Hydraulic Brake Booster: Testing and Inspection

BRAKE SYSTEM (OTHER): BRAKE BOOSTER: INSPECTION; 2013 MY FR-S [03/2012 -]

1. INSPECT VACUUM TUBE CONNECTOR HOSE

(a) Slide the 2 clamps and remove the vacuum tube connector hose.

(b) Using a vacuum pump, check that there is ventilation from the booster to the engine, and no ventilation from the engine to the booster.









If the result is not as specified, replace the vacuum tube connector hose.

(c) Connect the engine side of the vacuum hose with the engine stamp facing outside of the vehicle.









(d) Connect the vacuum hose to the booster assembly with the paint mark facing front side of the vehicle.

HINT
If the paint mark has been disappeared, check the ventilation and connect the hose so that there is ventilation from the booster to the engine, and no ventilation from the engine to the booster.

(e) Slide the 2 clamps and install the vacuum hose connector hose.