With VDC

INSPECTION
1. Check the connected and fixed condition of connector.





2. Check the mark used for VDCCM&H/U identification.
Refer to "SPECIFICATION" for mark.

CHECKING THE HYDRAULIC UNIT ABS OPERATION BY PRESSURE GAUGE
CHECKING THE HYDRAULIC UNIT ABS OPERATION WITH BRAKE TESTER
CHECKING THE HYDRAULIC UNIT VDC OPERATION BY PRESSURE GAUGE
1. Lift-up the vehicle, and then remove the wheels.
2. Remove the air bleeder screws from the FL and FR caliper bodies.





3. Connect two pressure gauges to the FL and FR caliper bodies.

CAUTION:
^ Pressure gauges used exclusively for brake fluid must be used.
^ Do not use the pressure gauge for the measurement of transmission oil pressure since the piston seal may be expanded and deformed.

NOTE: Wrap a sealing tape around the pressure gauge.

4. Bleed air from the pressure gauges.
5. Perform VDC sequence control.
6. When the hydraulic unit begins to work, first the FL side performs compression, holding, and decompression, and then the FR side performs compression, holding, and decompression.





7. Read values indicated on the pressure gauge and check if the fluctuation of the values between decompression and compression meets the standard values. Depress the brake pedal and check that it is not abnormally hard, and tightness is normal.
8. Disconnect the pressure gauges from FL and FR caliper bodies.
9. Install the air bleeder screws of FL and FR caliper bodies.
10. Remove the air bleeder screws from the RL and RR caliper bodies.
11. Connect two pressure gauges to the RL and RR caliper bodies.
12. Bleed air from the pressure gauges and the RL and RR caliper bodies.
13. Perform VDC sequence control.
14. When the hydraulic unit begins to work, first the RR side performs compression, holding, and decompression, and then the RL side performs compression, holding, and decompression.
15. Read the values indicated on the pressure gauges and check it within specified. 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 the wheels other than the measured one on free rollers.
2. Prepare for operating the VDC sequence control.








3. Set the front wheels or rear wheels on the brake tester and set the select lever position to "N" range.
4. Operate the brake tester.
5. Perform VDC sequence control.
6. 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.





7. Read values indicated on the brake tester and check if the fluctuation of the values between decompression and compression meets the standard values.
8. After the inspection, depress the brake pedal and check that it is not abnormally hard, and tightness is normal.