i-stop (engine-stop control) permit condition

WARNING: This page is about a different variant/trim than selected.

-: Not applicable

I-STOP (ENGINE-STOP CONTROL) PERMIT CONDITION

Determination module

Determination item

Determination condition

PCM

Vehicle speed

0 km/h {0 mph}

Brake pedal

Brake pedal is depressed while in D or M position
However, no brake pedal conditions during Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) and Cruising & Traffic Support (CTS) operation ⁽¹⁾

Brake fluid pressure

Brake fluid pressure is 1.35 MPa {13.8 kgf/cm² , 196 psi} or more while in D or M position (perform correction according to vehicle inclination angle)
However, no brake pedal conditions during Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) and Cruising & Traffic Support (CTS) operation ⁽¹⁾

Accelerator pedal

Released

Vehicle conditions

Vehicle is stopped in D position ⁽²⁾

Steering speed

15 deg/sec or less

Steering angle

Within 65° of center to left and right
(After EPS control module learns center value)

Steering torque

1.1 N.m {11 kgf.cm, 9.7 in.lbf} or less

i-stop OFF switch

OFF

Vehicle speed history (After engine started and driven once)

3 km/h {2 mph} or more

Battery charge condition

65.72 % or more

Battery fluid temperature

0-70°C {32-158°F}

Battery voltage

11.2 V or more

Power brake unit vacuum

-49.8 kPa {-0.51 kgf/cm² , -7.2 psi} or less
(value calculated by subtracting BARO from BBP)

Door (driver's side)

Closed ⁽³⁾

Hood

Closed ⁽⁴⁾

Vehicle inclination angle

Within ±7° when level (ACC_LON: within ±0.121 G)
Slip judgment -10°-+6°

Seat belt (driver's side)

Fastened ⁽⁵⁾

Battery condition initial setting

Completed

Steering angle sensor initial setting

Completed

Engine coolant temperature

20-110°C {68-230°F}

Intake air temperature

100°C {212°F} or less

Altitude

2, 000 m or less

System condition

i-stop related part DTCs are not recorded

BCM

+B (ROOM fuse) input

Yes

IG1 input

Yes

ACC input

Yes

IG1 output

Yes

ACC output

Yes

Push button start

Not pressed

Door (all)

Closed

Liftgate

Closed

Seat belt (driver's side)

Fastened ⁽⁵⁾

Engine start

Engine was started by operating push button with key inside cabin (engine started first time)

Engine rotation speed

300 rpm or more is maintained after engine started

System condition

i-stop related part DTCs are not recorded

TCM

TCM detection condition

All met (I-Stop_EST: On)

Panic stop

Brake pedal was not depressed suddenly within 4 s

TFT

20-117°C {68-242°F}

Gear position

Not in 2nd gear fixed mode

System condition

i-stop related part DTCs are not recorded

Dash-electrical supply unit

Dash-electrical supply unit determination condition

All met

Cabin temperature (with full-auto A/C)

Difference between target cabin temperature and actual cabin temperature is a certain value or less
(Cabin temperature control by A/C is normally performed)

A/C temperature (with full-auto A/C)

Setting other than MAX/MIN

Ambient temperature

-10-50°C {14-122°F}

Cold condition (with full-auto A/C)

Ambient temperature is 4°C {39°F} or more or evaporator temperature is 12°C {54°F} or less

Defroster switch

OFF

System condition

i-stop related part DTCs are not recorded

Electronically controlled brake unit/DSC HU/CM

Operation request from PCM

Hill Launch Assist (HLA) control request signal from PCM is received

Vehicle inclination angle

Inclination is within ±6° with shift positioned in D/M/R or N/P (ACC_LON: within ±0.104 G)

Wheel speed (4 wheels)

0 km/h {0 mph}

Brake pedal

Brake pedal is depressed

Brake fluid pressure

Approx. 0.45 MPa {4.6 kgf/cm2, 65 psi} or more

Accelerator pedal

Released

System condition

i-stop related part DTCs are not recorded

⁽¹⁾	During Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) and Traffic Jam Assist (TJA) operation, the engine is stopped by i-stop control without having to depress the brake pedal.

⁽²⁾	After the vehicle is stopped, the engine stops if the gear is shifted to N position. In addition, if the gear is shifted to P position after the vehicle is stopped in D position, the engine stop condition by the i-stop control is maintained.

⁽³⁾	If a door is opened while the vehicle is stopped, i-stop is inhibited until a vehicle speed record is input once.

⁽⁴⁾	If the engine is started with the hood open, i-stop is inhibited until the engine is stopped.

⁽⁵⁾	If the seat belt is unfastened while the vehicle is stopped, i-stop is inhibited until a vehicle speed record is input once.