Subaru 2009 IMPREZA, Service Manual

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VDC(diag)-16
Subaru Select Monitor
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
2. READ CURRENT DATA
1) On «Main Menu» display, select {Each System Check}.
2) On «System Selection Menu» display, select {Brake Control System}.
3) Click the [OK] button after {VDC} is displayed.
4) On «Brake Control Diagnosis» display, select {Current Data Display & Save}.
5) On «Data Display Menu» display, 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.
NOTE:
For details concerning the operation procedure, refer to “PC application help for Subaru Select Monitor”.
3. FUNCTION CHECK
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 Op Steering angle detected by steering angle sensor is displayed. deg
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
Lateral G sensor Output Vehicle lateral acceleration detected by lateral G sensor is displayed. m/s (m/s
2
)
IG power supply 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 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
Longitudinal G sensor output
Vehicle longitudinal acceleration detected by longitudinal G sensor is dis-
played.
(For MT vehicle only. For AT vehicle: At –0.1 m/s
2
constantly)
m/s
2
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
Display Contents of display Index No.
ABS Sequence Control
Mode Operate the valve and pump motor continu-
ously to perform the ABS sequence control.
<Ref. to ABS-10, ABS Sequence Control.>
VDC Check Mode
Operate the valve and pump motor continu-
ously to perform the VDC sequence control.
<Ref. to VDC-13, 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.
<Ref. to VDC-18, Steering Angle Sensor.>