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Confirmation Procedure

1. Turn the vehicle to the OFF (LOCK) mode.

2. Press the brake pedal several times to deplete the vacuum.

3. Turn the vehicle to the ON mode.

4. Confirm the HDS [BRAKE BOOSTER PRESSURE SENSOR (A)] value, and start the engine.

5. If the HDS [BRAKE BOOSTER PRESSURE SENSOR (A)] value dose not change, the failure is duplicated