FOREWORD [SKYACTIV-G 2.5T]

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Special Service Tool (SST)

49US 15 1A0
 
PROBE KIT

•  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 [L.H.D.].) (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 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 control is designed to not function (idling stop or engine restart) while the bonnet is open, however, when performing servicing in the engine compartment while a malfunction symptom has being occurred, be careful not to get caught in a rotating part if the engine were too restart accidentally.
•  When performing troubleshooting indicated with an asterisked (*), shake the applicable part, wiring harness, and connector by hand to determine if the malfunction is temporal caused by poor contact. If there is a malfunction in the connectors or terminals, properly connect them and repair or replace if necessary. If there is a malfunction in the connectors or terminals, properly connect them and repair or replace if necessary.
•  Engine-stop permit conditions and engine restart conditions by i-stop control as follows:

i-stop (engine-stop control) permit condition

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.
However, no brake pedal conditions during Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) operation*1
TR
BPA
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 fluid conditions during Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) operation*1
TR
BRK_F_P_C
Accelerator pedal
Released
APP
Vehicle conditions
Vehicle is stopped in D position*2
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)
STR_AB_EST
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
DC-DC converter (i-ELOOP) output current (with i-ELOOP)
25 A or less
DCDC_OUT_A
i-ELOOP bypass mode operation condition (with i-ELOOP)
Bypass mode is not operated (BYPS_STAT: Bypass Off)
BYPS_STAT
Capacitor (i-ELOOP) voltage (with i-ELOOP)
14 V or more
DCDC_IN_V
Battery charge condition
65.72 % 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
?49.8 kPa {?0.508 kgf/cm2, ?7.22 psi} or less
(value calculated by subtracting BARO from BBP)
BBP
BARO
Door (driver's side)
Closed
DOOR_D
Bonnet
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
Battery condition setting
Completed
Not applicable
Steering angle sensor initial setting
Completed
Not applicable
Engine coolant temperature
55—110 °C {131—230 °F}
ECT
Intake air temperature
100 °C {212 °F} or less
IAT
Altitude
1,800 m or less (BARO: 81.5 kPa {0.831 kgf/cm2, 11.8 psi} or more)
Not applicable
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 MIN*5
Not applicable
Ambient temperature
?10?50 °C {14—122 °F}
Not applicable
MODE switch
Except DEFROSTER
Not applicable
Airflow volume control switch
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   :During Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) 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 selector lever is shifted to N position. In addition, if the selector lever 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 the engine is started with the bonnet 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   :When the A/C set temperature is set to MAX, the PCM may inhibit the i-stop control.
*6   :When all of the other i-stop permit conditions related to the climate control unit are met even if the airflow volume control switch is on, the i-stop control is permitted.


i-stop (engine restart control) conditions

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
•  Brake pedal is released while in D or M position and AUTOHOLD is not operating.
However, no brake pedal conditions during Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) operation*1
TR
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 and AUTOHOLD is not operating.
However, no brake fluid conditions during Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) operation*1
TR
BRK_F_P_C
Accelerator pedal
Accelerator pedal is depressed while in D or M position
TR
APP
Steering torque
4.0 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
DC-DC converter (i-ELOOP) output current (with i-ELOOP)
30 A or more
DCDC_OUT_A
Battery charge condition
65 % or less
BATT_SOC
Power brake unit vacuum
?47.8 kPa {?0.487 kgf/cm2, ?6.93 psi} or more
(value calculated by subtracting BARO from BBP)
BBP
BARO
Driver not seated
•  Any one of the following conditions is met:
?  Seat belt (driver's side): Not fastened
?  Door (driver's side): Open
?  Bonnet: Open
SEAT_B_D
DOOR_D
TR
HOOD
Engine stop period by i-stop
120 s or more
Not applicable
Engine coolant temperature
55 °C {131 °F} or less
ECT
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 (with full-auto air conditioner system)
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 (with full-auto air conditioner system)
•  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
MODE switch
DEFROSTER
Not applicable
Airflow volume control dial (with full-auto air conditioner system)
MAX setting
DEF_SW
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
*1  :During Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) operation, the engine is not restarted by i-stop control even if the brake pedal is released.