ABS (DIAGNOSTICS) > Control Module I/O Signal
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(1) |
ABS control module and hydraulic control unit (ABSCM&H/U) connector |
NOTE:
• Terminal numbers in ABSCM&H/U connector are shown in the figure.
• ABS warning light illuminates when the connector is removed from ABSCM&H/U.
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Description |
Terminal No. (+) — (−) |
Input/Output signal | ||
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Measured value and measuring conditions | ||||
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ABS wheel speed sensor (Wheel speed sensor) |
Front LH wheel |
Power supply |
16 — 15 |
4.5 — 16.5 V |
|
Signal |
1 |
5.9 — 16.8 mA: Rectangle waveform | ||
|
Front RH wheel |
Power supply |
5 — 15 |
4.5 — 16.5 V | |
|
Signal |
6 |
5.9 — 16.8 mA: Rectangle waveform | ||
|
Rear LH wheel |
Power supply |
2 — 15 |
4.5 — 16.5 V | |
|
Signal |
17 |
5.9 — 16.8 mA: Rectangle waveform | ||
|
Rear RH wheel |
Power supply |
3 — 15 |
4.5 — 16.5 V | |
|
Signal |
4 |
5.9 — 16.8 mA: Rectangle waveform | ||
|
CAN communication line (+) |
26 |
2.5 — 1.5 V pulse signal | ||
|
CAN communication line (−) |
11 |
3.5 — 2.5 V pulse signal | ||
|
Valve relay power supply *1 |
14 — 15 |
10 — 15 V | ||
|
Motor relay power supply *1 |
13 — 15 |
10 — 15 V | ||
|
G sensor |
Power supply |
24 — 10 |
4.75 — 5.25 V | |
|
Ground |
10 |
— | ||
|
Output |
21 — 10 |
2.1 — 2.5 V when the vehicle is on level surface | ||
|
Stop light switch *1 |
20 — 15 |
1.5 V or less when the stop light is OFF; otherwise, 10 — 15 V when the stop light is ON. | ||
|
Subaru Select Monitor |
7 — 15 |
1.5 V or less when no data is received. 0 ←→ 12 V pulse (in communication) | ||
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Power supply *1 |
18 — 15 |
10 — 15 V when the ignition switch is ON. | ||
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Grounding line |
15 |
— | ||
|
Vehicle speed output signal |
23 — 15 |
0 ←→ 5 V pulse | ||
*1: Measure the I/O signal voltage after disconnecting the connector from the ABSCM&H/U terminal.