Electrical Specification

Fig 1: Identifying Control Module Connector

Courtesy of SUBARU OF AMERICA, INC.

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.

CONTROL MODULE TERMINAL REFERENCE

Description

Terminal No. (+)-(-)

Input/Output signal

Measured value and measuring conditions

ABS wheel speed sensor (Wheel speed sensor)

Front LH wheel

Power supply

16 - 15

4.5 - 16.5 V

Signal

5.9 - 16.8 mA: Rectangle waveform

Front RH wheel

Power supply

5 - 15

4.5 - 16.5 V

Signal

5.9 - 16.8 mA: Rectangle waveform

Rear LH wheel

Power supply

2 - 15

4.5 - 16.5 V

Signal

5.9 - 16.8 mA: Rectangle waveform

Rear RH wheel

Power supply

3 - 15

4.5 - 16.5 V

Signal

5.9 - 16.8 mA: Rectangle waveform

CAN communication line (+)

2.5 - 1.5 V pulse signal

CAN communication line (-)

3.5 - 2.5 V pulse signal

Valve relay power supply ⁽¹⁾

14 - 15

10 - 15V

Motor relay power supply ⁽¹⁾

13 - 15

10 - 15V

G sensor

Power supply

24 - 10

4.75 - 5.25 V

Ground

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.

ABS warning light

22 - 15

After turning the ignition switch to ON, 10 - 15 V during 1.5 seconds and 1.5 V or less after 1.5 seconds passed.

Brake warning light (EBD warning light)

8 - 15

After turning the ignition switch to ON, 10 - 15 V during 1.5 seconds and 1.5 V or less after 1.5 seconds passed.

Subaru Select Monitor

7 - 15

1.5 V or less when no data is received. 0 ↔ 12 V pulse (in communication)

Power supply ⁽¹⁾

18 - 15

10 - 15V when the ignition switch is ON.

Grounding line

Vehicle speed output signal

23 - 15

0 ↔ 5 V pulse

⁽¹⁾	Measure the I/O signal voltage after removing the connector from the ABSCM&H/U terminal.