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 40°C to 105°C (104°F to 221°F)*1, *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

      • After starter operation, Min Volt (After Cranking) is 7.6 V or more, and Min Voltage (Cranking) is 8.14 V or more.*1, *5

      • After starter operation, Min Volt (After Cranking) is 7.2 V or more, and Min Voltage (Cranking) is 7.2 V or more.*1, *4

      • After starter operation, Min Volt (After Cranking) is 8.8 V or more, and Min Voltage (Cranking) is 8.8 V or more.*2

      • After starter operation, Min Volt (After Cranking) is 6.5 V or more, and Min Voltage (Cranking) is 6.5 V or more.*3
      Battery Temperature*6 -10°C to 70°C (14°F to 158°F)
      Idle Stop Battery Integrated Current (for 1NR-FE)*7

      1. 0 A-sec or higher: After engine start by ignition switch operation

      2. The integrated current value has increased to 0 A-sec or higher at least once after the ignition switch is turned to ON:

        Tech Tips

        The engine is stopped until the following conditions are not met:


        • -4838 A-sec or higher: When Status of Battery Charge Control*8 is Change Control Coordination Mode or Low Temperature Mode*4

        • -864 A-sec or higher: When Status of Battery Charge Control*8 is Stop and Start Standalone, Stop and Start Restriction Mode or Temperature High/Low Mode*4

        • -5544 A-sec or higher: When Status of Battery Charge Control*8 is Change Control Coordination Mode or Low Temperature Mode*5

        • -990 A-sec or higher: When Status of Battery Charge Control*8 is Stop and Start Standalone, Stop and Start Restriction Mode or Temperature High/Low Mode*5
      Battery Integrated Current (for 1KR-FE)*7

      1. 0 A-sec or higher: After engine start by ignition switch operation

      2. The integrated current value has increased to 0 A-sec or higher at least once after the ignition switch is turned to ON:

        Tech Tips

        The engine is stopped until the following conditions are not met:


        • -4838 A-sec or higher: When Status of Battery Charge Control*8 is Change Control Coordination Mode or Low Temperature Mode

        • -864 A-sec or higher: When Status of Battery Charge Control*8 is Stop and Start Standalone, Stop and Start Restriction Mode or Temperature High/Low Mode
      Battery Integrated Current (for 1ND-TV)*7

      1. 0 A-sec or higher: After engine start by ignition switch operation

      2. The integrated current value has increased to 0 A-sec or higher at least once after the ignition switch is turned to ON:

        Tech Tips

        The engine is stopped until the following conditions are not met:


        • -5544 A-sec or higher: When Status of Battery Charge Control*8 is Change Control Coordination Mode or Low Temperature Mode

        • -990 A-sec or higher: When Status of Battery Charge Control*8 is Stop and Start Standalone, Stop and Start Restriction Mode or Temperature High/Low Mode
      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 1NR-FE

      • *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 lower, 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, or 70°C (158°F) or lower, 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: Read the Data List item "Status of Battery Charge Control" when checking 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))
      Engine Hood Courtesy Switch (Hood Lock Assembly) Engine hood courtesy switch (hood lock assembly) malfunctioning
      SFI System*1, *2 Malfunction in SFI system is detected
      ECD System*3 Malfunction in ECD system is detected
      Oil pump with motor assembly (Continuously Variable Transaxle Assembly) Oil pump with motor assembly (continuously variable transaxle 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 performance or voltage drops
      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

      • *1: for 1NR-FE

      • *2: for 1KR-FE

      • *3: for 1ND-TV

      • *4: w/ Combustion Type Power Heater System

  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 40°C (104°F)*1, *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 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*6 Shift lever in R Shift position signal input Shift lever not in R Always
    Ambient Temperature Ambient temperature -6°C (21.2°F) or lower - Ambient temperature -5°C (23°F) or higher Always
    Power source

    • After starter operation, Min Volt (After Cranking) is less than 7.6 V, and Min Voltage (Cranking) is less than 8.14 V.*1, *6

    • After starter operation, Min Volt (After Cranking) is less than 7.2 V, and Min Voltage (Cranking) is less than 7.2 V.*1, *5

    • After starter operation, Min Volt (After Cranking) is less than 8.8V, and Min Voltage (Cranking) is less than 8.8 V.*2

    • After starter operation, Min Volt (After Cranking) is less than 6.5V, and Min Voltage (Cranking) is less than 6.5 V.*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 outside temperature An appropriate battery temperature is reached (Battery temperature is -10 to 70°C) Always
    Power source*1

    Battery integrated current*8 value is:


    1. Less than 0 A-sec: After engine start by ignition switch operation

    2. One of the following integrated current conditions is met:


      • -4838 A-sec or higher: When Status of Battery Charge Control*9 is Change Control Coordination Mode or Low Temperature Mode*5

      • -864 A-sec or higher: When Status of Battery Charge Control*9 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode*5

      • -5544 A-sec or higher: When Status of Battery Charge Control*9 is Change Control Coordination Mode or Low Temperature Mode*6

      • -990 A-sec or higher: When Status of Battery Charge Control*9 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode*6

    • Heavy electrical load

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

    Battery integrated current*8 value is more than a certain level.


    1. 0 A-sec or higher: After engine start by ignition switch operation

    2. One of the following integrated current conditions is met:


      • -3974 A-sec or higher: When Status of Battery Charge Control*9 is Change Control Coordination Mode or Low Temperature Mode*5

      • 0 A-sec or higher: When Status of Battery Charge Control*9 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode*5

      • -4554 A-sec or higher: When Status of Battery Charge Control*9 is Change Control Coordination Mode or Low Temperature Mode*6

      • 0 A-sec or higher: When Status of Battery Charge Control*9 is Stop and Start Standalone Mode, Stop and Start Restriction Mode or Temperature High/Low Mode*6

    		 Always
    During refresh charge A refresh charge of 30 minutes or more is performed after every 20 hours of driving From 30 minutes to 1 hour pass Always
    Engine is started with the engine hood open (for jump starting) - With the ignition switch turned off, ignition switch is turned ON again after the vehicle hood has been closed Every time the engine is started
    Power source*2

    Battery integrated current*8 value is:


    1. Less than 0 A-sec: After engine start by ignition switch operation

    2. One of the following integrated current conditions is met:


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

      • -864 A-sec or higher: When 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 due to stop and start system control is long)

    Battery integrated current*8 value is more than a certain level.


    1. 0 A-sec or higher: After engine start by ignition switch operation

    2. One of the following integrated current conditions is met:


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

      • 0 A-sec or higher: When 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 A refresh charge of 30 minutes or more is performed after every 20 hours of driving From 30 minutes to 1 hour pass Always
    Engine is started with the engine hood open (for jump starting) - With the ignition switch turned off, ignition switch is turned ON again after the vehicle hood has been closed Every time the engine is started
    Power source*3

    Battery integrated current*8 value is:


    1. Less than 0 A-sec: After engine start by ignition switch operation

    2. One of the following integrated current conditions is met:


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

      • -990 A-sec or higher: When 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 due to stop and start system control is long)

    Battery integrated current*8 value is more than a certain level.


    1. 0 A-sec or higher: After engine start by ignition switch operation

    2. One of the following integrated current conditions is met:


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

      • 0 A-sec or higher: When 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 A refresh charge of 30 minutes or more is performed after every 20 hours of driving From 30 minutes to 1 hour pass Always
    Engine is started with the engine hood open (for jump starting) - With the ignition switch turned off, ignition switch is turned ON again after the vehicle hood has been closed Every time the engine is started

    • *1: for 1NR-FE

    • *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: Refer to Data List items "Integrated Current" and "Battery Integrated Current" Click here.

    • *9: Read the Data List item "Status of Battery Charge Control" when checking the battery charge control Click here.

    • If the cable is disconnected from the negative (-) battery terminal, stop and start control is prohibited until refresh charge is completed. After connecting the cable, drive the vehicle until refresh charge is completed and stop and start control is permitted (approximately 15 to 40 minutes).

    • 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.

  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

    A01VJ3TE03
    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. 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)
    OPST, 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 (Continuously variable transaxle 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 (continuously variable transaxle assembly)
    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 current sensor (generator control ECU assembly) malfunction DTCs for charging system output

    • 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
    Malfunction in charging system - 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 starting 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 a history of roadside service or jump starting due to a dead battery

    • Engine hood courtesy switch
    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.