infiniti Workshop Repair Guides

Infiniti Workshop Service and Repair Manuals

Vacuum Brake Booster|Service and Repair > < Parking Brake Warning Switch|Locations
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Vacuum Brake Booster: Testing and Inspection

On-Board Inspection and Service 

OPERATION CHECK 

With engine stopped, change vacuum to atmospheric pressure by depressing brake pedal several times. Then with brake pedal fully depressed, start
engine and when vacuum pressure reaches the standard, make sure that clearance between brake pedal and floor panel decreases.

AIR TIGHT CHECK 

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Run engine at idle for approximately 1 minute, and stop it after applying vacuum to booster. Depress brake pedal normally to change vacuum to
atmospheric pressure. Make sure that distance at intervals of 5 seconds between brake pedal and floor panel gradually increases.

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Depress brake pedal while engine is running, and stop engine with pedal depressed. The pedal stroke should not change after holding pedal down
for 30 seconds.

Vacuum Brake Booster|Service and Repair > < Parking Brake Warning Switch|Locations