Start System

    *3: Regarding Battery Integrated Current

    In the Stop and Start system, the engine stop and start ECU switches the system control mode (Stop and Start system 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 current sensor signal. The integrated current value is obtained by multiplying the current (Ampere) detected from the battery current sensor by the time (seconds), and it is expressed in a unit A-sec.

    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 system control 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 power charge based on the integrated current value, and it prohibits Stop and Start system 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 and battery charge condition.

    Furthermore, the integrated current value is recorded inside the engine stop and start ECU memory even if the ignition switch is off, and when the ignition switch is next turned to ON, the value is calculated from the value recorded when the ignition switch was turned off.

    Integrated Current Condition 1:

    The battery charge is sufficient and the battery temperature is -1°C (30.2°F) or higher and below 70°C (158°F):

    A002OSLE21

      Stop and Start System Operation (for Condition 1)

    • Phase A:

      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:

      After engine start by ignition switch operation, Stop and Start system control is prohibited until the integrated current reaches 0 A-sec once. (The battery is being charged during this phase.)

    • Phase C:

      Stop and Start system control is permitted until the integrated current decreases to -6451 A-sec.

    • Phase D:

      After the integrated current value decreases below -6451 A-sec, Stop and Start system control is prohibited until the value increases to -5299 A-sec or more again. (The battery is being charged during this phase.)

    • Phase E:

      Stop and Start system control is permitted. After this, system control is permitted until the integrated current decreases below -6451 A-sec.

    Integrated Current Condition 2:

    The battery charge is sufficient or the battery temperature is -1°C (30.2°F) or higher and below 70°C (158°F):

    A002M1IE17

      Stop and Start System Operation (for Condition 2)

    • Phase A:

      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:

      After engine start by ignition switch operation, Stop and Start system control is prohibited until the integrated current reaches 0 A-sec once. (The battery is being charged during this phase.)

    • Phase C:

      Stop and Start system control is permitted until the integrated current decreases to -1152 A-sec.

    • Phase D:

      After the integrated current value decreases below -1152 A-sec, Stop and Start system control is prohibited until the value increases to 0 A-sec or more again. (The battery is being charged during this phase.)

    • Phase E:

      Stop and Start system control is permitted. If the battery temperature becomes 11°C (51.8°F) or higher and the battery charge condition meets a predetermined condition, Stop and Start system operation switches to Integrated Current Condition 1 above.

    Tech Tips


    • The low battery temperature condition is detected when the battery temperature is less than 10°C (50°F). When the battery temperature becomes 11°C (51.8°F) or higher, the low battery temperature condition is cleared.

    • 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 for determining the power charge 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.

      Stop and Start System
      Tester Display Test Part Control Range Diagnostic Note
      Buzzer Buzzer activation ON / OFF -
      Permit Cond (A/C) When engine 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 engine 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 engine stop by stop and start control is prohibited, prohibition of control based on the ECD 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. (ECM1, ECM2, idling, battery, ABS/VSC2, IGSW, DTC, A/C, interval, after running, engine hood closed, D door closed, cancel switch, steering, 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. (Brake negative pressure, 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 -