J2 - Brake Pedal Reserve Check
- Key ON, engine running at idle with transmission in PARK or NEUTRAL.
- Depress brake pedal lightly three or four times.
- Wait 15 seconds to allow the vacuum to replenish.
- Push down on brake pedal until it stops moving downward or an increased resistance to the pedal travel occurs.
NOTE: This increased resistance may feel like the pedal has bottomed out.
- Hold the pedal in the applied position while increasing the engine speed to 2000 rpm.
- Release the accelerator pedal.
- Does the brake pedal move downward as engine speed returns to normal?
YES -- Go to J3. J3 - Brake Fluid Level Check
NO -- Check vacuum to booster.