Impreza GT F4-2.5L Turbo (2009)
13) Perform VDC sequence control.
14) When the hydraulic unit begins to work, first the RR side performs compression, hold, and decompression, and then the RL side performs
compression, hold, and decompression.
15) Read the values indicated on the pressure gauges and check if it is within specification. Depress the brake pedal and check that it is not abnormally
hard, and tightness is normal.
16) Disconnect the pressure gauge from the RL and RR caliper bodies.
17) Install the air bleeder screws of RL and RR caliper bodies.
18) Bleed air from the brake line.
CHECK HYDRAULIC UNIT VDC OPERATION WITH BRAKE TESTER
1) Set wheels other than the one to measure on free rollers.
2) Prepare to operate the VDC sequence control.
3) Set the front wheels or rear wheels on the brake tester and set the select lever position to the "N" range.
4) Operate the brake tester.
5) Perform VDC sequence control.
6) When the hydraulic unit begins to work, check the following work sequence.
1) The FL wheel performs compression, hold and decompression in sequence, and subsequently the FR wheel repeats the cycle.
2) The RR wheel performs compression, hold and decompression in sequence, and subsequently the RL wheel repeats the cycle.
7) Read values indicated on the brake tester and check if the fluctuation of the values between decompression and compression meets specification.
8) After the inspection, depress the brake pedal and check that it is not abnormally hard, and tightness is normal.
