Subaru Legacy III (2000-2003 year). Service manual — part 745

VDC-16

VDC (DIAGNOSTICS)

CONTROL MODULE I/O SIGNAL

B: SCHEMATIC

(1) VDC control module

(14) Primary suction solenoid valve

(27) BATTERY

(2) Relay box

(15) Primary cut solenoid valve

(28) Front left ABS sensor

(3) Valve relay

(16) Secondary suction solenoid valve

(29) Front right ABS sensor

(4) Motor relay

(17) Secondary cut solenoid valve

(30) Rear left ABS sensor

(5) Hydraulic control unit

(18) Motor

(31) Rear right ABS sensor

(6) Front left inlet solenoid valve

(19) Primary pressure sensor

(32) Yaw rate and lateral G sensor

(7) Front left outlet solenoid valve

(20) Secondary pressure sensor

(33) Engine control module

(8) Front right inlet solenoid valve

(21) VDC OFF switch

(34) Transmission control module

(9) Front right outlet solenoid valve

(22) ABS warning light

(35) Steering angle sensor

(10) Rear left inlet solenoid valve

(23) VDC warning light

(36) Diagnosis connector

(11) Rear left outlet solenoid valve

(24) VDC operating indicator light

(37) Data link connector

(12) Rear right inlet solenoid valve

(25) VDC OFF indicator light

(13) Rear right outlet solenoid valve

(26) Ignition relay

VDC00126

M

VDC-17

VDC (DIAGNOSTICS)

CONTROL MODULE I/O SIGNAL

C: MEASUREMENT

Measure input/output signal voltage.

NOTE:
Measure with the VDCCM connector cover removed. <Ref. to VDC-19, VDCCM Connector Cover.>

1. WAVEFORM

VDC00184

65 - 64

20 ms

(V)

3

2

1

0

5.0 V

2.1 – 2.9 V

0

5

10

( 1 )

( 2 )

67 - 64

( 2 )

( 3 )

(1) Yaw rate sensor

(2) Terminal No.

(3) (When the vehicle is stopped)

VDC-18

VDC (DIAGNOSTICS)

CONTROL MODULE I/O SIGNAL

VDC00185

(V)

4

0

4

0

2.5 V

83-1

81-1

1.5 V

5 ms

3.5 V

2.5 V

( 1 )

( 2 )

( 2 )

(1) Can communication line

(2) Terminal No.

VDC-19

VDC (DIAGNOSTICS)

VDCCM CONNECTOR COVER

6. VDCCM Connector Cover

A: REMOVE

1) Turn ignition switch OFF.
2) Disconnect connector from VDCCM.
3) Remove band.
4) Remove cable clamp cover.
5) Remove screws securing connector cover.

CAUTION:
Do not allow harness to catch on adjacent parts
during installation.

6) Remove connector cover.

B: INSTALLATION

Install in the reverse order of removal.

NOTE:
Align connector cover rib with connector hole be-
fore installation.

(1) Connector cover

(2) Band

(3) Cable clamp cover

VDC00129

( 1 )

( 2 )

( 3 )

VDC00130

(1) Rib

(2) Hole

VDC00131

( 1 )

( 2 )