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Auto Idle Stop - Operation Conditions (2016 2017 2018)

Disable Conditions for Auto Idle Stop 

When any of the following conditions are met, auto idle stop is disabled.

NOTE:  Check the DTCs of all systems before doing the inspection of the auto idle stop.

Idle Stop Disable Conditions HDS AUTO IDLE STOP INDICATOR (amber)
Item Conditions Parameter Menu
Intelligent Traction Management Switch (AWD) Any mode is selected.
(Except NORMAL mode)
 
>----< >----< >----<
SNOW Switch (2WD) SNOW mode is ON. >----< >----< >----<
Idle Stop Off Switch Idle stop off switch is ON. IDLE STOP INHIBIT (IDLE STOP CANCEL SWITCH) PGM FI ON
Hood Hood is open.
(Security hood switch is OFF)
IDLE STOP INHIBIT (HOOD OPEN) PGM FI >----<
Driver's Seat Belt Buckle Switch Driver seat belt is not latched. IDLE STOP INHIBIT (SEAT BELT UNFASTENED) PGM FI >----<
Steering Wheel Steering wheel is operated. IDLE STOP INHIBIT (EPS UNIT) PGM FI >----<
Vehicle Speed
  • More than 0 mph (0 km/h).
     
  • VEHICLE SPEED
PGM FI >----<
  • VEHICLE SPEED
AT >----<
  • LEFT FRONT WHEEL SPEED
ABS VSA >----<
  • RIGHT FRONT WHEEL SPEED
ABS VSA >----<
  • LEFT REAR WHEEL SPEED
ABS VSA >----<
  • RIGHT REAR WHEEL SPEED
ABS VSA >----<
  • Does not exceed 3 mph (5 km/h) after engine start or engine restart from idle stop*.

    *: Does not exceed 9.3 mph (15 km/h) when the acceleration and deceleration are repeated while driving at low speed.

>----< >----< >----<
Transmission
 
 
Auto Idle Stop Disable Conditions Determination IDLE STOP INHIBIT (AT/CVT: PRECONDITION) PGM FI >----<
  • Shift position is not D.
  • A/T D SWITCH
AT >----<
  • Transmission fluid temperature is too high (more than 230 °F (110 °C)) or too low (less than 68 °F (20 °C)).
  • ATF Temperature
AT >----<
VSA
  • VSA system is operated.
IDLE STOP INHIBIT
(ABS/VSA UNIT)
PGM FI >----<
  • VSA sensor neutral position memorization is not completed.
VSA ADJUSTMENT ABS VSA >----<
Brake Pedal
  • Brake pedal is not pressed (Brake pedal pressed: BRAKE SWITCH is ON/IDLE STOP SW is OPEN).
CRUISE BRAKE SW/IDLE STOP SW PGM FI >----<
  BRAKE SWITCH PGM FI >----<
  • Brake pedal pressing is weak (brake system is low oil pressure).
>----< >----< >----<
Accelerator Pedal Accelerator pedal is pressed. APP SENSOR PGM FI >----<
Incline Uphill or downhill determination IDLE STOP INHIBIT
(INCLINED STATE)
PGM FI >----<
PGM-FI
 
 
  • Operation number of starter exceed specified value.
>----< >----< Blinks
  • PCM idle learn procedure is not completed.
IDLE LEARN PGM FI >----<
  • Engine coolant temperature is too high (more than 230 °F (110 °C)) or too low (less than 149 °F (65 °C)).
ECT SENSOR 1 PGM FI >----<
Brake Booster Pressure Auto Idle Stop Disable Conditions Determination IDLE STOP INHIBIT
(BRAKE SYSTEM)
PGM FI >----<
  • Brake booster pressure is low (almost 0 kPa (0 inHg, 0 mmHg) than -32.9 kPa (-9.7 inHg, -247 mmHg))*.

    *: It is a variable depending on the atmospheric pressure.

  • BRAKE BOOSTER PRESSURE SENSOR
BRAKE SYSTEM >----<
Climate Control System
 
 
 
 
Auto Idle Stop Disable Conditions Determination
(While the climate control system is on)
IDLE STOP INHIBIT (HVAC) PGM FI >----<
  • Windshield defrost button is ON.
>----< >----< >----<
  • Temperature setting is Hi or Lo.
>----< >----< >----<
  • On demand multi-use display (ODMD)™ (blower fan display) is more than 5 segments.
>----< >----< >----<
  • Outside air temperature is 104 °F (40 °C) or above.
>----< >----< >----<
  • Outside air temperature is -4 °F (-20 °C) or less.
>----< >----< >----<
  • Windshield fogging is detected (based on outside air temperature, humidity, and other conditions).
>----< >----< >----<
 
  • When the cabin is uncomfortable due to high or low interior air temperature or high humidity.
  • Rear switch ON, blower fan at maximum speed.
>----< >----< >----<
DC-DC Converter Auto Idle Stop Disable Conditions Determination IDLE STOP INHIBIT (DC-DC CONVERTER) PGM FI >----<
  • DC-DC converter temperature failure/DC-DC converter internal failure/DC-DC converter input voltage failure.
>----< >----< >----<
12 Volt Battery
 
 
Auto Idle Stop Disable Conditions Determination IDLE STOP INHIBIT
(BATTERY MANAGEMENT SYSTEM)
PGM FI >----<
  • Temperature of the 12 volt battery is less than 14 °F (-10 °C).
  • ESTIMATED BATTERY TEMPERATURE

    (BATTERY SENSOR)

PGM FI >----<
  • 12 volt battery is deteriorated.
  • IDLE STOP INHIBIT

    (BATTERY DETERIORATION)

PGM FI >----<
  • 12 volt battery voltage is insufficient.
  • IDLE STOP INHIBIT

    (LOW BATTERY VOLTAGE)

PGM FI >----<

NOTE: 

Engine Restart Conditions After Auto Idle Stop 

When any of the following conditions are met, the engine restarts after auto idle stop.

Engine Restart Conditions HDS
Item Conditions Parameter Menu
Idle Stop Off Switch Idle stop off switch is turned from OFF to ON. IDLE STOP INHIBIT (IDLE STOP CANCEL SWITCH) PGM FI
Driver's Seat Belt Buckle Switch Driver's seat belt is removed. IDLE STOP INHIBIT (SEAT BELT UNFASTENED) PGM FI
Automatic Brake Hold When the brake hold is changed operation to the deactivation. >----< >----<
Intelligent Traction Management Switch (AWD) Except NORMAL mode is selected. >----< >----<
SNOW Switch (2WD) SNOW mode is turned from OFF to ON. >----< >----<
Steering Wheel Steering wheel is operated. IDLE STOP INHIBIT (EPS UNIT) PGM FI
Vehicle Speed 0.6 mph (1 km/h) or more.
 
 
 
 
 
  • VEHICLE SPEED
PGM FI
  • VEHICLE SPEED
AT
  • LEFT FRONT WHEEL SPEED
ABS VSA
  • RIGHT FRONT WHEEL SPEED
ABS VSA
  • LEFT REAR WHEEL SPEED
ABS VSA
  • RIGHT REAR WHEEL SPEED
ABS VSA
Transmission
 
  • Shift to any driving position other than D, or shift to D from N.
  • A/T N SWITCH
  • A/T D SWITCH
ATAT
  • Transmission fluid temperature is too high (more than 230 °F (110 °C)) or too low (less than 68 °F (20 °C)).
  • ATF Temperature
AT
Brake Pedal
  • Brake pedal is released during auto idle stop (Brake pedal released: BRAKE SWITCH is OFF/IDLE STOP SW is CLOSE).
  • CRUISE BRAKE SW/IDLE STOP SW
  • BRAKE SWITCH
PGM FI

PGM FI

Accelerator Pedal Accelerator pedal is pressed. APP SENSOR PGM FI
Brake Booster Pressure Engine Restart Determination IDLE STOP INHIBIT (BRAKE SYSTEM) PGM FI
  • Brake booster pressure became low (almost 0 kPa (0 inHg, 0 mmHg) than -30.2 kPa (-8.9 inHg, -227 mmHg))*.

    *: It is a variable depending on the atmospheric pressure.

  • BRAKE BOOSTER PRESSURE SENSOR
BRAKE SYSTEM
Climate Control System Engine Restart Determination IDLE STOP INHIBIT (HVAC) PGM FI
  • Windshield defrost button is ON.
>----< >----<
  • Selected system temperature is colder or warmer than the outside air temperature.
  • Rear switch ON, blower fan at maximum speed.
>----< >----<
12 Volt Battery 12 volt battery voltage decrease during auto idle stop. IDLE STOP INHIBIT
(LOW BATTERY VOLTAGE)
PGM FI

Engine Restart Disable Conditions 

When any of the following conditions are met, engine restarts is disabled after auto idle stop.

Engine Restart Disable Conditions HDS
Item Conditions Parameter Menu
Hood Hood is open. (Security hood switch is OFF) IDLE STOP INHIBIT (HOOD OPEN) PGM FI
Starter
 
  • Engine cranks long time of 5 seconds or more.
>----< >----<
  • Engine does not crank.
>----< >----<
DC-DC Converter Engine Restart Disable Determination IDLE STOP INHIBIT (DC-DC CONVERTER) PGM FI
  • DC-DC converter temperature failure/DC-DC converter internal failure/DC-DC converter input voltage failure.
>----< >----<