1. Remove the vacuum hose from the power brake unit.
2. Set the vacuum pump (any commercially available model) onto the power brake unit as shown.
3. Turn the ignition switch to ON.
4. Release the parking brake.
5. Apply vacuum to the power brake unit using the vacuum pump (any commercially available model) and verify the operating condition of the brake warning light. The vacuum switch is functioning normally if it corresponds to the above specifications.
|
Vacuum
kPa {mm Hg, inHg}
|
Brake warning light
|
|---|---|
|
Below 10.7±2.7
{80±20, 3.1±0.8}
|
ON
|
|
Above 10.7±2.7
{80±20, 3.1±0.8}
|
OFF
|