Q6 - Reserve Retention Check

- Key On, Engine Running at idle speed.

- Charge system pressure by holding the steering wheel on the stop, or by pressing down on the brake pedal with approximately 444 N (100 lbs. force).

- Key off.

- Wait 8 to 12 minutes.

- Depress the brake pedal.

- Is there any power reserve?

YES -- Hydro-Boost power brake booster is OK.

NO -- Replace the Hydro-Boost power brake booster.