Subaru IMPREZA GD 2007 Series Manual page 3141

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ABS (DIAGNOSTICS)
Description
Front LH wheel
Front RH wheel
ABS wheel speed
sensor
(Wheel speed sensor)
Rear LH wheel
Rear RH wheel
CAN communication line (+)
CAN communication line (–)
Valve relay power supply *1
Motor relay power supply *1
Power supply
G sensor Ground
Output
Stop light switch *1
ABS warning light
Brake warning light (EBD warning light)
Subaru Select Monitor
Power supply *1
Grounding line
Grounding line
*1: Measure the I/O signal voltage after removing the connector from the ABSCM&H/U terminal.
Control Module I/O Signal
Terminal
No.
(+) — (–)
GND 16
Signal 1 — 16
GND 5
Signal 6 — 5
GND 2
Signal 3 — 2
GND 4
Signal 19 — 4
26
11
14 — 15
13 — 15
24 — 10
10
21 — 10 2.1 — 2.5 V when the vehicle is on level surface
1.5 V or less when the stop light is OFF; otherwise,
20 — 15
After turning the ignition switch to ON, 10 — 15 V during
22 — 15
1.5 seconds and 1.5 V or less after 1.5 seconds passed.
After turning the ignition switch to ON, 10 — 15 V during
8 — 15
1.5 seconds and 1.5 V or less after 1.5 seconds passed.
7 — 15
18 — 15
12
15
ABS(diag)-12
Input/Output signal
Measured value and measuring conditions
—
0.12 — 1 V (at 20 Hz)
—
0.12 — 1 V (at 20 Hz)
—
0.12 — 1 V (at 20 Hz)
—
0.12 — 1 V (at 20 Hz)
2.5 — 1.5 V pulse signal
3.5 — 2.5 V pulse signal
10 — 15 V
10 — 15 V
4.75 — 5.25 V
—
10 — 15 V when the stop light is ON.
1.5 V or less when no data is received.
0 ←→ 12 V pulse (in communication)
10 — 15 V when the ignition switch is ON.
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