R2 - Fluid Level Check, Brakes Applied

- Apply brakes very slowly several times while observing the brake fluid level in the brake master cylinder reservoir.

NOTE: Brake master cylinder bypass typically occurs when the brakes are applied very slowly and line pressures are low. A "hard" apply can flare the internal lip seals out and result in a passing test where the concern may in fact be valid.

- Does the level remain the same?

YES -- Go to R3.

NO -- Brake master cylinder checks OK.