Subaru 2006 Legacy, Manual

Page: 4166 / 4302

VDC(diag)-14
Control Module I/O Signal
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Content
Terminal No.
(+) — (–)
Input/Output signal
Measured value and measuring conditions
Power supply 14 — 6 10 — 15 V when the ignition switch is ON.
ABS wheel speed
sensor
Front LH wheel
Power supply 41 — 6 4.5 — 16.5 V
Signal 25 5.9 — 16.8 mA: Rectangle waveform
Front RH wheel
Power supply 22 — 6 4.5 — 16.5 V
Signal 21 5.9 — 16.8 mA: Rectangle waveform
Rear LH wheel
Power supply 24 — 6 4.5 — 16.5 V
Signal 40 5.9 — 16.8 mA: Rectangle waveform
Rear RH wheel
Power supply 23 — 6 4.5 — 16.5 V
Signal 38 5.9 — 16.8 mA: Rectangle waveform
Yaw rate & lateral
G sensor
Output (Lateral G sensor) 3 — 16 When the vehicle is on level surface, 2.35 — 2.65 V,
Power supply 30 — 16 8 — 16 V when the ignition switch is ON.
Output (Yaw rate sensor) 28 — 16
Waveform <Ref. to VDC(diag)-16, WAVEFORM, MEA-
SUREMENT, Control Module I/O Signal.>
Standard (Yaw rate sensor) 1 — 16 2.1 — 2.9 V
Test 2 — 16
5 — 1 V cycle for 40 ms pulse signal. <Ref. to VDC(diag)-
16, WAVEFORM, MEASUREMENT, Control Module I/O
Signal.>
Ground 16 —
CAN communication line (+) 13 2.5 — 1.5 V pulse signal
CAN communication line (–) 29 3.5 — 2.5 V pulse signal
Valve relay power supply 5 — 6 10 — 15 V when the ignition switch is ON.
Motor relay power supply 9 — 10 10 — 15 V when the ignition switch is ON.
Pressure sensor
Power supply 27 — 12 4.75 — 5.25 V when the ignition switch is ON.
Output voltage 11 — 12 0.48 — 0.72 V (when releasing the brake pedal)
Ground 12 —
ABS warning light 35 — 6
After turning the ignition switch to ON, 10 — 15 V during
1.5 seconds and less than 1.5 V after 1.5 seconds
passed.
Brake warning light (EBD warning light) 20 — 6
After turning the ignition switch to ON, 10 — 15 V during
1.5 seconds and less than 1.5 V after 1.5 seconds
passed.
Stop light switch 37 — 6
Less than 1.5 V when the stop light is OFF; otherwise, 10
— 15 V when the stop light is ON.
Subaru Select Monitor 26 — 6 0
←→
12 V pulse (in communication)
Vehicle speed output signal 36 0
←→
5 V pulse
Ground 6 —
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