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  :CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 2.2 (L.H.D.)]/CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 2.2 (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 malfunction or occurrence of any 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.
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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).

i-stop (engine-stop control) permit condition

Determination module

Determination item

Determination condition

Applicable PID

ATX

MTX
PCM
Vehicle speed
0 km/h {0 mph}
3 km/h {2 mph} or less
WSPD_SEN_LF
WSPD_SEN_RF
WSPD_SEN_LR
WSPD_SEN_RR
Brake pedal
Brake pedal is depressed while in D or M position
Not applicable
TR
BOO , BPA
Brake fluid pressure
Brake fluid pressure is 1.62 MPa {16.5 kgf/cm2, 235 psi} or more while in D or M position
Not applicable
TR
BRK_F_P_C
Accelerator pedal
Released
←
APP
Clutch pedal
Not applicable
Released
CPP
MTX gear position
Not applicable
Neutral
CPP/PNP
PCM
Vehicle conditions
Vehicle is stopped in D position*1, *6
Not applicable
TR
Steering speed
15 deg/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
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
4 km/h {2.5 mph} or more
I-Stop_VSP
DC-DC converter (i-ELOOP) output current
25 A or less
←
DCDC_OUT_I
i-ELOOP bypass mode operation condition
Bypass mode is not operated (BYPS_STAT: Bypass Off)
←
BYPS_STAT
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)
Not applicable
LON_ACCL_C
Seat belt (driver's side)
Fastened*4
←
SEAT_B_D
Fast idle increase
Completed
←
Not applicable
DPF regeneration
Completed
←
Not applicable
Fuel injection amount learning
Completed*5
←
Not applicable
Battery condition setting
Completed
←
Not applicable
Steering angle sensor initial setting
Completed
Not applicable
Not applicable
Engine coolant temperature
25—110 °C {77—230 °F}
←
ECT
Intake air temperature
100 °C {212 °F} or less
←
IAT
Altitude
European (L.H.D U.K.) specs.
•  1,800 m or less (BARO: 84.6 kPa {0.863 kgf/cm2, 12.3 psi} or more)
Except for European (L.H.D U.K.) specs.
•  1,500 m or less (BARO: 81.5 kPa {0.831 kgf/cm2, 11.8 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
IG2 output
Yes
←
RELAY_IG2
ACC output
Yes
←
RELAY_ACC
Push button
Not pressed
←
SSB_1
SSB_2
Door (all)
Closed
←
DOOR_ALL
Trunk (4SD)/Liftgate (WGN)
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)
Not applicable
I-Stop_EST
Panic stop
Brake pedal was not depressed suddenly within 4 s
Not applicable
Not applicable
TFT
20―117 °C {68—242 °F}
Not applicable
TFT
Gear position
Not in 2nd gear fixed mode
Not applicable
Not applicable
System condition
i-stop related part DTCs are not recorded
Not applicable
Not applicable
Climate control unit
Climate control unit determination condition
With full-auto A/C
•  All met
(STOP_ST: Available)
With manual A/C
•  All met
←
With full-auto A/C
•  STOP_ST
With manual A/C
•  Not applicable
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)
←
Not applicable
A/C temperature (with full-auto A/C)
Setting other than MAX/MIN
←
Not applicable
Ambient temperature
-10―50 °C {14—122 °F}
←
Not applicable
Warm-up operation condition (with manual A/C)
Ambient temperature is 10 °C {50 °F} or more and engine coolant temperature is 60 °C {140 °F} or more
←
ECT
Cold condition (with manual A/C)
Ambient temperature is 29 °C {84 °F} or less and evaporator temperature is 9 °C {48 °F} or less
←
Not applicable
Front defroster switch
OFF
←
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
Not applicable
Vehicle inclination angle
Inclination is within ±6° with shift positioned in D/M/R or N/P (LON_ACCL_C: within ±0.104 G)
Not applicable
TR
LON_ACCL_C
Wheel speed (4 wheels)
0 km/h {0 mph}
Not applicable
WSPD_SEN_LF
WSPD_SEN_RF
WSPD_SEN_LR
WSPD_SEN_RR
Brake pedal
Brake pedal is depressed
Not applicable
BRAKE_SW
Brake fluid pressure
Approx. 0.45 MPa {4.6 kgf/cm2, 65 psi} or more
Not applicable
BRK_F_P_C
Accelerator pedal
Released
Not applicable
APP
System condition
i-stop related part DTCs are not recorded
Not applicable
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  :IWhen 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.


i-stop (engine restart control) condition

Detection module

Detection item

Determination conditions

PID

ATX

MTX
PCM
Vehicle speed
1 km/h {0.6 mph} or more
4 km/h {2.5 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
Not applicable
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
Not applicable
TR
BRK_F_P_C
Accelerator pedal
Accelerator pedal is depressed while in D or M position
Not applicable
TR
APP
Clutch pedal
Not applicable
Depressed
CPP
Steering torque
2.8 N·m {29 kgf·cm, 25 in·lbf} or more while in D or M position
Not applicable
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
Not applicable
Shift operation
Operated from P or N position to D, M, or R position
Not applicable
TR
i-stop OFF switch
ON
←
I-Stop_OFF
DC-DC converter (i-ELOOP) output current
30 A or more
←
DCDC_OUT_I
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
•  All the following conditions are met:
―  Seat belt (driver's side): Not fastened
―  Door (driver's side): Open
―  P or N position
•  All the following conditions are met:
―  Seat belt (driver's side): Not fastened
―  Door (driver's side): Open
―  Neutral
SEAT_B_D
DOOR_D
TR
CPP/PNP
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
In 2nd gear fixed mode
Not applicable
Not applicable
TFT
20 °C {68 °F} or less, or 117°C {243 °F} or more
Not applicable
TFT
Vehicle speed
3 km/h {2 mph} or more
Not applicable
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
A/C request (with full-auto A/C)
Yes
←
STOP_ST
A/C set temperature (with full-auto A/C)
Set to MAX or MIN
←
Not applicable
Front defroster switch
ON
←
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
Not applicable