ON-BOARD DIAGNOSIS [LASER SENSOR]

id0402c4800200


On-Board Diagnostic (OBD) Test Description

•  The OBD test inspects the integrity and function of the laser sensor and outputs the results when requested by the specific tests.
•  On-board diagnostic test also:
―  Provides a quick inspection of the laser sensor usually performed at the start of each diagnostic procedure.
―  Provides verification after repairs to ensure that no other faults occurred during service.
•  The OBD test is divided into 3 tests:
―  Read/clear diagnostic results, PID monitor and record and active command modes.

Read/clear diagnostic results

•  This function allows you to read or clear DTCs in the laser sensor memory.


PID/Data monitor and record

•  This function allows you to access certain data values, input signals, calculated values, and system status information.


Reading DTCs Procedure


CMDTC self test

1.  Connect the M-MDS (IDS) to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

(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 laser sensor. (See Clearing DTCs Procedure.)

Note
•  Snapshot data appears at the top of the help screen when the displayed DTC is selected.
•  The data for all DTCs currently detected is stored.


Clearing DTCs Procedure


CMDTC clearing DTCs procedure

1.  Connect the M-MDS (IDS) to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

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

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

4.  Press the clear button on the DTC screen to clear the DTC.

5.  Switch the ignition off.

6.  Switch the ignition ON and wait for 5 s or more.

7.  Perform DTC inspection. (See Reading DTCs Procedure.)

8.  Verify that no DTCs are displayed.


PID/Data Monitor and Record Procedure

1.  Connect the M-MDS (IDS) to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

(1)  Select “DataLogger”.
(2)  Select “Modules”.
(3)  Select “SCBS”.

3.  Select the applicable PID from the PID table.

4.  Verify the PID data according to the directions on the screen.

Note
•  The PID data screen function is used for monitoring the calculated value of input/output signals in the module. Therefore, if the monitored value of the output parts is not within the specification, it is necessary to inspect the monitored value of input parts corresponding to the applicable output part control. In addition, because the system does not display an output part malfunction as an abnormality in the monitored value, it is necessary to inspect the output parts individually.

Snapshot Data Access Procedure

1.  Connect the M-MDS (IDS) to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

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

3.  Then, select the “Retrieve CMDTCs” and perform procedures according to directions on the IDS screen.

4.  Retrieve the snapshot data according to the directions on the IDS screen.

Note
•  Snapshot data appears at the top of the help screen when the displayed DTC is selected.
•  The snapshot data stores the currently detected DTC data.

DTC Table

×: Applicable
-: Not applicable

DTC No.

Smart City Brake Support (SCBS) indicator light (amber)

Malfunction location

Fail-safe

Drive cycle

Self test type*

Memory function

Page
U0001:00
Illuminated
CAN line
×
Not applicable
C
×
(See DTC U0001:00/U0100:00/U0121:00/U0131:00/U0155:00 [LASER SENSOR].)
U0100:00
U0121:00
U0131:00
U0155:00
U0401:68
Illuminated
Abnormal message from PCM
×
Not applicable
C
×
(See DTC U0401:68 [LASER SENSOR].)
U0415:68
Illuminated
Abnormal message from DSC HU/CM
×
Not applicable
C
×
(See DTC U0415:68 [LASER SENSOR].)
U0420:68
Illuminated
Abnormal message from EPS CM
×
Not applicable
C
×
(See DTC U0420:68 [LASER SENSOR].)
U0423:68
Illuminated
Abnormal message from instrument cluster
×
Not applicable
C
×
(See DTC U0423:68 [LASER SENSOR].)
U1A14:49
Illuminated
Laser sensor
×
Not applicable
C
×
(See DTC U1A14:49 [LASER SENSOR].)
U2300:55
Illuminated
Configuration data not recorded or data error
×
Not applicable
C
×
(See DTC U2300:55/U2300:56 [LASER SENSOR].)
U2300:56
U3000:00
Illuminated
Laser sensor (internal malfunction)
×
Not applicable
C
×
(See DTC U3000:00/U3000:64 [LASER SENSOR].)
U3000:64
U3000:66
Illuminated
Laser sensor
×
Not applicable
C
×
(See DTC U3000:66 [LASER SENSOR].)

*  :C: CMDTC self-test

PID/DATA Monitor Table

PID name (definition)

Unit/Condition

Operation condition (reference)

Action
DIST_BMP_TGT
m
Changes according to the distance from bumper to target that the laser sensor has detected
Perform the DTC inspection for the laser sensor.
(See Reading DTCs Procedure.)
VPWR_IG1
V
Module supply voltage (IG1)
Inspect the battery.
(See BATTERY INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See BATTERY INSPECTION [MZR 1.6].)
(See BATTERY INSPECTION [SKYACTIV-D 1.5].)
(See BATTERY INSPECTION [SKYACTIV-D 2.2].)
Inspect the push button start.
(See PUSH BUTTON START INSPECTION.)
VSPD
KPH, MPH
Vehicle speed
Inspect the DSC HU/CM.
(See DSC HU/CM INSPECTION.)


Snapshot Data Table

Note
•  The laser sensor stores the following two types of information when a DTC is detected and displays snap shot data in the M-MDS.
―  Vehicle information detected by laser sensor
―  Vehicle information detected by instrument cluster and received by start stop unit via CAN signal
•  Refer to PID monitor table for confirm the laser sensor operation status while the laser sensor does not store the DTC. (See PID/DATA Monitor Table.)
•  Snapshot data items are not displayed, according to detected DTC.

Snapshot data item

Unit

Data contents

Data read/use method

Corresponding data monitor items
DSC_R_BRK
OK/Error
DSC response against brake request from SCBS module
Not applicable
Not applicable
DSC_R_BRK_C
OK/Error
DSC response against brake assist threshold change from SCBS module
Not applicable
Not applicable
DSC_R_NOREQ
OK/Error
DSC response while no request from SCBS module
Not applicable
Not applicable
DSC_R_PRECH
OK/Error
DSC response against pre-charge request from SCBS module
Not applicable
Not applicable
DSC_SYSTEM
OK/Error
DSC system condition
Not applicable
Not applicable
ECU_IN_TEMP
°C
ECU internal temperature
Not applicable
Not applicable
PCM_R_NOREQ
OK/Error
PCM response while no request from SCBS module
Not applicable
Not applicable
PCM_R_REQ
OK/Error
PCM response against request from SCBS module
Not applicable
Not applicable
PCM_SYSTEM
OK/Error
PCM system condition
Not applicable
Not applicable
TOTAL_DIST
km/miles
Accumulated total traveled distance from completion of vehicle until laser sensor detects DTC (Odometer value in instrument cluster)
The distance traveled when the laser sensor detected a DTC can be calculated by performing the following procedure.
1.  Verify the odometer value in the instrument cluster.
2.  Verify the snap shot data item TOTAL_DIST.
3.  Subtract 2 from 1.
Not applicable
TOTAL_TIME
hh:mm:ss*1
Accumulated total elapsed time since vehicle completion until laser sensor 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 when the laser sensor detected a DTC can be calculated by performing the following procedure.
1.  Verify the PID item TOTAL_TIME of the instrument cluster.
2.  Verify the snap shot data item TOTAL_TIME.
3.  Subtract 2 from 1.
TOTAL_TIME*2
VPWR
V
Power supply
Not applicable
Not applicable
VSPD
KPH, MPH
Vehicle speed
Not applicable
VSPD

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