ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)]

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On-Board Diagnostic (OBD) Test Description

•  The OBD test inspects the integrity and function of the DSC and outputs the results when requested by the specific tests.
•  On-board diagnostic test also:
―  Provides a quick inspection of the DSC 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 DSC HU/CM memory.


PID/Data monitor and record

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


Active command modes

•  This function allows you to control devices through the M-MDS.


Reading DTCs Procedure

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select “Self Test”.
2.  Select “Modules”.
3.  Select “ABS”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “ABS”.
3.  Select “Self Test”.

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 DSC. (See Clearing DTCs Procedures.)


Clearing DTCs Procedures

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select “Self Test”.
2.  Select “Modules”.
3.  Select “ABS”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “ABS”.
3.  Select “Self Test”.

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 to off.

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

7.  Press the retest button on the DTC screen.

8.  Verify that no DTCs are displayed.


PID/Data Monitor and Record Procedure

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select “DataLogger”.
2.  Select “Modules”.
3.  Select “ABS”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “ABS”.
3.  Select “DataLogger”.

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.

Active Command Modes Procedure

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select “DataLogger”.
2.  Select “Modules”.
3.  Select “ABS”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “ABS”.
3.  Select “DataLogger”.

3.  Select the active command modes from the PID table.

4.  Perform the active command modes, inspect the operations for each parts.

•  If the operation of output parts cannot be verified after the active command mode inspection is performed, this could indicate the possibility of an open or short circuit, sticking, or operation malfunction in the output parts.


DTC Table

DTC

System malfunction location

Page

M-MDS
C0001:01
DSC HU/CM internal malfunction (linear control solenoid valve)
(See DTC C0001:01/C0003:01/C0010:01/C0011:01/C0014:01/C0015:01/C0018:01/C0019:01/C001C:01/C001D:01 [DYNAMIC STABILITY CONTROL (DSC)].)
C0003:01
DSC HU/CM internal malfunction (linear control solenoid valve)
C0010:01
DSC HU/CM internal malfunction (LF inlet solenoid)
(See DTC C0001:01/C0003:01/C0010:01/C0011:01/C0014:01/C0015:01/C0018:01/C0019:01/C001C:01/C001D:01 [DYNAMIC STABILITY CONTROL (DSC)].)
C0011:01
DSC HU/CM internal malfunction (LF outlet solenoid)
C0014:01
DSC HU/CM internal malfunction (RF inlet solenoid)
C0015:01
DSC HU/CM internal malfunction (RF outlet solenoid)
C0018:01
DSC HU/CM internal malfunction (LR inlet solenoid)
C0019:01
DSC HU/CM internal malfunction (LR outlet solenoid)
C001C:01
DSC HU/CM internal malfunction (RR inlet solenoid)
C001D:01
DSC HU/CM internal malfunction (RR outlet solenoid)
C0020:01
Pump motor, motor relay
(See DTC C0020:01/C0020:11/C0020:13/C0020:16/C0020:1C/C0020:71 [DYNAMIC STABILITY CONTROL (DSC)].)
C0020:11
Pump motor, motor relay
C0020:13
Pump motor, motor relay
C0020:16
Pump motor, motor relay
C0020:1C
Pump motor, motor relay
C0020:71
Pump motor, motor relay
C0031:01
LF ABS wheel speed sensor
(See DTC C0031:01/C0031:13/C0034:01/C0034:13/C0037:01/C0037:13/C003A:01/C003A:13 [DYNAMIC STABILITY CONTROL (DSC)].)
C0031:13
C0031:23
LF ABS wheel-speed sensor/ABS sensor rotor
(See DTC C0031:23/C0031:27/C0031:62/C0034:23/C0034:27/C0034:62/C0037:23/C0037:27/C0037:62/C003A:23/C003A:27/C003A:62 [DYNAMIC STABILITY CONTROL (DSC)].)
C0031:27
C0031:62
C0034:01
RF ABS wheel speed sensor
(See DTC C0031:01/C0031:13/C0034:01/C0034:13/C0037:01/C0037:13/C003A:01/C003A:13 [DYNAMIC STABILITY CONTROL (DSC)].)
C0034:13
C0034:23
RF ABS wheel-speed sensor/ABS sensor rotor
(See DTC C0031:23/C0031:27/C0031:62/C0034:23/C0034:27/C0034:62/C0037:23/C0037:27/C0037:62/C003A:23/C003A:27/C003A:62 [DYNAMIC STABILITY CONTROL (DSC)].)
C0034:27
C0034:62
C0037:01
LR ABS wheel speed sensor
(See DTC C0031:01/C0031:13/C0034:01/C0034:13/C0037:01/C0037:13/C003A:01/C003A:13 [DYNAMIC STABILITY CONTROL (DSC)].)
C0037:13
C0037:23
LR ABS wheel-speed sensor/ABS sensor rotor
(See DTC C0031:23/C0031:27/C0031:62/C0034:23/C0034:27/C0034:62/C0037:23/C0037:27/C0037:62/C003A:23/C003A:27/C003A:62 [DYNAMIC STABILITY CONTROL (DSC)].)
C0037:27
C0037:62
C003A:01
RR ABS wheel speed sensor
(See DTC C0031:01/C0031:13/C0034:01/C0034:13/C0037:01/C0037:13/C003A:01/C003A:13 [DYNAMIC STABILITY CONTROL (DSC)].)
C003A:13
C003A:23
RR ABS wheel-speed sensor/ABS sensor rotor
(See DTC C0031:23/C0031:27/C0031:62/C0034:23/C0034:27/C0034:62/C0037:23/C0037:27/C0037:62/C003A:23/C003A:27/C003A:62 [DYNAMIC STABILITY CONTROL (DSC)].)
C003A:27
C003A:62
C0040:13
Brake switch
(See DTC C0040:13/C0040:64 [DYNAMIC STABILITY CONTROL (DSC)].)
C0040:64
Brake switch
C0044:14
Brake fluid pressure sensor
(See DTC C0044:14/C0044:1C/C0044:65/C0044:66/C0044:67 [DYNAMIC STABILITY CONTROL (DSC)].)
C0044:1C
Brake fluid pressure sensor
C0044:65
Brake fluid pressure sensor
C0044:66
Brake fluid pressure sensor
C0044:67
Brake fluid pressure sensor
C0051:54
Steering angle sensor
(See DTC C0051:54 [DYNAMIC STABILITY CONTROL (DSC)].)
C0062:62
Combined sensor system
(See DTC C0062:62/C0062:65/C0062:84/C0062:8F/C0063:1C/C0063:27/C0063:28/C0063:61/C0063:62 [DYNAMIC STABILITY CONTROL (DSC)].)
C0062:65
Combined sensor system
C0062:84
Combined sensor system
C0062:86
Combined sensor system
(See DTC C0062:86/C0063:86 [DYNAMIC STABILITY CONTROL (DSC)].)
C0062:8F
Combined sensor system
(See DTC C0062:62/C0062:65/C0062:84/C0062:8F/C0063:1C/C0063:27/C0063:28/C0063:61/C0063:62 [DYNAMIC STABILITY CONTROL (DSC)].)
C0063:1C
Combined sensor system
C0063:27
Combined sensor system
C0063:28
Combined sensor system
C0063:61
Combined sensor system
C0063:62
Combined sensor system
C0063:86
Combined sensor system
(See DTC C0062:86/C0063:86 [DYNAMIC STABILITY CONTROL (DSC)].)
C1137:64
Reverse signal (MTX)
(See DTC C1137:64 [DYNAMIC STABILITY CONTROL (DSC)].)
C1A77:12
Valve relay
(See DTC C1A77:12/C1A77:13/C1A77:16 [DYNAMIC STABILITY CONTROL (DSC)].)
C1A77:13
C1A77:16
U0001:88
CAN line
(See DTC U0001:88/U0100:00/U0101:00/U0140:00/U0155:00/U0214:00 [DYNAMIC STABILITY CONTROL (DSC)].)
U0100:00
CAN line
U0101:00
CAN line
U0123:00
Combined sensor system (CAN2 line malfunction)
(See DTC U0123:00/U0124:00 [DYNAMIC STABILITY CONTROL (DSC)].)
U0124:00
Combined sensor system (CAN2 line malfunction)
U0140:00
CAN line
(See DTC U0001:88/U0100:00/U0101:00/U0140:00/U0155:00/U0214:00 [DYNAMIC STABILITY CONTROL (DSC)].)
U0155:00
CAN line
U0214:00
CAN line
U0401:00
Abnormal message from PCM
(See DTC U0401:00/U0401:68 [DYNAMIC STABILITY CONTROL (DSC)].)
U0401:68
Abnormal message from PCM
U0402:00
Abnormal message from TCM (ATX)
(See DTC U0402:00 [DYNAMIC STABILITY CONTROL (DSC)].)
U0422:00
Steering angle sensor
(See DTC U0422:00/U0422:28/U0422:64/U0422:86 [DYNAMIC STABILITY CONTROL (DSC)].)
U0422:28
U0422:64
U0422:86
U0423:29
Brake fluid level sensor
(See DTC U0423:29/U0423:7B [DYNAMIC STABILITY CONTROL (DSC)].)
U0423:7B
U2100:00
Module configuration
(See DTC U2100:00 [DYNAMIC STABILITY CONTROL (DSC)].)
U3000:4A
DSC unit mismatched installation
(See DTC U3000:4A [DYNAMIC STABILITY CONTROL (DSC)].)
U3000:96
DSC HU/CM (internal malfunction)
(See DTC U3000:96 [DYNAMIC STABILITY CONTROL (DSC)].)
U3003:16
Power supply system
(See DTC U3003:16/U3003:17/U3003:1C [DYNAMIC STABILITY CONTROL (DSC)].)
U3003:17
Power supply system
U3003:1C
Power supply system


PID/DATA Monitor Table

PID name (definition)

Unit/Condition

Operation condition (reference)

Action

DSC HU/CM terminal
BRAKE_SW
On/Off
•  Brake pedal depressed: On
•  Brake pedal released: Off
Inspect the brake switch.
(See BRAKE SWITCH INSPECTION.)
C
LAT_ACCL
G
•  Vehicle stopped or driving at constant speed: 0 G
•  Cornering to right: Changes 0 G—positive
•  Cornering to left: Changes 0 G—negative
Inspect the combined sensor.
(See COMBINED SENSOR INSPECTION.)
—
MCYLI_P
Pa, psi
•  Brake pedal depressed: Changes according to the brake fluid pressure
Inspect the brake fluid pressure sensor.
(See BRAKE FLUID PRESSURE SENSOR INSPECTION.)
—
PMP_MTR
On/Off
•  Pump motor activated: On
•  Pump motor not activated: Off
Inspect the DSC HU/CM.
(See DSC HU/CM INSPECTION.)
—
STEER_ANGL
°
•  Steering wheel in neutral position (not turned): 0°
•  Steering wheel turned to left: Changes 0°—negative
•  Steering wheel turned to right: Changes 0°—positive
Inspect the steering angle sensor.
—
VPWR
V
•  Switch the ignition to ON: Approx. 12.2 V
•  Idling: Approx. 14.1 V
Inspect power supply circuit.
(See DSC HU/CM INSPECTION.)
AF
V_LF_INL
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
Inspect the DSC HU/CM.
(See DSC HU/CM INSPECTION.)
—
V_LF_OTL
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
—
V_LR_INL
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
—
V_LR_OTL
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
—
V_RF_INL
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
—
V_RF_OTL
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
—
V_RR_INL
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
—
V_RR_OTL
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
—
V_LIN_L
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
Inspect the DSC HU/CM.
(See DSC HU/CM INSPECTION.)
—
V_LIN_R
On/Off
•  Solenoid valve activated: On
•  Solenoid valve not activated: Off
—
YAW_RATE
°/s
•  Vehicle stopped or driving straight: 0 °/s
•  Cornering to left: Changes 0 °/s—negative
•  Cornering to right: Changes 0 °/s—positive
Inspect the combined sensor.
(See COMBINED SENSOR INSPECTION.)
—
WSPD_LF
KPH, MPH
•  Vehicle stopped: 0 KPH, 0 MPH
•  Vehicle running: Vehicle speed
Inspect the ABS wheel-speed sensor.
(See FRONT ABS WHEEL-SPEED SENSOR INSPECTION.)
S, P
WSPD_LR
KPH, MPH
•  Vehicle stopped: 0 KPH, 0 MPH
•  Vehicle running: Vehicle speed
Inspect the ABS wheel-speed sensor.
(See REAR ABS WHEEL-SPEED SENSOR INSPECTION.)
L, I
WSPD_RF
KPH, MPH
•  Vehicle stopped: 0 KPH, 0 MPH
•  Vehicle running: Vehicle speed
Inspect the ABS wheel-speed sensor.
(See FRONT ABS WHEEL-SPEED SENSOR INSPECTION.)
R, O
WSPD_RR
KPH, MPH
•  Vehicle stopped: 0 KPH, 0 MPH
•  Vehicle running: Vehicle speed
Inspect the ABS wheel-speed sensor.
(See REAR ABS WHEEL-SPEED SENSOR INSPECTION.)
M, J


Active Command Modes Table

Command name

Output part

Operation

Operating condition
PMP_MTR
Pump motor
On/Off
Switch the ignition to ON
V_LF_INL
LF inlet solenoid valve
V_LF_OTL
LF outlet solenoid valve
V_LR_INL
LR inlet solenoid valve
V_LR_OTL
LR outlet solenoid valve
V_RF_INL
RF inlet solenoid valve
V_RF_OTL
RF outlet solenoid valve
V_RR_INL
RR inlet solenoid valve
V_RR_OTL
RR outlet solenoid valve
V_LIN_L
Left linear control solenoid valve
V_LIN_R
Right linear control solenoid valve