Inspection steps

CAUTION:

When the skid control computer (brake actuator Assembly) has been replaced, make sure to perform [VDC sensor mid point setting mode]. (Refer to WORK SUPPORT )
Before performing troubleshooting, check the fuse for this circuit.

Diagnostic code check (CAN communication system)

Check CAN communication system. (Refer to HOW TO TROUBLESHOOT )

RESULT

Result	Go to
No output	A
Output exists	B

B: To CAN communication system (How to troubleshoot) (Refer to HOW TO TROUBLESHOOT )

A: Go to Next Step

Check wiring harness and connector (+BS, IG1, GND1, GND2 terminals)

Check the connector of the skid control computer (brake actuator Assembly) for a trouble such as poor engagement or disconnection.
Criteria: No trouble
Turn IG OFF and disconnect the connector A5 from the skid control computer (brake actuator Assembly).
Check the case and terminal of the connector for deformation and/or corrosion.
Criteria: No deformation or corrosion.

Check the voltage and resistance between terminals.

VOLTAGE

Inspection terminals	Inspection conditions	Standard value
A5-25(+BS) - chassis ground	Always	11 to 14 V
A5-28(IG1) - chassis ground	IG ON	11 to 14 V

RESISTANCE

Inspection terminals	Inspection conditions	Standard value
A5-38(GND1) - chassis ground	Always	Less than 1 Ω
A5-13(GND2) - chassis ground	Always	Less than 1 Ω

Fig 1: Identifying Skid Control Computer (Brake Actuator Assembly) Connector Terminals

Courtesy of SUBARU OF AMERICA, INC.

NOTE: If there is a malfunction in GND1 and GND2 terminals, check the ground point for looseness.

NG: Repair or replacement of wiring harness or connector

OK: To meter & gauge system (How to troubleshoot) (Refer to HOW TO TROUBLESHOOT )