Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 530
VDC(diag)-19
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) When {VDC} is displayed, select the [OK] button.
4) On «Brake Control Diagnosis» display, select {Current Data Display & Save}.
5) 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 detailed operation procedures, refer to “PC application help for Subaru Select Monitor”.
Display
Contents to be displayed
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
Steer 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
2
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 & VDC traction mode indicator light (6MT model)
or VDC OFF indicator light (5MT model) 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 driving signal is displayed.
ON or OFF
Motor Relay Signal
Motor relay driving 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 Signal
Brake ON/OFF is displayed.
ON or OFF
Fr Rr G sensor Output
Vehicle longitudinal acceleration detected by longitudinal G sensor is displayed.
m/s
2
Clutch Signal
Clutch ON/OFF is displayed.
ON or OFF
Reverse Signal
Reverse gear ON/OFF is displayed.
ON or OFF
VDC(diag)-20
Subaru Select Monitor
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
3. FUNCTION CHECK
4. FREEZE FRAME DATA
NOTE:
• Data stored at the time of trouble occurrence is shown on 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 of display
Index No.
ABS Sequence Control Mode Operate the valve and pump motor continuously
to perform the ABS sequence control.
<Ref. to VDC-14, ABS Sequence Control.>
VDC Check Mode
Operate the valve and pump motor continuously
to perform the VDC sequence control.
<Ref. to VDC-17, VDC Sequence Control.>
Set up mode for Neutral of
Steering Angle Sensor & Lat-
eral G Sensor 0 point
Set the steering angle sensor neutral position
and the lateral G sensor “0” point.
<Ref. to VDC-22, Steering Angle Sensor.>
Display
Contents to be displayed
Steer Angle
Sensor Op
Steering angle detected by steering
angle sensor is displayed.
Yaw Rate Sen-
sor Output
Vehicle angular speed detected by yaw
rate sensor is displayed.
Lateral G sen-
sor Output
Vehicle lateral acceleration detected by
lateral G sensor is displayed.
Pressure Sen-
sor Output
Brake fluid pressure detected by pres-
sure 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 occur-
rence 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 steer-
ing angle sensor was determined is dis-
played.
E/G Control
Stop Flag
Engine control command signal is dis-
played.
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
ON/OFF condition of the VDC operated
by the driver is displayed.
Brake Switch
Signal
Brake ON/OFF is displayed.
Fr Rr G sensor
Output
Vehicle longitudinal acceleration
detected by longitudinal G sensor is dis-
played.
Clutch Signal
Clutch ON/OFF is displayed.
Reverse Signal
Reverse gear ON/OFF is displayed.
Display
Contents to be displayed
VDC(diag)-21
Subaru Select Monitor
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
5. PARAMETER SELECTION
CAUTION:
• Subaru Select Monitor is required for param-
eter selection.
• This function can be used for the replace-
ment part of VDCCM&H/U and VDCCM.
NOTE:
• When the VDCCM is replaced with a replace-
ment part, be sure to perform the parameter selec-
tion/registration to the VDCCM using this function.
• For confirmation of applied models, refer to the
“Model number plate” attached to the vehicles.
<Ref. to ID-2, IDENTIFICATION, Identification.>
• When the applied model is entered wrong, re-en-
try is possible.
• When the registration has not been performed,
the DTC code “Parameter selection error” is detect-
ed together with the ABS/EBD/VDC warning light il-
lumination.
1) Connect the Subaru Select Monitor.
2) On «Main Menu» display, select {Each System
Check}.
3) On «System Selection Menu» display, select
{Brake Control System}.
4) When {VDC} is displayed, select the [OK] button.
5) On «Brake Control Diagnosis» display, select
{Select Parameter}.
6) Check the applied model and option code indi-
cated in the “Model number plate”. <Ref. to ID-2,
IDENTIFICATION, Identification.>
7) Enter the applied model of 7-digit alphanumeric
characters and press the [Enter] key.
8) When the option code input screen appears after
entering the applied model, enter the option code
consisting of 4-digit alphanumeric characters, and
press the [Enter] key When the option code is 3 dig-
its, add “0” in front and enter the code as 4 digits.
9) When the confirmation screen indicating the ve-
hicle 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 registra-
tion operations again after clicking the [OK] button.
10) Execute Clear Memory after parameter selec-
tion and registration operations because the DTC
for “Parameter selection error” is memorized.
6. PARAMETER CHECK
NOTE:
The parameter data registered in the VDCCM is
shown on the display.
1) Connect the Subaru Select Monitor.
2) On «Main Menu» display, select {Each System
Check}.
3) On «System Selection Menu» display, select
{Brake Control System}.
4) Click the [OK] button after {VDC} is displayed.
5) On «Brake Control Diagnosis» display, select
{Confirm on parameter}.
6) On the {Confirm on parameter} display screen,
check that the applied model and grade of the tar-
get vehicle are included, and click the [OK] button.
7) If the applied model and grade of the target ve-
hicle are not included on the {Confirm on parame-
ter} display screen, perform parameter selection
and registration. <Ref. to VDC(diag)-21, PARAME-
VDC(diag)-22
Subaru Select Monitor
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
B: INSPECTION
1. COMMUNICATION FOR INITIALIZING IMPOSSIBLE
DETECTING CONDITION:
Defective harness connector
TROUBLE SYMPTOM:
Communication is impossible between VDC and Subaru Select Monitor.
WIRING DIAGRAM:
Vehicle Dynamics Control System <Ref. to WI-67, Vehicle Dynamics Control System.>
Step
Check
Yes
No
1
CHECK IGNITION SWITCH.
Is the ignition switch ON?
Turn the ignition
switch to ON, and
select VDC mode
using Subaru
Select Monitor.
2
CHECK BATTERY.
1) Turn the ignition switch to OFF.
2) Measure the battery voltage.
Is the voltage 11 V or more?
Charge or replace
the battery.
7
2
8
MAIN SBF
SBF-6
F/B
No.33
M/B No.13
B310 VDCCM & H/U
E
25
B40
7
16
E
B310
4 5 6 7 8 9
26 27 28 29 30
2 3
1
31 32 33 34 35 36
10 11
14 15 16 17 18 19
37 38 39 40
12 13
41 42 43 44 45 46
20 21
23 24
22
25
VDC00547
B40
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
B440
B440
B441
B441
22
1 2 3 4 5
BATTERY
DATA LINK
CONNECTOR
IGNITION
SWITCH
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст