STOP AND START SYSTEM DATA LIST / ACTIVE TEST

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.

Warm up the engine.
Turn the engine switch off.
Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Stop and Start / Data List.
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.: 12800 rpm	750 to 850 rpm: When idling after warm-up, shift lever in N 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	750 to 850 rpm: When idling after warm-up, shift lever in N 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	-1.4 to 1.4 m/s²: Vehicle stopped on level surface	-
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)	-
Oper Permission (AT/CVT)	Permission of stop and start control by automatic transmission system	NG / OK	OK: Automatic transmission system normal and automatic transmission fluid temperature 25°C (77°F) or higher	This is sent from the ECM via CAN communication.
Oper Permission (AT/CVT 2)	Permission of stop and start control by automatic transmission system	NG / OK	OK: Oil pump assembly with solenoid normal	This is sent from the ECM via CAN communication.
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	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 opened	-
Neutral Switch	Park/neutral position assembly status	ON / OFF	ON: Shift lever in P or N OFF: Shift lever not in P or N	-
Starter	Starter status	ON/OFF	ON: Cranking OFF: Not cranking	-
Pinion Gear	Starter pinion status	ON / OFF	ON: Starter pinion operated OFF: Starter pinion not operated	-
Starter Motor	Starter motor 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 connected OFF: TC and CG terminals of DLC3 disconnected	-
Drive Mode Status	Drive mode status	ON / OFF	ON: Drive mode is SPORT OFF: Drive mode is ECO or NORMAL	-
Snow Switch	Snow mode status	ON / OFF	ON: Snow mode on OFF: Snow mode off	-
Cancel Switch	Stop and start system cancel switch signal	ON/OFF	ON: Stop and start system cancel switch pressed OFF: Stop and start system cancel switch not pressed	-
IG Switch	Push start switch assembly signal	ON / OFF	ON: Engine switch on (IG)	-
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 push start switch assembly operation	ON / OFF	ON: Engine start by push start switch assembly operation OFF: Except engine start by push start switch assembly operation	Indicates starter operation by operation of the push start switch assembly
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 vehicle stability control system	ON / OFF	ON: Brake pedal depressed OFF: Brake pedal released	This is sent from the skid control ECU (brake actuator 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.
Brake Press Hold Req	Brake fluid pressure holding request during stop and start control	ON / OFF	ON: Shift lever in D or P and engine stopped by stop and start control OFF: Shift lever in D or P and engine not stopped by stop and start control	ON is displayed when a brake fluid pressure holding request is sent during stop and start control or the engine is stopped by stop and start control with the shift lever in D or P.
Brake Pressure Hold Request Status	Brake fluid pressure holding status during stop and start control	Normal Release / Quick Release / Hold / Immediate Release	-	-
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 push start 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	-	-
Total Number of Engine Starts	The number of times the engine starts	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 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 A Max.: 124.99 A	-	-
Brake Boost Pressure	Brake booster pressure (absolute pressure)	Min.: -640 kPa (-4800 mmHg, -189 in.Hg) Max.: 112 kPa (840 mmHg, 33.0 in.Hg)	Approx. 100 kPa (750 mmHg, 29.5 in.Hg): Engine switch on (IG), brake pedal depressed several times (differs according to atmospheric pressure)	-
Brake Negative Pressure	Brake booster vacuum (negative pressure)	Min.: -640 kPa (-4800 mmHg, -189 in.Hg) Max.: 639.98 kPa (4800 mmHg, 188 in.Hg)	Approx. 0 kPa (0 mmHg, 0 in.Hg): Engine switch on (IG), 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 / A/C Prioritized	-	-
Idling Stop Rate	Rate of idling stop time to entire engine switch on (IG) time	Min.: 0% Max.: 100%	-	-
Total Idling Stop Rate	Rate of total idling stop time	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" below for details.*
Cranking Time	Engine cranking time (in current trip) (When minimum voltage is detected at engine start)	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 measure after the starter starts operating.
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
Master Cylinder Pressure	Brake fluid pressure	Min.: 0 MPa Max.: 327.67 MPa	0 to 5 MPa (when normal pedal effort is applied)	-
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 engine switch is turned on (IG). Overload: Overcurrent is detected. Overvol: When the engine switch is on (IG): Overvoltage is detected at the control IC power source in the backup boost converter Overheating is detected at the control IC power source in the backup boost converter When boosting: Malfunction is detected in the feedback circuit in the backup boost converter Too high or low output voltage.
State of External BBC	External backup boost converter status	Cycle Err / Overvol / Overload / Normal / Low Vol / Duty Err / Low Temp	-	-
External BBC Overcurrent History	External backup boost converter overcurrent history	No / Yes	-	-
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): Engine switch on (IG) (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	-
Shift Position	Shift lever position	Unset / B / D / R / N / P	Shift lever 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.
Wrong Operation (Start)	Incorrect operation for engine start	ON / OFF	-	Unused
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.
ACC Operation State	Dynamic radar cruise control system operation state	ON / OFF	ON: Operating OFF: Not operating	-
4WD Available	Whether the vehicle is equipped with a 4 wheel drive control ECU	No / Yes	No: Not equipped Yes: Equipped	-
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 left up seat system on vehicle	No / Yes	-	Unused
External BBC Available	Availability of eco-run vehicle converter assembly (external backup boost converter) on vehicle	No / Yes	No: Eco-run vehicle converter assembly (external backup boost converter) not equipped Yes: Eco-run vehicle converter assembly (external backup boost converter) equipped	-
ACC Available	Availability of dynamic radar cruise control system on vehicle	No / Yes	No: Dynamic radar cruise control system not equipped Yes: Dynamic radar cruise control system equipped	-
Brake Hold Function Available	Availability of brake hold function on vehicle	No / Yes	-	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 with sensor cable sub-assembly value malfunction	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 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.
Slip History	Slip history existence	Without / With	-	-
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 assembly	Not CAN / CAN	Not CAN: Vacuum sensor signal not received via CAN communication	CAN: Vacuum sensor signal received via CAN communication
Communication Method of Brake Boost Sensor	Method of communication with vacuum sensor assembly	Not CAN / CAN	-	Unused
Oil Pump Relay	Oil pump motor relay inside ECU status	ON / OFF	-	Unused
Electromagnetic Oil Pump Drive Request	Oil pump assembly with solenoid drive request status	ON / OFF	ON: Drive requested OFF: Drive not requested	-
Electromagnetic Oil Pump Preliminarily Check Request	Request to perform the preliminary check before operating when the oil pump assembly with solenoid receives a drive request	ON / OFF	-	This item displays ON when a preliminary check is requested
Heater Core Water Pump Status	Heater accessory assembly (heater water pump assembly) status	ON / OFF	ON: Heater accessory assembly (heater water pump assembly) operating OFF: Heater accessory assembly (heater water pump assembly) stopped	-
Oper Permission (Idling Stop Performance)	Status of permission to operate stop and start control 2 or more times during a single stop	NG / OK	OK: Permitted NG: Not permitted	-
Oper Permission (Idling Stop Performance Waiting Time)	Status of permission to operate stop and start control 2 or more times during a single stop based on waiting time	NG / OK	OK: Permitted NG: Not permitted	-
Oper Permission (Shift D position)	Permission of stop and start control based on shift lever position (D or P)	NG / OK	OK: Vehicle being driven with shift lever in D	-
Oper Permission (Neutral Switch)	Permission of stop and start control based on the park/neutral position switch assembly 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, IG SW, DTC, A/C, Interval, After Running, Engine Hood Closed, D Door Closed, Cancel Switch, AT/CVT, AT/CVT 2, 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, Oil pump Assembly with Solenoid, Starter Check Complete)
Oper Permission(Master Cylinder Pressure)	Permission of stop and start control based on master cylinder pressure	NG / OK	OK: Brake pedal depressed while vehicle stopped	-
Oper Permission (ECM 1)	Permission of stop and start control by the ECM	NG / OK	OK: Stop and start control enabled (SFI system and automatic transmission 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 push start switch assembly conditions	NG / OK	OK: Engine switch on (IG) 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 (Electromagnetic Oil Pump)	Oil pump assembly with solenoid preliminary check status	NG / OK	OK: Check completed
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 (ABS/VSC)	Permission of stop and start control by vehicle stability control system	NG / OK	OK: Stop and start control permitted based on brake system normal condition, or Active Test (forced permission) performed	-
Oper Permission (No Shift Operation)	Permission of stop and start control based on shift lever operation condition	NG / OK	OK: Shift lever not moved for 1 second or more	-
Oper Permission (After Running)	Permission of stop and start control based on the initial trip conditions after the engine switch is turned on (IG)	NG / OK	OK: Vehicle has been driven at 7 km/h (4 mph) or more	OK is displayed after the initial trip until the engine switch is turned off.
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 the battery conditions	NG / OK	OK: Battery temperature is 0°C (32°F) or lower and minimum voltage when cranking is equal to or above threshold	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 higher than 0°C (32°F) and minimum voltage when cranking is equal to or above threshold	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 lower and minimum voltage when starter begins operation is equal to or above threshold	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 higher than 0°C (32°F) and minimum voltage when starter begins operation is equal to or above threshold	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 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 more than specified	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 engine switch turned on (START)	When Prohibit is displayed, stop and start control will be prohibited until the engine 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 (integration control and panel sub-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 operated	-
Oper Permission (4WD and Rear Differential Lock)	Permission of stop and start control by the AWD and Rear Differential Lock	NG / OK	OK: AWD and Rear Differential Lock is normal operated	Unused
Oper Prohibition (Shift Position Uncertain)	Prohibition of stop and start control based on shift lever position	Permit / Prohibit	Permit: Shift lever position determined	-
Oper Permission (Key Operation)	Permission of stop and start control based on the push start switch assembly operation	NG / OK	OK: Push start 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 (Brake Master Pressure 0 Point)	Permission of stop and start control due to completion of brake master cylinder pressure zero point calibration	NG / OK	OK: Brake master cylinder pressure zero point calibration completed normally	-
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	-
Oper Permission (Air Suspension)	Prohibition of stop and start control based on air suspension system	NG / OK	-	Unused
Oper Permission (ACC)	Prohibition of stop and start control based on dynamic radar cruise control system	NG / OK	-
Eng Start Req (Air Suspension/Welcab)	Engine start request based on air suspension system and side left up seat system	ON / OFF	-	Unused
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 push start switch assembly operation	ON / OFF	ON: Engine started using push start switch assembly while engine stopped by stop and start control	-
Eng Start Req (ABS/VSC)	Engine start request from vehicle stability control system	ON / OFF	ON: Engine start requested by skid control ECU (brake actuator assembly)	-
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 (Accelerator)	Engine start request due to accelerator pedal operation	ON / OFF	ON: Engine start requested due to accelerator pedal being depressed	-
Eng Start Req (Brake Release)	Engine start request due to brake pedal operation	ON / OFF	ON: Engine start requested due to brake pedal being released	-
Eng Start Req (Shift Lever)	Engine start request due to shift lever operation	ON / OFF	ON: Engine start requested due to operation of shift lever	-
Eng Start Req (Shift P Position and Brake)	Engine start request when the brake pedal is depressed with the shift lever in P while the engine is stopped due to stop and start control	ON / OFF	ON: With the shift lever in P and the engine stopped due to stop and start control, the brake pedal is temporarily released and then depressed again	-
Eng Start Req (Steering)	Engine start request by the power steering system	ON / OFF	ON: Power steering assist current is abnormal
Eng Start Req (AT/CVT)	Engine start request from automatic transmission system	ON / OFF	ON: Engine start requested by automatic transmission system	-
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(Shift Uncert)	Engine start request due to uncertain shift lever position	ON / OFF	ON: Engine start requested due to uncertain shift lever position while engine is stopped by stop and start control	-
Eng Start Req (Engine Hood Open)	Engine start request due to opening of engine hood	ON / OFF	ON: Engine start requested due to engine hood being opened 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 (ACC)	Engine start request based on dynamic radar cruise control system	ON / OFF	ON: Engine start requested due to distance to vehicle in front increasing while vehicle stopped by full-speed following function operation and engine stopped by stop and start control	Unused
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 (integration control and panel sub-assembly)	ON / OFF	ON: Engine start requested due to operation of the stop and start system cancel switch (integration control and panel sub-assembly) while the engine is stopped by stop and start control	-
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	-
Eng Start Req (4WD and Rear Differential Lock)	Engine start request by AWD and rear differential lock	ON / OFF	ON: Engine start requested due to AWD and rear differential lock while the engine is stopped by stop and start control	Unused
ABS Running	Operating condition of the vehicle stability control system	ON / OFF	ON: Vehicle stability control system operating	-
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	-
Neutral Switch Stuck ON	Neutral switch stuck on malfunction	ON / OFF	OFF: System 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 D or P 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.
Neutral Switch Stuck OFF	Neutral switch stuck off malfunction	ON / OFF	OFF: System is normal	-
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)
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 SFI 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 (AT/CVT 1)	Number of stop and start control prohibitions due to automatic transmission system condition	Min.: 0 Max.: 2147483647	-	-
Number of Oper Prohibition (AT/CVT 2)	Number of stop and start control prohibitions due to automatic transmission system condition	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 1)	Number of stop and start control prohibitions due to vehicle stability control system condition	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. (ECM 1, ECM 2, Battery, IG SW, DTC, A/C, Interval, After Running, Engine Hood Closed, D Door Closed, Cancel Switch, AT/CVT, AT/CVT 2, 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. (Idling, Road Surface Gradient, No Shift Operation, Brake Negative Pressure, Steering, Oil pump Assembly with Solenoid, Starter Check Complete)
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 (integration control and panel sub-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 push start switch assembly 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 (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 (No Shift Operation)	Number of stop and start control prohibitions based on shift lever position condition	Min.: 0 Max.: 2147483647	-	-
Number of Oper Prohibition (Key Operation)	Number of stop and start control prohibitions due to push start switch assembly 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 Oper Prohibition (Brake Master Pressure 0 Pt Calib Incomp)	Number of stop and start control prohibitions due to incomplete brake master cylinder pressure zero point calibration	Min.: 0 Max.: 2147483647	-	-
Number of Oper Prohibition (Electromagnetic Oil Pump)	Number of times stop and start control was prohibited due to the oil pump assembly with solenoid before stop and start control was performed	Min.: 0 Max.: 2147483647	-	-
Number of Oper Prohibition (Air Suspension)	Number of stop and start control prohibitions due to air suspension system condition	Min.: 0 Max.: 2147483647	-	Unused
Number of Oper Prohibition (ACC)	Number of stop and start control prohibitions due to dynamic radar cruise control system condition	Min.: 0 Max.: 2147483647	-	-
Number of Oper Prohibition (4WD and Rear Differential Lock)	Number of stop and start control prohibitions due to AWD and rear differential lock	Min.: 0 Max.: 65535	-	Unused
Number of Eng Start Req (ECM)	Number of engine start requests from SFI 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 (AT/CVT)	Number of engine start requests from automatic transmission system	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 (ABS/VSC)	Number of engine start requests from vehicle stability control 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 (Shift P Position and Brake)	Number of times stop and start control was prohibited and the engine started due to brake operation while the shift lever was in P and stop and start control was being performed	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)	Number of engine start requests due to CVT vehicle speed signal input	Min.: 0 Max.: 65535	-	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 (integration control and panel sub-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 push start switch assembly operation	Min.: 0 Max.: 65535	-	-
Number of Eng Start Req (Accelerator)	Number of engine start requests due to accelerator pedal 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 (Shift Uncert)	Number of engine start requests due to uncertain shift lever position	Min.: 0 Max.: 65535	-	-
Number of Eng Start Req (Air Suspension)	Number of engine start requests from air suspension system	Min.: 0 Max.: 65535	-	-
Number of Eng Start Req (ACC)	Number of engine start requests from dynamic radar cruise control system	Min.: 0 Max.: 65535	-	-
Number of Eng Start Req (4WD and Rear Differential Lock)	Number of engine start requests due to AWD and rear differential lock	Min.: 0 Max.: 65535	-	Unused

*: 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 state sensor assembly signal. The integrated current value is obtained by multiplying the current (Ampere) detected from the battery state sensor assembly 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.

Furthermore, the integrated current value is recorded inside the engine stop and start ECU memory even if the engine switch is off, and when the engine switch is next turned on (IG), the value is calculated from the value recorded when the engine switch was turned off.

Integrated Current Condition 1:
When "Status of Battery Charge Control" is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode (3°C to 10°C (37.4°F to 50°F)):
- Phase A (previous trip integrated current storage):
  
  When the engine 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 less than -16434 A-sec.
- Phase C (charging):
  
  When the integrated current has dropped to less than -16434 A-sec, stop and start control is prohibited from stopping the engine until the current reaches -15444 A-sec.
- Phase D (stop and start control permitted):
  
  Stop and start control is permitted to stop the engine until the integrated current reaches less than -16434 A-sec.

Integrated Current Condition 2:
When "Status of Battery Charge Control" is Low Temperature Mode (-1°C to 3°C (30.2°F to 37.4°F)):
- Phase A (previous trip integrated current storage):
  
  When the engine 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 less than -5544 A-sec.
- Phase C (charging):
  
  When the integrated current has dropped to less than -5544 A-sec, 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 less than -5544 A-sec.

Integrated Current Condition 3:
When "Status of Battery Charge Control" is Stop and Start Restriction Mode or Temperature High/Low Mode:
- Phase A (previous trip integrated current storage):
  
  When the engine 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 less than -990 A-sec.
- Phase C (charging):
  
  When the integrated current has dropped to less than -990 A-sec, 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 less than -990 A-sec.

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 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.

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.

Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Stop and Start / Active Test.
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 Do not perform Active Test for more than 3 seconds Wait 3 seconds before performing Active Test again
Pinion Gear Plunger	Starter pinion gear can be moved inward/outward	ON / OFF	Note Prohibited while the engine is running Do not perform Active Test for more than 3 seconds Wait 5 seconds before performing Active Test again
Starter Motor Drive Magnet Switch	Starter motor can be turned on/off	ON / OFF	Note Prohibited while the engine is running 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	-
Permit Cond (ABS)	When engine stop by stop and start control is prohibited, prohibition of control based on the brake system condition can be disabled/enabled.	ON / OFF	-
Electromagnetic Oil Pump	Operates the oil pump assembly with solenoid	ON / OFF	Preconditions: Engine switch on (IG) Engine not running
Heater Core Water Pump	Operates the heater accessory assembly (heater water pump assembly)	ON / OFF	Preconditions: Engine switch on (IG) Engine not running Note This test activates heater accessory assembly (heater water pump assembly) only 10 seconds.
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, IG SW, DTC, A/C, Interval, After Running, Engine Hood Closed, D Door Closed, Cancel Switch, AT/CVT, AT/CVT 2, 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, Oil pump Assembly with Solenoid, 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	-