STOP AND START SYSTEM SYSTEM DESCRIPTION


  1. STOP AND START CONTROL

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


    1. When the conditions in the following table have been met, the engine can be stopped due to stop and start system control.

      Item

      Condition

      (All of the following conditions are met)
      Idle Stop Ignition Switch After more than 5 seconds have passed after the ignition switch turned to ON
      Engine Coolant Temperature 39 to 105 °C (102 to 221 °F)*1
      40°C to 105°C (104°F to 221°F)*2
      65°C to 105°C (149°F to 221°F)*3
      Atmospheric Pressure*3

      75 kPa (0.8 kgf/cm2, 11 psi) or higher
      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
      Brake Control System Normal
      Brake Booster Vacuum Sufficient brake booster vacuum
      Shift Position 1 second or more has passed after moving the shift lever to other than R
      CVT Fluid Temperature 25°C to 103°C (77°F to 217.4°F)
      Stop and Start Cancel Switch (Warning Canceling 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 1200 rpm or less
      Hood 3 seconds have elapsed after hood closed
      Battery Voltage

      • When using specified battery*1:


        • 7.6 V or more when starter begins operation, and 8.14 V or more when cranking.*5

        • 6.5 V or more when starter begins operation, and 6.94 V or more when cranking.*4

      • When not using specified battery*1:


        • 8.92 V or more when starter begins operation, and 8.92 V or more when cranking.

      • 8.8 V or more when starter begins operation, and 8.8 V or more when cranking.*2

      • 6.5 V or more when starter begins operation, and 6.5 V or more when cranking.*3
      Battery Temperature*6 -10°C or higher and 70°C or less (14°F or higher and 158°F or less)
      Idle Stop Battery Integrated Current (for 2NR-FKE)*7

      One of the following conditions is met:


      • Battery type LN2-ISS


        • -3974 A-sec or higher: Status of Battery Charge Control*8 is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode

        • 0 A-sec or higher: Status of Battery Charge Control*8 is Stop and Start Restriction Mode or Temperature High/Low Mode

      • Battery type LN3-ISS


        • -4554 A-sec or higher: Status of Battery Charge Control*8 is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode

        • 0 A-sec or higher: Status of Battery Charge Control*8 is Stop and Start Restriction Mode or Temperature High/Low Mode
      Battery Integrated Current (for 1KR-FE)*7

      One of the following conditions is met:


      • -3974 A-sec or higher: Status of Battery Charge Control*8 is Charge Control Coordination Mode or Low Temperature Mode

      • 0 A-sec or higher: Status of Battery Charge Control*8 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode
      Battery Integrated Current (for 1ND-TV)*7

      One of the following conditions is met:

      0 A-sec or higher: After engine start by ignition switch operation


      • -4554 A-sec or higher: Status of Battery Charge Control*8 is Charge Control Coordination Mode or Low Temperature Mode

      • 0 A-sec or higher: Status of Battery Charge Control*8 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode
      Idle Stop Air Conditioning Other than when stop and start control is prohibited
      Heater

      Either of the following conditions is met:


      • Blower switch is off

      • The blower switch is on when the ambient temperature is 11°C (51.8°F) or higher or the engine coolant temperature is 56°C (132.8°F) or higher*1, *2

      • The blower switch is on when the ambient temperature is 11°C (51.8°F) or higher or the engine coolant temperature is 46°C (114.8°F) or higher*3

      • Blower switch on, air conditioning switch off and a certain amount of time has elapsed after engine restarted by stop and start control

      • *1: for 2NR-FKE

      • *2: for 1KR-FE

      • *3: for 1ND-TV

      • *4: for Manual Transaxle

      • *5: for CVT

      Tech Tips


      • *6: When the battery temperature is -15°C (5°F) or less, or 75°C (167°F) or higher, the stop and start control is prohibited. When the battery temperature returns to -10°C (14°F) or higher, and 70°C (158°F) or less, stop and start control is permitted.

      • *7: Read the Data List item "Integrated Current" or "Oper Permission (Integrated Current)" when checking the integrated current value Click here.

      • *8: Please refer to the Data List "Status of Battery Charge Control" for information about the status of the battery charge control Click here.

    2. When the engine has been stopped due to Stop and start system control, and any of the following conditions are met, the engine will restart.

      Item

      Condition

      (Any of the following conditions is met)
      Engine Restart Brake Booster Vacuum Brake booster vacuum insufficient (Brake booster vacuum changes in accordance with brake fluid pressure (brake pedal effort))
      SFI System*1, *2 Malfunction in SFI system is detected
      ECD System*3 Malfunction in ECD system is detected
      Oil pump with motor assembly 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 The timer in the air conditioning amplifier assembly runs out
      Air Conditioning/Heater

      Both of the following conditions are met:


      • Blower switch: on

      • Within the certain period after restarting from idling stop (threshold value varies depending on the operating condition of idling stop)

      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 voltage drops (11.4 V or less)
      Battery Integrated Current*5

      • Battery type LN2-ISS


        • The accumulated value of discharge current during engine stop is too large (5184 A-sec or more)

      • Battery type LN3-ISS


        • The accumulated value of discharge current during engine stop is too large (5940 A-sec or more)
      Vehicle Speed Vehicle speed signal is input (Vehicle stopped on a slope, etc.)
      Driver Door Open
      Driver Seat Belt Driver seat belt is unfastened
      Brake Pedal Brake pedal released (brake fluid pressure decreases)
      Heater Switch Assembly*4 The heater switch assembly is turned on

      Stop and Start Cancel Switch

      (Warning Canceling Switch Assembly)

      OFF: System control is not prohibited

      ON: System control is not permited

      • *1: for 2NR-FKE

      • *2: for 1KR-FE

      • *3: for 1ND-TV

      • *4: w/ Combustion Type Power Heater System

      • *5: Read the Data List items "Integrated Current" or "Oper Permission (Integrated Current)" when checking the integrated current value Click here.

  2. SYSTEM PROHIBIT CONTROL

    The engine stop and start ECU prohibits Stop and start system control 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 is less than 39°C (102°F)*1 Engine has not warmed up Engine coolant temperature is 39°C to 105°C (102°F to 221°F) Always
    Engine coolant temperature is less than 40°C (104°F)*2 Engine has not warmed up Engine coolant temperature is 40°C to 105°C (104°F to 221°F) Always
    Engine coolant temperature is less than 65°C (149°F)*3 Engine has not warmed up Engine coolant temperature is 65°C to 105°C (149°F to 221°F) Always
    Idle speed learning has not completed Stop and start system control is prohibited until idle speed learning completes Idle speed learning has completed Always

    Atmospheric pressure 75 kPa (0.8 kgf/cm2, 11 psi) or less*3

    		 -

    Atmospheric pressure 75 kPa (0.8 kgf/cm2, 11 psi) or higher

    		 Always
    DPF warning light on (Excessive PM accumulation)*3 - DPF warning light off (PM regeneration complete) Always
    During PM regeneration*3 - PM regeneration complete Always
    Brake Brake booster vacuum decreases Brake booster vacuum decreases due to pumping the brakes or another reason Normal brake booster vacuum is reached Every time the vehicle stops
    Brake master cylinder fluid pressure decreases Brake pedal depressed lightly Brake pedal depressed more Every time the vehicle stops
    Hill Start Control*6 Brake control system malfunction DTC output Brake control system normalization 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 the engine stop and start ECU and the skid control ECU (brake actuator assembly) is not effective Communication is not effective. Communication between the engine stop and start ECU and the skid control ECU (brake actuator assembly) is effective Always
    Gradient of Road Surface Not within the allowable gradient range (gradient of road surface above 8 degrees or below -8 degrees) Gradient of road surface above 8 degrees or below -8 degrees Within the allowable gradient range (gradient of road surface below 8 degrees and above -8 degrees) Always
    Air conditioning

    Heater:

    All of the following conditions have been met:


    • Blower switch on

    • Outside temperature is 10°C (50°F) or less

    • Coolant temperature is less than 55°C (131°F)*1, *2

    • Coolant temperature is less than 45°C (113°F)*3

    • Cabin temperature lower than set temperature by -5°C or more

    		 Heater function is not effective

    • Actual temperature higher than target temperature

    • Blower switch off

    		 During heater operation
    Heater switch is on*4 - Heater switch is off While the heater is on

    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:


    • Evaporator temperature 9°C (48.2°F) or higher

    • than set temperature by 3°C (37.4°F) or higher, or blower level 16 or higher

    		 Cooling function is not effective

    Any of the following conditions have been met:


    • Actual temperature higher than target temperature

    • Blower switch is off

    • Air conditioning switch is off

    		 While air conditioning system (cooling function) is on

    Defogger:*7


    • Defogger switch on

    • Blower switch on

    		 Windows are easily fogged Defroster switch (front) or blower switch off While air conditioning system (cooling function for defogger) is on

    Temporary start and start control: Both of the following conditions are met:


    • Blower switch on

    • Within the certain period after restarting from idling stop (threshold value varies depending on the operating condition of idling stop)

    		 Blower switch on Blower switch off and evaporator temperature within specified range Always
    Door Driver door is opened before engine stopped due to engine stop and start control Driver door courtesy switch on signal is input 3 seconds after driver door is closed Always
    Engine hood Engine hood is opened before engine stopped due to stop and start control Engine hood switch OFF signal is input 3 seconds after engine hood is closed Always
    Seat belt Driver seat belt is not fastened before the engine stopped due to engine stop and start control Driver seat belt buckle switch OFF signal is input 3 seconds after driver seat belt is fastened Always
    CVT*6 CVT oil temperature lower than 25°C (77°F) or 103°C (217.4°F) or higher CVT Oil Temperature signal is input An appropriate CVT fluid temperature is reached Always
    Shift Position

    • Except P, N, D or M position*6

    • Except neutral*5

    		 Shift position signal input

    • Shift lever not in R*6

    • Clutch pedal depressed and shift lever is in neutral*5

    		 Always
    Ambient Temperature Ambient temperature -6°C (21.2°F) or lower - Ambient temperature -5°C (23°F) or higher Always
    Power source

    • When using specified battery*1:


      • Below 7.6 V when starter begins operation and below 8.14 V when cranking.*6

      • Below 6.5 V when starter begins operation and below 6.94 V when cranking.*5

    • When not using specified battery*1:


      • Below 8.92 V when starter begins operation and below 8.92 V when cranking.

    • Below 8.8 V when starter begins operation and below 8.8 V when cranking.*2

    • Below 6.5 V when starter begins operation and below 6.5 V when cranking.*3

    		 Battery charge is insufficient or battery has deteriorated Battery is charged or replaced Every time the engine is started
    Battery temperature is -15°C (5°F) or lower or 75°C (167°F)or higher Depends on environmental temperature Temperature is reached (-10°C or higher and 70°C or less (14°F or higher and 158°F or less)) Always
    Power source*1

    Battery integrated current*8 value meets one of the following conditions:


    • Battery type LN2-ISS


      • -4838 A-sec or higher: Status of Battery Charge Control*9 is Charge Control Coordination Mode, Stop and Start Standalone Mode, or Low Temperature Mode

      • -864 A-sec or higher: Status of Battery Charge Control*9 is Stop and Start Restriction Mode or Temperature High/Low Mode

    • Battery type LN3-ISS


      • -5544 A-sec or higher: Status of Battery Charge Control*9 is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode

      • -990 A-sec or higher: Status of Battery Charge Control*9 is Stop and Start Restriction Mode or Temperature High/Low Mode

    • Heavy electrical load

    • High stop and start rate (Time that engine stopped by stop and start system control is long)

    Battery integrated current*8 value meets one of the following conditions:


    • Battery type LN2-ISS


      • -3974 A-sec or higher: Status of Battery Charge Control*9 is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode

      • 0 A-sec or higher: Status of Battery Charge Control*9 is Stop and Start Restriction Mode or Temperature High/Low Mode

    • Battery type LN3-ISS


      • -4554 A-sec or higher: Status of Battery Charge Control*9 is Charge Control Coordination Mode, Stop and Start Standalone Mode or Low Temperature Mode

      • 0 A-sec or higher: Status of Battery Charge Control*9 is Stop and Start Restriction Mode or Temperature High/Low Mode

    		 Always
    During refresh charge

    • Cable reconnected to battery terminal

    • Refresh charge is performed for 30 minutes or more for every 30 hours of driving

    • Cable reconnected to battery terminal: 5 to 60 minutes

    • Periodic refresh charge: 30 to 60 minutes

    		 Always
    Engine is started with the engine hood open - After ignition switch turned off, ignition switch is turned ON with hood closed Every time the engine is started
    Power source*2

    Battery integrated current*8 value meets one of the following conditions:


    • -4838 A-sec or higher: Status of Battery Charge Control*9 is Charge Control Coordination Mode or Low Temperature Mode

    • -864 A-sec or higher: Status of Battery Charge Control*9 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode

    • Heavy electrical load

    • High stop and start rate (Time that engine stopped by stop and start system control is long)

    Battery integrated current*8 value meets one of the following conditions:


    • -3974 A-sec or higher: Status of Battery Charge Control*9 is Charge Control Coordination Mode or Low Temperature Mode

    • 0 A-sec or higher: Status of Battery Charge Control*9 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode

    		 Always
    During refresh charge

    • Cable reconnected to battery terminal

    • Refresh charge is performed for 30 minutes or more for every 20 hours of driving

    • Cable reconnected to battery terminal: 5 to 60 minutes

    • Periodic refresh charge: 30 to 60 minutes

    		 Always
    Engine is started with the engine hood open - After ignition switch turned off, ignition switch is turned ON with hood closed Every time the engine is started
    Power source*3

    Battery integrated current*8 value meets one of the following conditions:


    • -5544 A-sec or higher: Status of Battery Charge Control*9 is Charge Control Coordination Mode or Low Temperature Mode

    • -990 A-sec or higher: Status of Battery Charge Control*9 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode

    • Heavy electrical load

    • High stop and start rate (Time that engine stopped by stop and start system control is long)

    Battery integrated current*8 value meets one of the following conditions:


    • -4554 A-sec or higher: Status of Battery Charge Control*9 is Charge Control Coordination Mode or Low Temperature Mode

    • 0 A-sec or higher: Status of Battery Charge Control*9 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode

    		 Always
    During refresh charge

    • Cable reconnected to battery terminal

    • Refresh charge is performed for 30 minutes or more for every 20 hours of driving

    • Cable reconnected to battery terminal: 5 to 60 minutes

    • Periodic refresh charge: 30 to 60 minutes

    		 Always
    Engine is started with the engine hood open - After ignition switch turned off, ignition switch is turned ON with hood closed Every time the engine is started
    Idling Stop Rate Idling stop rate for one trip is more than 50% or total idling stop rate is more than 40% Vehicle is frequently stopped Idling stop rate has decreased due to vehicle being driven and engine idling Always

    • *1: for 2NR-FKE

    • *2: for 1KR-FE

    • *3: for 1ND-TV

    • *4: w/ Combustion Type Power Heater System

    • *5: for Manual Transaxle

    • *6: for CVT

    • *7: for Automatic Air Conditioning System

    Tech Tips


    • *8: Read the Data List items "Integrated Current" or "Oper Permission (Integrated Current)" when checking the integrated current value Click here.

    • *9: Please refer to the Data List item "Status of Battery Charge Control" for information about the status of the battery charge control. Click here.

    • If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed.

      In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item Status of Battery Charge Control changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the battery temperature at 11°C (51°F) or higher, the refresh charge will be completed.)

    • If the GTS is not available and the Data List item Status of Battery Charge Control cannot be checked, charge the battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.

      If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.

    • After the refresh charge completes, turn the ignition switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.

  3. 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 D or M*1 The engine stops (mode changes to "stalled", and the engine cannot be restarted until the ignition switch is turned off and then on
    The engine hood is opened with the shift lever in P or N*1 The engine starts
    The engine hood is opened while the shift lever is in neutral*2 The engine stops (mode changes to "stalled", and the engine cannot be restarted until the ignition switch is turned off and then on
    The driver door is opened with the shift lever in D or M*1 The engine starts, warning buzzer sounds and stop and start indicator light blinks
    The driver door is opened with the shift lever in P or N*1 The engine starts
    The driver door is opened while the shift lever is in neutral*2 The engine starts
    The driver seat belt is unfastened The engine starts
    The shift lever is operated without depressing the clutch pedal*2 The buzzer sounds and stop and start indicator light blinks (engine will not start)

    • *1: for CVT

    • *2: for Manual Transaxle

  4. WARNING BUZZER AND INDICATOR OPERATION

    A0046QDE03
    Text In Illustration
    *a

    Stop and start indicator light

    (Green)
    *b

    Stop and start cancel indicator light

    (Orange)

    System control status and warnings are shown to the driver 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

    (Green)

    Stop and start cancel indicator

    (Orange)

    		 Buzzer
    For 3 seconds after the ignition switch is turned to on Normal operation Come on Come on Does not sound
    During stop and start control operation (engine is stopped) Normal operation Come on Does not come on Does not sound
    Driver door is opened*1 The blinking interval is 0.5 seconds*3 Sounds*3
    The shift lever is operated without depressing the clutch pedal*2 The blinking interval 0.15 seconds. Sounds
    After restarting the engine is stopped by stop and start system Driver door is opened within 5 seconds*1 The blinking interval is 0.15 seconds*3 Sounds*3
    Control is prohibited by the stop and start cancel switch (warning canceling switch assembly) Normal operation Does not come on Comes on Does not sound
    Diagnostic trouble code Any DTCs are stored Does not come on The blinking interval is 0.5 seconds. Does not sound
    Starter life The number of times the starter has been operated exceeds its limit

    • *1: for CVT

    • *2: for Manual Transaxle

    • *3: While the shift lever is in D or M

  5. STOP AND START SYSTEM OPERATION CONDITION DISPLAY FUNCTION

    The stop and start system operation condition is displayed on the multi-information display.

    Stop and Start System Condition Multi-information Display Message*2 Vehicle Condition
    When the engine cannot be stopped by the stop and start system A0048A0

    *1

    		 "Battery Charging"

    • The battery charge amount may be low.

    • A refresh charge may be occurring.
    "For Brake System"

    • The brake booster load decreased.

    • The vehicle is operated at a high elevation.
    "For Climate Control"

    • The air conditioning system is being used when the ambient temperature is high or low.

    • Windshield defogger is pressed.
    "Bonnet Open" The engine has been started with the hood opened.
    "Driver Seat Belt Unbuckled" The driver seat belt is not fastened.
    When the engine automatically restarts while stopped by the stop and start system A0048A0

    *1

    		 "Driver Seat Belt Unbuckled" The driver seat belt is not fastened.
    "For Brake System" The brake pedal has been depressed further or pumped.
    "Bonnet Open" The hood is opened during idling stop.
    "For Climate Control"

    • The air conditioning system is turned on or the air conditioning is being used.

    • Windshield defogger is turned on.
    "Battery Charging" The battery charge amount may be low.
    Display of prohibition status of engine restart during idling stop operation*3 - "Stop & Start System active. Shift to N and depress clutch to restart" The shift lever is moved from neutral to another position without depressing the clutch pedal.
    Stop and start system may be malfunctioning -

    "Stop & Start System Malfunction"

    "Visit Your Dealer"

    		 -

    *1: When the engine cannot be stopped by the stop and start system or the engine is restarted while the engine is stopped by the stop and start system, the following mark is displayed on the multi-information display.

    Tech Tips

    *2: Examples of messages displayed during different situations are listed below in order of priority (some messages may not be displayed depending on the vehicle).


    • Engine cannot be stopped by stop and start system

      "Hood open", "Battery Charging", "For Brake System", "For Climate Control", "Driver Seat Belt Unbuckled", "Depress Brake Firmly to Activate"

    • Engine automatically restarted while engine stopped by stop and start system

      "Driver Seat Belt Unbuckled", "Steering Wheel Turned", "For Brake System", "For Climate Control", "Battery Charging"

    *3: for Manual Transaxle

  6. EFFECT OF MALFUNCTION ON STOP AND START SYSTEM OPERATION

    Depending on the malfunction, stop and start system control may be prohibited as a fail-safe function. The following table shows effects on the vehicle and areas to be inspected according to 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 system control prohibited Wire harness or connector
    +B circuit Open - Data List cannot be checked because power is not supplied to the engine stop and start ECU Stop and start system control prohibited Wire harness or connector
    CLL (NSW) (park/neutral position switch) 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
    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
    Stuck off P1780

    • Neutral Switch

    • N position Switch

    • N Position Voltage Status

    • Stop and start control prohibited

    • Stop and start cancel indicator light blinks
    CLL (clutch start switch assembly (for lower)) circuit*2 Stuck on P1862

    • Clutch Lower SW

    • Clutch SW Signal Abnoml

    • N/Clutch Lower SW Abnoml

    • 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)
    Stuck off -

    • Clutch Lower SW

    • N/Clutch Lower SW Abnoml

    		 Stop and start control prohibited
    CLU (clutch start switch assembly (for upper)) circuit*2 Stuck on P1862

    • Clutch Lower SW

    • Clutch SW Signal Abnoml

    • N/Clutch Lower SW Abnoml

    • Stop and start control prohibited

    • Stop and start cancel indicator light blinks
    Stuck off -

    • Clutch Lower SW

    • N/Clutch Lower SW Abnoml

    		 Stop and start control prohibited
    BNT1 (hood lock switch) circuit Stuck on - Hood Courtesy Switch

    • Mode does not change to "stalled" when engine hood opened with shift lever in D or M and engine stopped by stop and start control*1

    • 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*2

    • Wire harness or connector

    • Hood lock switch
    Stuck off - Hood Courtesy Switch Stop and start control prohibited despite the engine hood being closed
    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 (stop and start cancel switch (warning canceling switch assembly)) circuit Stuck on - Cancel Switch Stop and start system control prohibited

    • Wire harness or connector

    • Stop and start cancel switch (warning canceling switch assembly)
    Stuck off - Cancel Switch Stop and start system control cannot be canceled by pressing the stop and start cancel switch (warning canceling switch assembly)
    NOPM, OPM1, OPO circuit (CVT Oil pump with motor assembly)*1

    • Open

    • Short

    • Internal malfunction

    P1538

    P1539

    • Oil Pump Relay

    • Oil Pump Status

    • Oil Pump Duty

    • State of Oil Pump

    • O/P Relay Malfunction

    • O/P Motor Curr Abnormal

    • O/P No Synchro Signal

    • O/P Signal Fixed OFF

    • O/P Signal Fixed on

    • O/P Signal Open/Short

    • O/P Signal GND Short

    • O/P Circuit/Relay Error

    • O/P Cycle Malfunction

    • Stop and start system control prohibited

    • Stop and start cancel indicator blinks

    • Wire harness or connector

    • Engine stop and start ECU

    • Oil pump with motor assembly
    CVT oil pump assembly with motor*1 Oil pump assembly with motor malfunction P0942 Oper Permission (AT/ CVT) Stop and start control prohibited Oil pump assembly with motor
    STA circuit Overcurrent 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 relay

    • Engine stop and start ECU
    Stuck on P1644

    • Wire harness or connector

    • ST relay

    • Engine stop and start ECU
    Stuck off P1644
    BBC (backup boost converter) circuit Overcurrent 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

    • Open

    • Shorted

    • Internal circuit malfunction

    • Battery

    		 P323B

    • State of BBC

    • BBC Duty

    • BBC Thermistor

    • BBC Abnoml

    • BBC Over Heat

    • BBC Power Low

    • 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 (memory in the engine stop and start ECU) Malfunction P062F ECU-EEPROM

    • Stop and start system control prohibited

    • Stop and start cancel indicator 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
    Starter delay circuit*1 Malfunction P161D

    • Pinion Gear

    • Starter Motor

    • Starter Delay Circuit

    • Stop and start control prohibited

    • Stop and start cancel indicator light blinks

    		 Engine stop and start ECU
    Effects on Vehicle due to Related System Malfunction
    Malfunctioning Area Malfunction DTC Output Data List / Freeze Frame Data Effect on Vehicle Area to be Inspected
    SFI or ECD system MIL illuminated DTCs for SFI system output Oper Permission (ECM1) Stop and start system control prohibited SFI system
    Abnormal NE signal DTCs for SFI or ECD system output

    • NE Sensor Circuit Open 2

    • Ne Sensor Circuit Open 3

    • Stop and start control prohibited

    • Stop and start cancel indicator light blinks

    • SFI or ECD system (crank position sensor circuit)

    • Wire harness or connector
    Crankshaft reverse rotation detection DTCs for SFI or ECD system output -

    • Stop and start control prohibited

    • MIL illuminated

    		 SFI or ECD system (crank position sensor circuit)
    Charging system Battery state sensor*4 or battery current sensor*5, *6 malfunction Charging system DTCs

    • Battery Fluid Temperature

    • Integrated Current

    		 Stop and start control prohibited Charging system
    Continuously variable transaxle system The electric oil pump is abnormal. - CVT system malfunction Stop and start system control prohibited CVT system
    Vehicle stability control system ABS operating - ABS Running Stop and start system control prohibited -
    Malfunction in wheel speed sensor Brake control system DTCs output

    • Vehicle Spd 1(ABS/VSC)

    • Vehicle Spd 4 (Calc Value)

    		 Stop and start system control prohibited

    • Wire harness or connector

    • Skid control ECU (brake actuator assembly)

    • Vehicle speed sensor
    Power steering system Malfunction in the power steering system EPS assist current value invalid

    • EPS Load

    • Comm Err with EPS

    		 Stop and start system control prohibited

    • Power steering ECU

    • Torque sensor
    Seat belt warning system Malfunction in the 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 (Driver side)

    • Wire harness or connector
    Driver door courtesy light switch circuit Malfunction in the driver door courtesy light switch circuit - D Courtesy Switch Signal

    • Stop and start control prohibited (stuck off)

    • Engine does not restart when it is stopped by stop and start control (stuck on)

    • Stop and start cancel indicator light blinks

    • Sounds the warning buzzer

    • Front door courtesy light switch assembly (Driver side)

    • Driver door courtesy light switch circuit
    Air conditioning system Malfunction in outside temperature sensor Air conditioning system DTCs output Ambient Temp Sensor Stop and start system control prohibited Ambient Temp 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 system control prohibited

    • Brake booster assembly vacuum

    • Vacuum sensor

    • Brake booster assembly

    • Vacuum hose
    Power source Malfunction in backup boost converter (voltage may have dropped) P323B

    • State of BBC

    • BBC Duty

    • BBC Thermistor

    • BBC Abnoml

    • BBC Over Heat

    • BBC Power Low

    • Stop and start system control prohibited

    • Stop and start cancel indicator blinks

    • Wire harness or connector

    • Engine stop and start ECU

    • BBC fuse

    • Battery
    Charging system malfunction - Alternator Status Stop and start system control prohibited Charging system
    Low voltage P0562 Battery Abnormal

    • Stop and start system control prohibited

    • Stop and start cancel indicator blinks

    • Wire harness or connector

    • Battery

    • Relay
    Number of starter operations Exceeds the specified limit P1545 Starter Count Error

    • Stop and start system control prohibited

    • Stop and start cancel indicator blinks

    • Starter assembly replacement is required.

    • Fuse replacement is required.

    • ST Relay 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 Req (Engine Hood Open)

    Stop and start system control prohibited

    (resumes when the ignition switch is turned off)

    • Check for history of roadside service or jump start due to a dead battery

    • Engine hood courtesy switch (hood lock assembly)
    CAN communication Communication interrupted (V Bus)

    • U0100

    • U0121

    • U0126

    • U0131

    • U0140

    • U0151

    • U0155

    • U0164

    		 -

    • Stop and start system control prohibited

    • Stop and start cancel indicator blinks*3

    • Applicable harness or connector

    • Applicable ECU
    Communication interrupted (Power Management Bus) - - Stop and start system control prohibited

    • Wire harness or connector

    • Engine stop and start ECU

    • Power management control ECU

    • *1: for CVT

    • *2: for Manual Transaxle

    Tech Tips

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


    • *4: 2NR-FKE

    • *5: 1KR-FE

    • *6: 1ND-TV