Check Hydraulic Unit VDC Operation With Brake Tester

Set the wheels other than the measured one on free rollers.
Prepare for operating the VDC sequence control.
< Ref. to , VDC Sequence Control . >
Set the front wheels or rear wheels on the brake tester and set the select lever position to "N" range.

Fig 1: Setting Front Wheels On Brake Tester
Courtesy of SUBARU OF AMERICA, INC.

Fig 2: Setting Rear Wheels On Brake Tester
Courtesy of SUBARU OF AMERICA, INC.
Operate the brake tester.
Perform VDC sequence control.
< Ref. to , VDC Sequence Control . >
When the hydraulic unit begins to work; check the following working sequence.
1. The FL wheel performs compression, holding and decompression in sequence, and subsequently the FR wheel repeats the cycle.
2. The RR wheel performs compression, holding and decompression in sequence, and subsequently the RL wheel repeats the cycle.

Read values indicated on the brake tester and check if the fluctuation of the values between decompression and compression meets the standard values.

FRONT AND REAR WHEEL PRESSURE SPECIFICATIONS

	Front wheel	Rear wheel
When compressed	2,000 N (203 kgf, 447 lb) or more	1,000 N (102 kgf, 225 lb) or more
When decompressed	500 N (51 kgf, 112 lb) or less	500 N (51 kgf, 112 lb) or less

After the inspection, depress the brake pedal and check that it is not abnormally hard, and tightness is normal.