VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS) > Subaru Select Monitor

OPERATION

1. READ DIAGNOSTIC TROUBLE CODE (DTC)

1. Prepare the Subaru Select Monitor kit.

2. Prepare PC with Subaru Select Monitor installed.

3. Connect the SDI (Subaru Diagnostic Interface) to the PC USB port (exclusively for Subaru Selector Monitor) using a USB cable.

NOTE:

Port exclusively for Subaru Select Monitor refers to the USB port used when installing Subaru Select Monitor.

4. Connect the diagnosis cable to the SDI.

5. Connect the SDI to the data link connector located in the lower portion of the instrument panel (on the driver’s side).

CAUTION:

Do not connect the scan tools other than the Subaru Select Monitor.

6. Start the PC.

7. Turn the ignition switch to ON (engine OFF) and run the “PC application for Subaru Select Monitor”.

8. On the «Main Menu», select {Each System Check}.

9. On the «System Selection Menu», select {Brake Control}.

10. Click the [OK] button after the {VDC} is displayed.

11. On the «Brake Control Diagnosis» screen, select {DTC Display}.

12. Record the DTC and data.

NOTE:

• For detailed operation procedure, refer to the “PC application help for Subaru Select Monitor”.

• For details concerning DTCs, refer to “List of Diagnostic Trouble Code (DTC)”.

• Up to 3 DTCs are displayed in the order of detection.

• If a particular DTC is not stored in memory properly at the occurrence of problem (due to a drop in VDCCM&H/U power supply etc.), the DTC suffixed with a question mark “?” is displayed on Subaru Select Monitor display screen. This shows it may be an unreliable reading.

13. If VDC and Subaru Select Monitor cannot communicate, check the communication circuit.

Display

Contents to be monitored

Current

The current DTC is displayed on Subaru Select Monitor display screen.

Old

The latest DTC in previous troubles is displayed on Subaru Select Monitor display screen.

Older

The second latest DTC in previous troubles is displayed on Subaru Select Monitor display screen.

Before 3

The third latest DTC in previous problems is displayed on Subaru Select Monitor display screen.

2. READ CURRENT DATA

1. On the «Main Menu» display, select {Each System Check}.

2. On the «System Selection Menu», select {Brake Control}.

3. Click the [OK] button after the {VDC} is displayed.

4. On the «Brake Control Diagnosis» screen, select {Current Data Display & Save}.

5. On the «Data Display Menu», select the data display method.

6. Using the scroll key, scroll the display screen up or down until necessary data is shown.

• A list of the support data is shown in the following table.

Display

Contents to be monitored

Unit of measure

FR Wheel Speed

Wheel speed detected by front ABS wheel speed sensor RH is displayed.

km/h or MPH

FL Wheel Speed

Wheel speed detected by front ABS wheel speed sensor LH is displayed.

km/h or MPH

RR Wheel Speed

Wheel speed detected by rear ABS wheel speed sensor RH is displayed.

km/h or MPH

RL Wheel Speed

Wheel speed detected by rear ABS wheel speed sensor LH is displayed.

km/h or MPH

Steering Angle Sensor Malfunction

Steering angle detected by steering angle sensor is displayed.

deg

Abnormal Yaw Rate Sensor Output

Vehicle angular speed detected by yaw rate sensor is displayed.

deg/s

Pressure Sensor Output

Brake fluid pressure detected by pressure sensor is displayed.

bar

Abnormal Lateral G Sensor Output

Vehicle lateral acceleration detected by lateral G sensor is displayed.

m/s (m/s2)

ABS_CM Power Voltage

Voltage supplied to VDCCM&H/U is displayed.

V

E/G Control Stop Flag

Engine control command signal is displayed.

1 or 0

ABS Control Flag

ABS operation condition is displayed.

ON or OFF

EBD Control Flag

EBD operation condition is displayed.

ON or OFF

TCS Control Flag

TCS operation condition is displayed.

ON or OFF

VDC Control Flag

VDC operation condition is displayed.

ON or OFF

OFF Lamp

ON/OFF condition of VDC OFF indicator light is displayed.

ON or OFF

EBD Warning Light

ON operation of the EBD warning light is displayed.

ON or OFF

ABS Warning Light

ON operation of the ABS warning light is displayed.

ON or OFF

VDC Warning Light

ON operation of the VDC warning light is displayed.

ON or OFF

Valve Relay Signal

Valve relay operation signal is displayed.

ON or OFF

Motor Relay Signal

Motor relay operation signal is displayed.

ON or OFF

M. Relay monitor Voltage

The voltage applied to the motor relay is displayed.

V

OFF SW Signal

Operation condition of VDC OFF switch is displayed.

ON or OFF

Brake Switch

Brake ON/OFF is displayed.

ON or OFF

Fr Rr G sensor Output

Vehicle longitudinal acceleration detected by longitudinal G sensor is displayed. (For MT vehicle only. For AT vehicle: At −0.1 m/s2 constantly)

m/s2

Clutch Switch

Clutch ON/OFF is displayed. (For MT vehicle only. For AT vehicle: OFF fixed)

ON or OFF

Reverse Signal

Reverse gear ON/OFF is displayed. (For MT vehicle only. For AT vehicle: OFF fixed)

ON or OFF

NOTE:

For details concerning the operation procedure, refer to the “PC application help for Subaru Select Monitor”.

3. CLEAR MEMORY MODE

1. On the «Main Menu», select {Each System Check}.

2. On the «System Selection Menu», select {Brake Control}.

3. Click the [OK] button after the {VDC} is displayed.

4. On the «Brake Control Diagnosis», select {Clear Memory}.

5. When the “Clear Memory?” is shown on the screen, click the “YES” button.

6. When “Done” and “Turn ignition switch to OFF” are shown on the display screen, turn the ignition switch to OFF.

NOTE:

For detailed operation procedure, refer to the “PC application help for Subaru Select Monitor”.

4. FUNCTION CHECK

Display

Contents of display

Index No.

ABS Sequence Control Mode

Operate the valve and pump motor continuously to perform the ABS sequence control.

VDC Check Mode

Operate the valve and pump motor continuously to perform the VDC sequence control.

Set mode Str.A.Sen.N&Lat.GSen.0p

Set the steering angle sensor neutral position and the lateral G sensor “0” point.

5. FREEZE FRAME DATA

NOTE:

• Data stored at the time of trouble occurrence is shown on the display.

• Each time a trouble occurs, the latest information is stored in the freeze frame data in memory.

• If a freeze frame data is not properly stored in memory (due to a drop in VDCCM power supply, etc.), a DTC suffixed with a question mark “?” appears on the Subaru Select Monitor display. This shows it may be an unreliable reading.

Display

Contents to be monitored

Steering Angle Sensor Malfunction

Steering angle detected by steering angle sensor is displayed.

Abnormal Yaw Rate Sensor Output

Vehicle angular speed detected by yaw rate sensor is displayed.

Abnormal Lateral G Sensor Output

Vehicle lateral acceleration detected by lateral G sensor is displayed.

Pressure Sensor Output

Brake fluid pressure detected by pressure sensor is displayed.

Vehicle Speed

Vehicle speed calculated by VDC control module is displayed.

FR Wheel Speed

Wheel speed detected by front ABS wheel speed sensor RH is displayed in km/h or MPH.

FL Wheel Speed

Wheel speed detected by front ABS wheel speed sensor LH is displayed in km/h or MPH.

RR Wheel Speed

Wheel speed detected by rear ABS wheel speed sensor RH is displayed in km/h or MPH.

RL Wheel Speed

Wheel speed detected by rear ABS wheel speed sensor LH is displayed in km/h or MPH.

Accel. Opening Angle

Acceleration opening is displayed.

Engine Speed

Engine speed on malfunction occurrence is displayed.

Gear Position

Gear position on malfunction occurrence is displayed.

ABS_CM Power Voltage

Voltage supplied to VDC control module is displayed.

Steering Angle Flag

Whether the absolute angle of the steering angle sensor was determined is displayed.

E/G Control Stop Flag

Engine control command signal is displayed.

VDC Control Flag

VDC control condition is displayed.

EBD Control Flag

EBD control condition is displayed.

TCS Control Flag

TCS control condition is displayed.

ABS Control Flag

ABS control condition is displayed.

OFF Switch Detection

VDC ON/OFF condition by the driver operation is displayed.

Brake Switch

Brake ON/OFF is displayed.

Fr Rr G sensor Output

Vehicle longitudinal acceleration detected by longitudinal G sensor is displayed. (For MT vehicle only. For AT vehicle: At −0.1 m/s2 constantly)

Clutch Switch

Clutch ON/OFF is displayed. (For MT vehicle only. For AT vehicle: OFF fixed)

Reverse Signal

Reverse gear ON/OFF is displayed. (For MT vehicle only. For AT vehicle: OFF fixed)

6. SELECT PARAMETER

CAUTION:

• Subaru Select Monitor is required for parameter selection.

• This function can be used for the replacement part of VDCCM&H/U and VDCCM.

NOTE:

• When the VDCCM is replaced with a replacement part, be sure to perform the parameter selection/registration to the VDCCM using this function.

• To confirm the applied model, refer to the “model number plate” attached on the vehicle.

• When the applied model is entered wrong, re-entry is possible.

• When the registration has not been performed, the DTC code “Parameter selection error” is detected together with the ABS/EBD/VDC warning light illumination.

1. Connect the Subaru Select Monitor.

2. On the «Main Menu» display, select {Each System Check}.

3. On the «System Selection Menu», select {Brake Control}.

4. Click the [OK] button after the {VDC} is displayed.

5. On the «Brake Control Diagnosis», select {Parameter Selection}.

6. Check the applied model indicated in the “Model number plate”.

7. Enter the applied model of 7-digit alphanumeric characters and press the [Enter] key.

8. When the confirmation screen indicating the vehicle information appears, check that the correct applied model and grade are displayed and click the [OK] button.

NOTE:

When the displayed applied model and grade are different from those of the vehicle, perform registration operations again after clicking the [OK] button.

9. Execute Clear Memory after parameter selection and registration operations because the DTC for “Parameter selection failure” is memorized.

7. CONFIRM PARAMETER

NOTE:

The parameter data registered in the VDCCM is shown on the display.

1. Connect the Subaru Select Monitor.

2. On the «Main Menu» display, select {Each System Check}.

3. On the «System Selection Menu», select {Brake Control}.

4. Click the [OK] button after the {VDC} is displayed.

5. On the «Brake Control Diagnosis», select {Confirm on parameter}.

6. On the {Confirm on parameter} display screen, check that the applied model and grade of the target vehicle are included, and click the [OK] button.

7. If the applied model and grade of the target vehicle are not included on the {Confirm on parameter} display screen, perform parameter selection and registration.