STOP AND START SYSTEM

STOP AND START CONTROL

The stop and start system operates according to the following conditions, achieving appropriate engine stop and start control together with safe and smooth driving characteristics.

When all of the conditions in the following table have been met, the engine is stopped by stop and start control.

Item		Condition (All of the following conditions are met)
Idle Stop	Ignition Switch	5 seconds or more have passed with the ignition switch ON
	Engine Coolant Temperature	40 to 105°C (104 to 221°F)
	Ambient Temperature	Higher than -5°C (23 °F)
	Driver Door	3 seconds have elapsed after driver door closed
	Driver Seat Belt	3 seconds have elapsed after driver seat belt fastened
	Vehicle Stability Control System	Normal
	Brake Booster Vacuum	Sufficient
	Shift Position	After shift lever is operated and 1 second elapses, shift lever is in position other than R1 Shift lever is in neutral2
	CVT Oil Temperature*1	25 to 111°C (77 to 231.8°F)
	Stop and Start System Cancel Switch (Eco run Cancel Switch Assembly)	Off (system control is not prohibited)
	Vehicle Speed	0 km/h (0 mph) (After the engine warms up)
	Road Grade	-8° to +8°
	Engine Speed	Below 1250 rpm
	Engine Hood	3 seconds have elapsed after hood closed
	Battery Voltage	for 1WW Higher than 6.6 V when starter begins operation and higher than 6.6 V when cranking for 1ND-TV Higher than 6.5 V when starter begins operation and higher than 6.5 V when cranking for 8NR-FTS When using specified battery: Higher than 7.2 V1 or 7.6 V2 when starter begins operation and higher than 7.2 V1 or 8.14 V2 when cranking When using non-specified battery: Higher than 8.92 V when starter begins operation and higher than 8.92 V when cranking
	Battery Temperature*3	-10 to 70°C (14 to 158°F)
	Battery Integrated Current*4	0 A-sec or higher: After engine start by ignition switch operation The integrated current value has increased to 0 A-sec or higher at least once after ignition switch ON: Tech Tips The engine is stopped until the following conditions are not met: Higher than -3974 A-sec: "Status of Battery Charge Control"5 is Charge Control Coordination Mode or Low Temperature Mode6 Higher than -3974 A-sec: "Status of Battery Charge Control"5 is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode8 Higher than -5299 A-sec: "Status of Battery Charge Control"5 is Charge Control Coordination Mode or Low Temperature Mode7 Higher than 0 A-sec: "Status of Battery Charge Control"5 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode6,7 Higher than 0 A-sec: "Status of Battery Charge Control"5 is Stop and Start Restriction Mode or Temperature High/Low Mode*8
	Air Conditioning	Other than when stop and start control is prohibited
	Heater	One of the following conditions is met: Blower switch is off Blower switch is on when the ambient temperature is higher than 10°C (50°F), the engine coolant temperature is higher than 55°C (131°F) or the room temperature is -5°C (23°F) lower than the set temperature Blower switch on, air conditioning switch off and a certain amount of time has elapsed after engine restarted by stop and start control
	Steering Operation	45 deg/s or less
	Engine Control	Engine catalytic rapid warm-up is completed

Tech Tips

*1: for CVT
*2: for MT
*3: When the battery temperature is -15°C (5°F) or lower, or 75°C (167°F) or higher, stop and start control is prohibited. When the battery temperature returns to -10°C (14°F) or higher, or 70°C (158°F) or lower, stop and start control is permitted.
*4: Read the Data List item "Integrated Current" or "Oper Permission (Integrated Current)" when checking the integrated current value

Click here
*5: Please refer to the Data List "Status of Battery Charge Control" for information about the status of the battery charge control.
*6: for 1ND-TV
*7: for 1WW
*8: for 8NR-FTS

When the engine is stopped by stop and start control, and any of the following conditions are met, the engine will restart.

Item		Condition (Any of the following conditions are met)
Engine Restart	Brake Booster Vacuum	Brake booster vacuum insufficient (Brake booster vacuum changes in accordance with brake fluid pressure (brake pedal effort))
	Engine Hood Courtesy Switch (Hood Lock Assembly)	Engine hood courtesy switch (hood lock assembly) malfunctioning
	ECD System12	Malfunction in ECD system12 is detected
	SFI System*3	Malfunction in SFI system*3 is detected
	Oil Pump with Motor Assembly*4	Oil pump with motor assembly malfunctioning
	Power Steering System	Malfunction in power steering system is detected
	Vehicle Stability Control System	Malfunction in vehicle stability control system is detected
	Air Conditioning	The timer in the air conditioning amplifier assembly runs out
	Heater	Timer in the air conditioning amplifier assembly runs out
	Air Conditioning/Heater	Both of the following conditions are met: Blower switch: ON Evaporator temperature exceeds threshold value (threshold value varies with temperature, humidity and amount of solar radiation) Any of the following conditions are met: A/C switch, blower switch: ON Defogger switch: ON Blower switch turned off during auto control or blower mode changed to manual Changes from stop and start system priority control to normal system control
	Battery	Battery performance or voltage drops
	Battery Integrated Current*5	Battery current discharge with engine stopped: 6912 A-sec or more2 Battery current discharge with engine stopped: 5184 A-sec1*3
	Vehicle Speed	Vehicle speed signal is input (Vehicle stopped on a slope, etc.)
	Driver Door	Open
	Driver Seat Belt	Driver seat belt is unfastened
	Steering Wheel	Steering wheel turned 25 deg or more
	Brake Fluid Pressure	Brake fluid pressure decreases (brake pedal released) Tech Tips Do not start the engine while the brake hold is operating.
	Accelerator Pedal	Accelerator pedal is depressed
	Stop and Start System Cancel Switch (Eco run Cancel Switch Assembly)	When Stop and start system cancel switch (eco run cancel switch assembly) turn from off to on
	Heater Switch Assembly*6	The heater switch assembly is turned on

Tech Tips

*1: for 1ND-TV
*2: for 1WW
*3: for 8NR-FTS
*4: for CVT
*5: Read the Data List item "Integrated Current" or "Oper Permission (Integrated Current)" when checking the integrated current value

Click here
*6: w/ Combustion Type Power Heater System

SYSTEM PROHIBITION CONTROL

The engine stop and start ECU prohibits stop and start control by the stop and start system according to the table below. The prohibition conditions are specified for each system.

System	Prohibition Condition	Vehicle State	Restoration Condition	Prohibition Condition Check Timing
Engine	Engine coolant temperature less than 40°C (104°F)	Engine has not warmed up	Engine coolant temperature 40 between 105°C (104°F to 221°F)	Always
	Idle speed learning has not completed	Stop and start control prohibited until idle speed learning completes	Idle speed learning has completed	Always
	Engine catalytic rapid warm-up	Engine catalytic rapid warm-up is being performed	Engine catalytic rapid warm-up is completed	Each time engine is started or vehicle is stopped
Brake	Brake booster vacuum decreases	Brake booster vacuum decreases due to pumping the brakes, etc.	Normal brake booster vacuum is reached	Every time the vehicle stops
Brake	Brake master cylinder fluid pressure decreases	Brake pedal depressed lightly	Brake pedal depressed more	Every time the vehicle stops
Hill-start Assist Control	Brake control system malfunction	DTC detected	Brake control system returns normally	Always
	When hill-start assist control prohibition is necessary	Vehicle speed is 3 km/h (1.8 mph) or more	Vehicle is being stopped (vehicle speed is below 3 km/h (1.8 mph))	Always
	Communication between engine stop and start ECU and skid control ECU (brake actuator assembly) is invalid	Communication invalid	Communication between engine stop and start ECU and skid control ECU (brake actuator assembly) is valid	Always
Gradient of Road Surface	Outside the permission gradient range (vehicle front and rear road surface incline +8° or higher or -8° or lower)	Vehicle front and rear road surface incline +8° or higher or -8° or lower	Within the permission gradient range (vehicle front and rear road surface incline within +/-8°)	Always
Air Conditioning	Heater: When blower switch and air conditioning switch are on and Ambient temperature 10°C (50°F) or less, any of the following conditions are met (Only when the ignition switch is first turned to ON): Engine coolant temperature 55°C (131°F) or less Cabin temperature lower than set temperature by -11°C (12.2°F) or less	Heater performance decreases	Actual temperature higher than target temperature Blower switch off	While the heater is on
	Heater switch is on (for Combustion Type Power Heater System)	-	Heater switch is off (for Combustion Type Power Heater System)	While the heater is on
	Cooling function: When blower switch and A/C switch is on and ambient temperature 23°C (73.4°F) or higher, any of the following conditions are met (only when the ignition switch is first turned to ON): Evaporator temperature 9°C (48.2°F) or higher Cabin temperature higher than set temperature by 3°C (37.4°F) or higher, or blower level 16 or higher	Cooling performance decreases	Any of the following conditions have been met: Actual temperature higher than target temperature Blower switch is off Air conditioning switch is off	While the air conditioning system (cooling function) is on
	Defogger: Any of the following conditions are met: Defogger switch or blower switch on A certain amount of time after the engine is restarted by stop and start control when the ambient temperature is 10°C (50°F) or lower and the blower switch is on. A certain amount of time after engine is restarted by stop and start control when the ambient temperature is -7°C (19.4°F) or higher and air conditioning switch is on.	Fogging of windows Air conditioning performance decreases Odor from air vents	Any of the following conditions are met: Defogger switch or blower switch off A certain amount of time has elapsed after restarting the engine by stop and start control A certain amount of time has elapsed or the air conditioning switch is off after restarting the engine by the stop and start control	While the air conditioning system (cooling function for defogger) is on
	Temporary start and start control: Both of the following conditions are met: Blower switch on Evaporator temperature exceeds threshold (threshold varies with temperature, humidity and amount of solar radiation)	Blower switch on	Blower switch off and evaporator temperature within specified range	Always
Driver Door	Driver door opened before engine stop by engine stop and start control	Driver door courtesy switch ON signal input	3 seconds have elapsed since driver door was closed	Always
Engine Hood	Engine hood opened before engine stop by stop and start control	Engine hood switch OFF signal input	3 seconds have passed since engine hood was closed	Always
Seat Belt	Driver seat belt not fastened before engine stop by engine stop and start control	Driver seat belt buckle switch OFF signal input	3 seconds have passed since driver seat belt was fastened	Always
Steering Wheel	Steering wheel turned at a speed of 45 deg/s or more	Steering wheel operation signal input	Steering wheel being held	Always
CVT	CVT oil temperature lower than 25°C (77°F) or 111°C (231.8°F) or higher	CVT Oil Temperature signal is input	An appropriate CVT fluid temperature is reached	Always
Shift Position	Shift lever in R1 Shift lever in reverse2	Shift position signal input	Brake pedal depressed and shift lever is in D1 Brake pedal depressed and shift lever is in other than neutral and reverse2	Always
Ambient Temperature	Ambient temperature lower than -5°C (23°F)	-	Ambient temperature -5°C (23°F) or higher	Always
Power Source	When using specified battery: Higher than 8.08 V when starter begins operation and higher than 8.14 V when cranking When not using specified battery: Higher than 8.92 V when starter begins operation and higher than 8.92 V when cranking	Battery charge insufficient or battery has deteriorated	Battery charged or replaced	Every time the engine started
	Battery temperature below -15°C (5°F) or 75°C (167°F) or higher	Depends on Ambient temperature	An appropriate battery temperature is reached (between -10 and 70°C (14 to 158°F))	Always
	*Battery integrated current3 value meets one of the following conditions:** Below 0 A-sec: After engine start by ignition switch operation Any of the following conditions are met: -4383 A-sec or less: "Status of Battery Charge Control"4 is Charge Control Coordination Mode or Low Temperature Mode5 -6451 A-sec or less: "Status of Battery Charge Control"4 is Charge Control Coordination Mode or Low Temperature Mode6 -4838 A-sec or less: "Status of Battery Charge Control"4 is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode7 -864 A-sec or less: "Status of Battery Charge Control"4 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode5 -1152 A-sec or less: "Status of Battery Charge Control"4 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode6 -864 A-sec or less: "Status of Battery Charge Control"4 is Stop and Start Standalone Restriction Mode or Temperature High/Low Mode7	Heavy electrical load High stop and start rate (Time that engine stopped by stop and start control is long)	*Battery integrated current3 value meets both of the following conditions:** 0 A-sec or higher: After engine start by ignition switch operation Any of the following conditions are met: -3974 A-sec or higher: "Status of Battery Charge Control"4 is Charge Control Coordination Mode or Low Temperature Mode5 -5299 A-sec or higher: "Status of Battery Charge Control"4 is Charge Control Coordination Mode or Low Temperature Mode6 -3974 A-sec or higher: "Status of Battery Charge Control"4 is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode7 -0 A-sec or higher: "Status of Battery Charge Control"4 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode56 -0 A-sec or higher: "Status of Battery Charge Control"4 is Stop and Start Standalone Restriction Mode or Temperature High/Low Mode*7	Always
	During refresh charge	Cable reconnected to negative (-) battery terminal Refresh charge is performed for 30 minutes or longer for every 20 hours of driving56 Refresh charge is performed for 30 minutes or longer for every 30 hours of driving*7	30 minutes to 1 hour has elapsed	Always
	Engine started with the engine hood open (for jump starting)	-	After ignition switch is turned off, ignition switch is turned to ON with hood closed	Every time the engine started
Idling Stop Rate	Idling stop rate for one trip is 50% and total idling stop rate is 40%	Vehicle is stopped for long time	Idling stop rate has decreased due to vehicle being driven and engine idling	Always

Tech Tips

*1: for CVT
*2: for Manual Transaxle
*3: Read the Data List item "Integrated Current" or "Oper Permission (Integrated Current)" when checking the integrated current value
*4: Please refer to the Data List "Status of Battery Charge Control" for information about the status of the battery charge control.
*5: for 1ND-TV
*6: for 1WW
*7: for 8NR-FTS
If the cable is disconnected from the negative (-) battery terminal, stop and start control is prohibited until refresh charge is completed. In this case, drive the vehicle approximately 5 to 40 minutes until refresh charge is completed and stop and start control operation is permitted.
Allow the engine to idle for 3 minutes after the engine warms up and check that the engine speed is within 50 rpm of the target idle speed.

WARNING CONTROL

If any of the following operations are performed while the engine is stopped due to stop and start control, the system will not restart the engine. The engine will change the mode from "stopped due to system control" to "stalled" or the driver will be warned using the buzzer.

Operation	Warning Control
The engine hood is opened with the shift lever in neutral1 The engine hood is opened with the shift lever in P or N2	The engine starts
The engine hood is opened with the shift lever in other than neutral1 The engine hood is opened with the shift lever in D2	The engine stops (mode changes to "stalled", and the engine cannot be restarted until the iginition switch is turned off and then to ON)
The driver door is opened with the shift lever in other than neutral1 The driver door is opened with the shift lever in D2	The engine starts, warning buzzer sounds and stop and start indicator light blinks
The driver door is opened with the shift lever in neutral1 The driver door is opened with the shift lever in P or N2	The engine starts
The driver seat belt is unfastened	The engine starts
The shift lever is operated without depressing the clutch pedal*1	The buzzer sounds and stop and start indicator light blinks (engine will not start)

*1: for Manual Transaxle
*2: for CVT

WARNING INDICATOR AND BUZZER OPERATION

*a

Stop and Start Indicator Light

(Green)

*b

Stop and Start Cancel Indicator Light

(Orange)

The driver is informed of the system control status and warnings by the stop and start indicator light, stop and start cancel indicator light and the buzzer.

Stop and Start Indicator and Buzzer Operation
Item	Condition	Stop and start indicator light	Stop and start cancel indicator light	Buzzer
For 3 seconds after the ignition switch to ON	Normal operation	Does not comes on	Comes on1 Does not come on2	Does not sound
During stop and start control operation (engine is stopped)	Normal operation	Comes on	Does not come on	Does not sound
During stop and start control operation (engine is stopped)	Driver door opened	The blinking interval 0.15 seconds	Does not come on	Sounds*3
After engine started by stop and start control	Driver door opened within 5 seconds of engine start	The blinking interval 0.15 seconds	Does not come on	Sounds*3
Control is prohibited by the stop and start system cancel switch (combination switch assembly)	Normal operation	Does not come on	Comes on	Does not sound
Diagnostic trouble code	Any DTCs are stored	Does not come on	Blinks at 0.5 second interval.	Does not sound
Starter assembly life	Number of times the starter has been operated exceeds its limit	Does not come on	Blinks at 0.5 second interval.	Does not sound

*1: except Multi-information Display (Color Type)

*2: for Multi-information Display (Color Type)

*3: Shift lever in D (for CVT) or in other than neutral and reverse (for Manual Transaxle)

STOP AND START SYSTEM OPERATION CONDITION DISPLAY FUNCTION

Multi-information Display (Color Type) Operation
Display Operation	Condition	Multi-information Display
System Malfunction Display	A system malfunction is detected.	Stop & start system malfunction. Inspect at dealer.
Display of Temporary Cancellation of Idling Stop Operation	The driver seat belt is unfastened during idling stop.	Driver seat belt unbuckled.
	The driver operates the steering wheel more than a specified angle during idling stop.	Steering wheel turned.
	Hydraulic pressure of brakes becomes insufficient during idling stop.	For brake system.
	Cooling performance of the air conditioning system deteriorates during idling stop.	For climate control.
	Battery charge amount decreases during idling stop.	Battery charging.
	The hood is opened during idling stop.	Bonnet open.
Display of Prohibition Status of Engine Restart during Idling Stop Operation*	The shift lever is moved from N to another position without depressing the clutch pedal.	Stop & Start system active. Shift to N and depress clutch to restart.
Display of Prohibition Status of Stop and Start Control	Battery charge amount decreases and becomes insufficient for the engine stop requirements.	Battery charging.
	Hydraulic pressure of brakes is insufficient.	For brake system.
	The driver seat belt is not fastened.	Driver seat belt unbuckled.
	The air conditioning system is being used.	For climate control.
	The engine has been started with the hood opened.	Bonnet open.
	When a battery that is not specified is used and the battery voltage is below the lowest engine starting voltage.	Non-Dedicated Battery.
Display of Standby State of Stop and Start Control	Brake pedal depression is insufficient for the engine stop requirement.	Depress brake firmly to activate.

*: for Manual Transaxle

STOP AND START SYSTEM OPERATION

Depending on the type of malfunction, stop and start control may be prohibited by the fail-safe function. The following table shows effects on the vehicle and areas to be inspected when there is a malfunctions in the stop and start system.

Malfunctioning Area	Malfunction	DTC Output	Data List / Freeze Frame Data	Effect on Vehicle	Area to be Inspected
IGSW circuit	Open	P2531	IG Switch IG SW Abnoml	Stop and start control prohibited	Wire harness or connector
+B circuit	Open	-	Data List cannot be checked because power not supplied to the engine stop and start ECU	Stop and start control prohibited	Wire harness or connector
CLL (NSW) (park / neutral position switch assembly) circuit*1	Stuck on	P1780	Neutral Switch Neutral Switch Stuck ON Neutral SW Abnoml (ON)	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Park/neutral position switch assembly
	Stuck off	P1780	Neutral Switch Neutral Switch Stuck OFF Neutral SW Abnoml (OFF)	Stop and start control prohibited Stop and start cancel indicator light blinks
TMN (neutral position switch) circuit*2	Stuck on	P1780	Neutral Switch N position Switch N Position Voltage Status	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Neutral position switch
TMN (neutral position switch) circuit*2	Stuck on	P1780	Neutral Switch N position Switch N Position Voltage Status	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Neutral position switch
CLL (clutch start switch assembly (for lower)) circuit*2	Stuck on	P1862	Clutch Lower SW Clutch Lower SW Stuck ON N/Clutch Lower SW Abnoml (ON)	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Clutch start switch assembly (for lower) Clutch start switch assembly (for upper)
CLL (clutch start switch assembly (for lower)) circuit*2	Stuck off	-	Clutch Lower SW Clutch Lower SW Stuck OFF Clutch Lower SW Abnoml (OFF)	Stop and start control prohibited
CLU (clutch start switch assembly (for upper)) circuit*2	Stuck on	P1862	Clutch Upper SW Clutch Upper SW Stuck ON N/Clutch Upper SW Abnoml (ON)	Stop and start control prohibited Stop and start cancel indicator light blinks
CLU (clutch start switch assembly (for upper)) circuit*2	Stuck off	-	Clutch Upper SW Clutch Upper SW Stuck OFF N/Clutch Upper SW Abnoml (OFF)	Stop and start control prohibited
BNT1 (hood lock switch) circuit	Stuck on	-	Hood Courtesy Switch	The engine does not stall when the engine hood is opened with the shift lever in neutral while the engine is stopped by stop and start control	Wire harness or connector Hood lock switch assembly
BNT1 (hood lock switch) circuit	Stuck off	-	Hood Courtesy Switch	Stop and start control prohibited despite the engine hood being closed	Wire harness or connector Hood lock switch assembly
BRVC/PB/BRE2 (vacuum sensor) circuit	Open	P1540	Brk Boost Sen Abnoml 1 Brk Boost Sen Abnoml 2 Brk Boost Sen Abnoml 3	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Vacuum sensor assembly Brake booster assembly Check valve to connector tube hose
	Shorted	P1540
	Remains at intermediate value	P1541
ECAN (eco run cancel switch assembly) circuit	Stuck on	-	Cancel Switch	Stop and start control prohibited	Wire harness or connector Eco run cancel switch assembly
ECAN (eco run cancel switch assembly) circuit	Stuck off	-	Cancel Switch	Stop and start control cannot be canceled by pressing the eco run cancel switch assembly	Wire harness or connector Eco run cancel switch assembly
NOPM circuit OPM1 circuit OPO circuit (CVT oil pump with motor assembly)*1	Open Shorted Internal circuit malfunction Battery	P1538 P1539	Oil Pump Relay Oil Pump Status Oil Pump Duty State of Oil Pump Motor Rotation Oil Pump Motor Rotation Frequency Oil Pump Abnormality Judgment Status of O/P Signal 1 Status of O/P Signal 2	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Engine stop and start ECU Oil pump with motor assembly
CVT oil pump with motor assembly	Oil pump with motor assembly malfunction	P0942	Oper Permission(AT/CVT)	Stop and start control prohibited	Oil pump with motor assembly
STA circuit	Over-current	P0617	Starter Relay Overcurrent Starter Circuit Abnoml Starter Circuit Open	Stop and start control prohibited Stop and start cancel indicator light blinks	BBC fuse Wire harness or connector ST NO.1 relay Engine stop and start ECU
	Stuck on	P1644			Wire harness or connector ST NO.1 relay Engine stop and start ECU
	Stuck off	P1644
BBC (backup boost converter) circuit	Over-current	B22C0	State of BBC BBC Abnoml BBC Overcurrent BBC Check Result	Stop and start control prohibited Stop and start cancel indicator light blinks	BBC fuse Wire harness or connector Engine stop and start ECU Battery ECUs and sensors connected to BO1 and IGO1
BBC (backup boost converter) circuit	Open Shorted Internal circuit malfunction Battery	P323B	State of BBC BBC Duty BBC Thermistor BBC Abnoml BBC Over Heat BBC Power Low	Stop and start control prohibited Stop and start cancel indicator light blinks	BBC fuse Wire harness or connector Engine stop and start ECU Battery
VB- circuit	Open	P0560	VB Voltage Low	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Engine stop and start ECU
ECU inner circuit	Malfunction	P0607	-	Stop and start control prohibited Stop and start cancel indicator light blinks	Engine stop and start ECU
Monitoring CPU circuit	Malfunction	P060A	State of BBC	Stop and start control prohibited Stop and start cancel indicator light blinks	Engine stop and start ECU
EEPROM	Malfunction	P062F	EEPROM	Stop and start control prohibited Stop and start cancel indicator light blinks	Engine stop and start ECU
Sensor power source circuit	Malfunction	P0641	State of BBC	Stop and start control prohibited Stop and start cancel indicator light blinks	Engine stop and start ECU

Effects on Vehicle due to Related System Malfunctions
Malfunctioning Area	Malfunction	DTC Output	Data List / Freeze Frame Data	Effect on Vehicle	Area to be Inspected
ECD or SFI system	MIL illuminated	DTCs for ECD or SFI system output	Oper Permission (ECM)	Stop and start control prohibited	ECD or SFI system
	Abnormal NE signal	DTCs for ECD or SFI system output	NE Sensor Circuit Open 2 Crank Pos Sen Abnoml 3	Stop and start control prohibited Stop and start cancel indicator light blinks	ECD or SFI system (crank position sensor circuit) Wire harness or connector
	Crankshaft reverse rotation detection	DTCs for ECD or SFI system output	-	Stop and start control prohibited MIL illuminated	ECD or SFI system (crank position sensor circuit)
Charging system	Battery current sensor (generator control ECU assembly) malfunction	DTCs for charging system output	Battery Fluid Temperature Integrated Current	Stop and start control prohibited	Charging system
Brake control system	Vehicle stability control running	-	ABS Running	Stop and start control prohibited	-
Brake control system	Malfunction in wheel speed sensor	Brake control system DTCs output	Vehicle Sped 1 (ABS/VSC) Wheel Speed Malfunction	Stop and start control prohibited	Wire harness or connector Skid control ECU (Brake actuator assembly) Vehicle speed sensor
Power steering system	Malfunction in power steering system	EPS assist current value invalid	EPS Load Comm Err with EPS	Stop and start control prohibited	Power steering ECU assembly Torque sensor
Seat belt warning system	Malfunction in seat belt warning system	-	Oper Permission (Driver Side Buckle SW)	Stop and start control prohibited (stuck off) Engine does not restart when it is stopped by stop and start control (stuck on)	Front seat inner belt assembly (for driver side) Wire harness or connector
Driver door courtesy light switch circuit	Malfunction in driver door courtesy light switch circuit	-	D Courtesy Switch	Stop and start control prohibited (stuck off) Engine does not restart when it is stopped by stop and start control (stuck on)	Front door courtesy light switch assembly (for driver side) Driver door courtesy light switch circuit
Air conditioning system	Malfunction in ambient temperature sensor	Air conditioning system DTCs output	Ambient Temp Sensor	Stop and start control prohibited	Ambient temperature sensor circuit
Brake vacuum	Brake booster vacuum drops	-	Brake Boost Pressure Brake Negative Pressure Brk Boost Sen Abnoml 1 Brk Boost Sen Abnoml 2 Brk Boost Sen Abnoml 3	Stop and start control prohibited	Brake booster assembly vacuum Brake booster assembly Vacuum sensor assembly Check valve to connector tube hose
Power source	Backup boost converter malfunction	P323B	State of BBC BBC Duty BBC Thermistor BBC Abnoml BBC Over Heat BBC Power Low	Stop and start control prohibited Stop and start cancel indicator light blinks	BBC fuse Wire harness or connector Engine stop and start ECU Battery
	Charging system malfunction	-	Alternator Status	Stop and start control prohibited	Charging system
	Low voltage	P0562	Battery Abnoml	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Battery Relay
Number of starter operations	Exceeds the specified limit	P1545	Starter Count Abnoml	Stop and start control prohibited Stop and start cancel indicator light blinks	Starter assembly replacement is required. ST NO. 1 relay replacement is required. Fuse replacement is required.
Starter signal malfunction	Signal does not match with the starter switch	P1545	-	Stop and start control prohibited Stop and start cancel indicator light blinks	Wire harness or connector Engine stop and start ECU
Jump start	Engine started with the engine hood open	-	Eng Start Reg (Engine Hood Open)	Stop and start control prohibited (permitted when the ignition switch is turned off)	Check for a history of roadside service or jump start due to dead battery Engine hood courtesy switch (hood lock assembly)
CAN communication	Communication interrupted	U0100 U0121 U0126 U0131 U0140 U0151 U0155* U0164 U1110	-	Stop and start control prohibited Stop and start cancel indicator light blinks*3	Applicable wire harness or connector Applicable ECU

*1: for Manual Transaxle
*2: for CVT

Tech Tips

*3: The stop and start cancel indicator light does not blink when a communication error with the combination meter assembly occurs.

STOP AND START SYSTEM SYSTEM DESCRIPTION