FOREWORD [SKYACTIV-D 2.2]

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•  If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure.

Troubleshooting Procedure

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*1  :(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].)

Repair order form

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Repair order form (i-stop)

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Action for Non-repeatable Malfunction

•  If the malfunction does not recur, verify the malfunction cause by performing the following actions:
―  Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data (such as PCM circuit voltage) at that time, and detect the malfunction cause.
―  Shake the wiring harness or connector of the electrical component which is suspected to be the cause of the malfunction, and inspect for occurrence of any malfunction or DTCs.
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―  Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection. (See ELECTRICAL SYSTEM.)
Note
•  SST (Reference): PROBE KIT (49US 15 1A0)
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i-stop control

•  The i-stop system is programmed to not function (stop or restart engine) while the bonnet is open, however, when performing servicing in the engine compartment be careful so as to prevent getting caught in a rotating part if the engine were too restart accidentally.
•  When performing an asterisks (*) troubleshooting inspection, shake the applicable part, wiring harness, and connector by hand to discover whether poor contact points are the cause of any intermittent malfunction. If there is a problem, inspect to make sure connectors, terminals and wiring harnesses are connected correctly and undamaged, and repair or replace if necessary.
•  Depending on the vehicle operation status and the conditions indicated in the table below, the engine may not stop or it may restart for a condition unrelated to driving operations (system is normal).

Engine stop control

i-stop (engine-stop control) permit condition
•  The conditions to stop the engine by the i-stop control are as follows:

Determination module

Determination item

Determination condition

Applicable PID
PCM
Vehicle speed
0 km/h {0 mph}
WSPD_SEN_LF
WSPD_SEN_RF
WSPD_SEN_LR
WSPD_SEN_RR
Brake pedal
Brake pedal is depressed while in D or M position*8
TR
BOO , BPA
Brake fluid pressure
Brake fluid pressure is 1.7 MPa {13.8 kgf/cm2, 196 psi} or more while in D or M position (perform correction according to vehicle inclination angle)
TR
BRK_F_P_C
Accelerator pedal
Released
APP
Vehicle conditions
Vehicle is stopped in D or M position*1, *7
TR
Steering speed
15 °/s or less
STR_ROT_SPD
Steering angle
Within 65° of center to left and right
(After EPS control module learns center value)
Not applicable
Steering torque
1.1 N·m {11 kgf·cm, 9.7 in·lbf} or less
STR_TRQ_S_M
i-stop OFF switch
OFF
I-Stop_OFF
Vehicle speed history
(After engine started and driven once)
3 km/h {2 mph} or more
I-Stop_VSP
Capacitor voltage
14 V or more
DCDC_IN_V
Battery charge condition
65.7 % or more
BATT_SOC
Battery fluid temperature
0—70 °C {32—158 °F}
BATT_TEMP
Battery voltage
11.2 V or more
BATT_V
Power brake unit vacuum
-45 kPa {-0.46 kgf/cm2, -6.5 psi} or less
(value calculated by subtracting BARO from BBP)
BBP
BARO
Door (driver's side)
Closed*2
DOOR_D
Hood
Closed *3
HOOD
Vehicle inclination angle
Within ±7° when level (LON_ACCL_C: within ±0.121 G)
LON_ACCL_C
Seat belt (driver's side)
Fastened*4
SEAT_B_D
Fast idle increase
Not implemented
Not applicable
DPF regeneration
Not implemented
Not applicable
Battery condition setting
Completed
Not applicable
Steering angle sensor initial setting
Completed
Not applicable
PCM
Engine coolant temperature
30—110 °C {86—230 °F}
ECT
Intake air temperature
100 °C {212 °F} or less
IAT
Altitude
1,800 m or less (BARO: 84.6 kPa {0.863 kgf/cm2, 12.3 psi} or more)
BARO
System condition
i-stop related part DTCs are not recorded
Not applicable
Start stop unit
+B (ROOM fuse) input
Yes
VPWR_B1
IG1 input
Yes
VPWR_IG1
ACC input
Yes
VPWR_ACC
IG1 output
Yes
RELAY_IG1
ACC output
Yes
RELAY_ACC
Push button
Not pressed
SSB_1
SSB_2
Door (all)
Closed
DOOR_ALL
Liftgate
Closed
TRUNK
Seat belt (driver's side)
Fastened*4
SEAT_B_D
Engine start
Engine was started by operating push button with key inside cabin (engine started first time)
Not applicable
Engine rotation speed
300 rpm or more is maintained after engine started
Not applicable
System condition
i-stop related part DTCs are not recorded
Not applicable
TCM
TCM detection condition
All met (I-Stop_EST: On)
I-Stop_EST
Panic stop
Brake pedal was not depressed suddenly within 4 s
Not applicable
TFT
20―117 °C {68—242 °F}
TFT
Gear position
Not in 2nd gear fixed mode
Not applicable
System condition
i-stop related part DTCs are not recorded
Not applicable
Climate control unit
Cabin temperature/
Difference between target cabin temperature and actual cabin temperature is a certain value or less
(Cabin temperature control by A/C is normally performed)
Not applicable
A/C temperature/
Setting other than MAX/MIN**5
Not applicable
Ambient temperature
-10―50 °C {14—122 °F}
Not applicable
DEFROSTER switch/
OFF
DEF_SW
Airflow volume control dial
Except MAX setting*6
Not applicable
System condition
i-stop related part DTCs are not recorded
Not applicable
DSC HU/CM
Operation request from PCM
Hill Launch Assist (HLA) control request signal from PCM is received
Not applicable
Wheel speed (4 wheels)
0 km/h {0 mph}
WSPD_SEN_LF
WSPD_SEN_RF
WSPD_SEN_LR
WSPD_SEN_RR
Brake pedal
Brake pedal is depressed
BRAKE_SW
Brake fluid pressure
Approx. 0.5 MPa {5 kgf/cm2, 73 psi} or more
BRK_F_P_C
Accelerator pedal
Released
APP
System condition
i-stop related part DTCs are not recorded
Not applicable

*1  :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.
*2  :If a door is opened while the vehicle is stopped, i-stop is inhibited until a vehicle speed record is input once.
*3  :If the engine is started with the hood open, i-stop is inhibited until the engine is stopped.
*4  :If the seat belt is unfastened while the vehicle is stopped, i-stop is inhibited until a vehicle speed record is input once.
*5  :If the fuel injection amount learning, which is periodically performed automatically, is not completed, the PCM turns the i-stop indicator light (green) off and inhibits i-stop when the vehicle speed is approx. 10 km/h {6.2 mph} or less before the vehicle stops.
*6  :When the A/C set temperature is set to MAX, the PCM may inhibit the i-stop control.
*7  :When all of the other i-stop permit conditions related to the climate control unit are met even if the airflow volume control dial is on, the i-stop control is permitted.
*8  :When shifting to the R position and driving the vehicle, the i-stop function is inhibited until the vehicle is driven at 5 km/h {3.0 mph} or more for 1 min or more after shifting to the D or M position.
*9  :The engine stop condition continues even if the brake pedal is released while the autohold switch is on.


Engine restart control

i-stop (engine restart control) conditions
•  Conditions for restarting the engine during i-stop control (engine stopped) are as follows:

Detection module

Detection item

Determination conditions

PID
PCM
Vehicle speed
1 km/h {0.6 mph} or more
WSPD_SEN_LF
WSPD_SEN_RF
WSPD_SEN_LR
WSPD_SEN_RR
Brake pedal
•  Brake pedal is released → depressed while in P or N position
TR
BOO , BPA
Brake fluid pressure
Brake fluid pressure is 0.35 MPa {3.6 kgf/cm2, 51 psi} or less while in D or M position
TR
BRK_F_P_C
Accelerator pedal
Accelerator pedal is depressed while in D or M position
TR
APP
Steering torque
4 N·m {41 kgf·cm, 35 in·lbf} or more while in D or M position
STR_TRQ_S_M
Steering angle
70° or more from center while in D or M position
(After EPS control module learns center value)
Not applicable
Shift operation
Operated from P or N position to D, M, or R position
TR
i-stop OFF switch
ON
I-Stop_OFF
Battery charge condition
65.7 % or less
BATT_SOC
Power brake unit vacuum
-43 KPa {-0.44 kgf/cm2, -6.2 psi} or more
(value calculated by subtracting BARO from BBP)
BBP
BARO
Driver not seated
•  When any of the following conditions is met:
―  Seat belt (driver's side): Not fastened
―  Door (driver's side): Open
―  P or N position
SEAT_B_D
DOOR_D
TR
Engine stop period by i-stop
120 s or more
Not applicable
Engine coolant temperature
23.5 °C {74.3 °F} or less
ECT
Fuel pressure
15 MPa {153 kgf/cm2, 2176 psi} or less
FRP
System condition
An i-stop related part DTC is recorded
Not applicable
Start stop unit
+B (ROOM fuse) input
No
VPWR_B1
Remote transmitter authorization
When engine restart by remote transmitter authorization is requested
•  Any door is open without remote transmitter left in vehicle
•  Remote transmitter is outside of vehicle after any door is opened
Not applicable
System condition
An i-stop related part DTC is recorded
Not applicable
TCM
Gear position
Not in 2nd gear fixed mode
Not applicable
TFT
20 °C {68 °F} or less, or 117°C {243 °F} or more
TFT
Vehicle speed
3 km/h {2 mph} or more
WSPD_SEN_LF
WSPD_SEN_RF
WSPD_SEN_LR
WSPD_SEN_RR
System condition
An i-stop related part DTC is recorded
Not applicable
Climate control unit
Cabin temperature
Difference between target cabin temperature and actual cabin temperature is a certain value or more
(Cabin temperature control by A/C is normally performed)
STOP_ST
A/C set temperature
•  If any one of the following conditions is met:
―  A/C switch: Turned ON and MAX COLD setting
―  MAX HOT setting
Not applicable
Ambient temperature
-10 °C {14 °F} or less, or 50 °C {122 °F} or more
Not applicable
DEFROSTER switch
ON
DEF_SW
Airflow volume control dial
MAX setting
Not applicable
System condition
An i-stop related part DTC is recorded
Not applicable
DSC HU/CM
System condition
An i-stop related part DTC is recorded
Not applicable