Checking The VDC Hydraulic Control Module (VDCH/M) VDC Operation With Brake Tester

Prepare for operating the VDC sequence control.
< Ref. to VDC Sequence Control . >
Set the front wheels or rear wheels on brake tester and set the select lever position to "neutral".

Fig 1: Checking VDC Hydraulic Control Module (1 Of 2)
Courtesy of SUBARU OF AMERICA, INC.

Fig 2: Checking VDC Hydraulic Control Module (2 Of 2)
Courtesy of SUBARU OF AMERICA, INC.
Operate the brake tester.
Perform the ABS sequence control. < Ref. to ABS Sequence Control . >
When the VDCH/M begins to work, check the following working sequence.
1. FL wheel performs decompression, holding, and compression in sequence, and subsequently FR wheel repeats the cycle.
2. RR wheel performs decompression, holding, and compression in sequence, and subsequently RL wheel repeats the cycle.

Read values indicated on the brake tester and check if fluctuation of values meet the standard values when decompressed and compressed.

WHEEL SPECIFICATIONS

	Front wheel	Rear wheel
When compressed	2,000 N (203 kgf, 447 lb) or more	1,000 N (102 kgf, 224 lb) or more
When decompressed	500 N (51 kgf, 112 lb) or less	500 N (51 kgf, 112 lb) or less