Function Check - Subaru 2009 IMPREZA Service Manual

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.
Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed
Steering Angle Sensor Op
Yaw Rate Sensor Output
Pressure Sensor Output
Lateral G sensor Output
IG power supply voltage
E/G Control Stop Flag
ABS Control Flag
EBD Control Flag
TCS Control Flag
VDC Control Flag
OFF Lamp
EBD Warning Light
ABS Warning Light
VDC Warning Light
Valve Relay Signal
Motor Relay Signal
M. Relay monitor Voltage
OFF SW Signal
Brake Switch
Longitudinal G sensor output
Clutch Switch
Reverse Signal
NOTE:
For details concerning the operation procedure, refer to "PC application help for Subaru Select Monitor".

3. FUNCTION CHECK

Display
ABS Sequence Control
Mode
VDC Check Mode
Set mode Str.
A.Sen.N&Lat.GSen.0p
Subaru Select Monitor
Contents to be monitored
Wheel speed detected by front ABS wheel speed sensor RH is displayed.
Wheel speed detected by front ABS wheel speed sensor LH is displayed.
Wheel speed detected by rear ABS wheel speed sensor RH is displayed.
Wheel speed detected by rear ABS wheel speed sensor LH is displayed.
Steering angle detected by steering angle sensor is displayed.
Vehicle angular speed detected by yaw rate sensor is displayed.
Brake fluid pressure detected by pressure sensor is displayed.
Vehicle lateral acceleration detected by lateral G sensor is displayed.
Voltage supplied to VDCCM&H/U is displayed.
Engine control command signal is displayed.
ABS operation condition is displayed.
EBD operation condition is displayed.
TCS operation condition is displayed.
VDC operation condition is displayed.
ON/OFF condition of VDC OFF indicator light is displayed.
ON operation of the EBD warning light is displayed.
ON operation of the ABS warning light is displayed.
ON operation of the VDC warning light is displayed.
Valve relay operation signal is displayed.
Motor relay operation signal is displayed.
Voltage applied to the motor relay is displayed.
Operation condition of VDC OFF switch is displayed.
Brake ON/OFF is displayed.
Vehicle longitudinal acceleration detected by longitudinal G sensor is dis-
played.
(For MT vehicle only. For AT vehicle: At –0.1 m/s
Clutch ON/OFF is displayed.
(For MT vehicle only. For AT vehicle: OFF fixed)
Reverse gear ON/OFF is displayed.
(For MT vehicle only. For AT vehicle: OFF fixed)
Contents of display
Operate the valve and pump motor continu-
ously to perform the ABS sequence control.
Operate the valve and pump motor continu-
ously to perform the VDC sequence control.
Set the steering angle sensor neutral position
and the lateral G sensor "0" point.
VDC(diag)-16
2
constantly)
Index No.
<Ref. to ABS-10, ABS Sequence Control.>
<Ref. to VDC-13, VDC Sequence Control.>
<Ref. to VDC-18, Steering Angle Sensor.>
Unit of measure
km/h or MPH
km/h or MPH
km/h or MPH
km/h or MPH
deg
deg/s
bar
2
m/s (m/s )
V
1 or 0
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
V
ON or OFF
ON or OFF
2
m/s
ON or OFF
ON or OFF