DTC INSPECTION [START STOP UNIT]


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CMDTC Self Test

1.  Connect the M-MDS to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

(1)  Select “Self Test”.
(2)  Select “All CMDTCs”.

3.  Verify the DTC according to the directions on the screen.

•  If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection after recording the snapshot data.

4.  After completion of repairs, clear all DTCs stored in the start stop unit. (See CLEARING DTC [START STOP UNIT].)


ODDTC Self Test

1.  Connect the M-MDS to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

(1)  Select “Self Test”.
(2)  Select “Modules”.
(3)  Select “SSU”.

3.  Verify the DTC according to the directions on the screen.

•  If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection after recording the snapshot data.

4.  After completion of repairs, clear all DTCs stored in the start stop unit. (See CLEARING DTC [START STOP UNIT].)


Snapshot Data

Note
•  The start stop unit stores the following two types of snapshot data (vehicle information) when a DTC is detected and displays them in the M-MDS.
―  Vehicle information detected by start stop unit
―  Vehicle information detected by instrument cluster and received by start stop unit via CAN signal
•  The data for all DTCs currently detected is stored.

—: Not applicable

Snapshot data item

Unit

Data contents

Data read/use method

Corresponding data monitor items

APP_STATUS
Accelerator Pedal Off/Under20%/Over20%/FAIL
Accelerator pedal position status
CFG_STATUS
Config Complete/Not Configured/Config Error
Instrument cluster configuration status
ECT_STATUS
Under 0 degrees C/0 - Under 80 degrees C/Over 80 degrees C/FAIL
Engine coolant temperature status
IC_VPWR
V
Instrument cluster power supply voltage
•  The start stop unit constantly receives the power supply voltage value of the instrument cluster sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the start stop unit records the power supply voltage of the instrument cluster when the DTC was detected, and it is displayed in the M-MDS.
VPWR*1
IG-ON_TIMER
hh:mm:ss*2
Elapsed time since ignition was switched ON (engine off or on)
Note
•  The instrument cluster records the elapsed time since the ignition was switched ON (engine off or on).
•  The start stop unit constantly receives the elapsed time since the ignition was switched ON (engine off or on) sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the start stop unit records the elapsed time since the ignition was switched ON (engine off or on) when the DTC was detected, and it is displayed in the M-MDS.
PWR_MODE_KEY
Key Out/Key Recently Out/Key Approved (Position 0)/Post Accessory (Position 0)/Accessory (Position 1)/Post Ignition (Position 1)/ignition On (Position 2)/Running (Position 2)/Running - Starting In Progress (Position 2)/Crank (Position 3)
Ignition switch status
•  The start stop unit constantly receives the ignition switch status sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the start stop unit records the ignition switch status when the DTC was detected, and it is displayed in the M-MDS.
RPM_STATUS
Engine Stop/Under1500rpm/Over1500rpm/FAIL
Engine speed status
•  The start stop unit constantly receives the engine speed sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the start stop unit records the engine speed when the DTC was detected, and it is displayed in the M-MDS.
TACHOMTR*1
SHIFT_STATUS
P/N/D/R/FAIL
Selector lever position status
•  The start stop unit constantly receives the selector lever position sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the start stop unit records the selector lever position when the DTC was detected, and it is displayed in the M-MDS.
TOTAL_DIST
km
Miles
Accumulated total traveled distance from completion of vehicle until start stop unit detects DTC (Odometer value in instrument cluster)
The total traveled distance from which the start stop unit detects DTCs to the present can be calculated by performing the following procedure.
1.  Verify the odometer value in the instrument cluster.
2.  Verify the snapshot data item TOTAL_DIST.
3.  Subtract 2 from 1.
TOTAL_TIME
hh:mm:ss*2
Accumulated total elapsed time since vehicle completion until start stop unit detects a DTC
Note
•  When the ROOM fuse is removed, and the ignition is switched off, the time is not included in the elapsed time.
The elapsed time from which the start stop unit detects DTCs to the present can be calculated by performing the following procedure.
1.  Verify the instrument cluster PID item TOTAL_TIME.
2.  Verify the snapshot data item TOTAL_TIME.
3.  Subtract 2 from 1.
TOTAL_TIME*1
TRNS_NUM_L
Initial/No.1/No.2/No.3/No.4/No.5/No.6
Registration number of the remote transmitter
If the start stop unit detects DTC B13D3:16 (Low remote transmitter battery voltage), inspect the remote transmitter in which the malfunction is occurring using the following procedure to display the registration number of the remote transmitter that was operated.
1.  Verify the registration number of the remote transmitter in the snapshot data.
2.  Display the start stop unit PID item RF_TRNS_NUM and inspect the battery voltage of the remote transmitter having the same registration number as the recorded remote transmitter registration number.
VPWR
V
Start stop unit power supply voltage
VPWR_B2
VPWR_B1
V
Start stop unit power supply voltage (ROOM fuse)
VPWR_B1
VSPD_STATUS
Stop/0-10km/h/Over10km/h/FAIL
Vehicle speed status
•  The start stop unit constantly receives the vehicle speed sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the start stop unit records the vehicle speed when the DTC was detected, and it is displayed in the M-MDS.
SPEEDOMTR*1

*1  :Instrument cluster PID (See PID/DATA MONITOR TABLE [INSTRUMENT CLUSTER].)
*2  :The seconds may be indicated after the decimal point.

Verifying DTCs Using Security Indicator Light (Immobilizer System)

Note
•  If multiple DTCs are detected, only those having the lowest numbers of those detected will be indicated by the security light.
•  A DTC is displayed 10 times by switching the ignition ON (engine off or on) once.

1.  Switch the ignition ON (engine off or on).

2.  Wait for approx. 1 min until the security indicator light displays a DTC.

Note
•  If the following DTCs are detected when the ignition is switched ON (engine off or on), the DTC is displayed after the security indicator light is flashed or illuminated for approx. 1 min.
―  If a DTC 16 or below is detected, the security indicator light flashes for approx. 1 min.
―  If a DTC 22 or 23 is detected, the security indicator light illuminates for approx. 1 min.
•  DTC 21 is displayed when the ignition is switched ON (engine off or on) and the security indicator light illumination turns off for approx. 1 min.

3.  Read DTCs by the number of times the security indicator light flashes as shown in the figure.

Example: DTC 13

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4.  Repair the malfunctioning part according to the applicable DTC troubleshooting based on the DTC which was verified by the number of times the security indicator light flashed. (See DTC TABLE [START STOP UNIT].)


Detecting DTCs Using M-MDS

1.  Connect the M-MDS to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

(1)  Select “Self Test”.
(2)  Select “All CMDTCs”.

3.  Verify the DTC according to the directions on the screen.

•  If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.

4.  After completion of repairs, clear all DTCs stored in the start stop unit. (See CLEARING DTC [START STOP UNIT].)