( TL19E00D14300014701MAAT00 )

Brake Booster Inspection

Special Tools Required
Pressure gauge joint pipes, 12 x 1.0 mm
07HAK-SG00110
Pressure gauges set
07YAJ-0010410
Vacuum gauge
07YAJ-0010610
Attachments
07410-5790102
Tube joint adapter
07410-5790503
Leak Test

1. Install the vacuum gauge (A) between the brake booster and check valve.

1. Start the engine, adjust the engine speed with the accelerator pedal so that the vacuum gauge readings show 66.7 kPa (500 mmHg, 19.7 in.Hg), then stop the engine.

1. Read the vacuum gauge.
   If the vacuum reading decreases 2.7 kPa (20 mmHg, 0.8 in.Hg) or more after 30 seconds, check following parts for leaks.
   - Check valve
   - Vacuum hose, pipe
   - Seals
   - Brake booster
   - Master cylinder
   NOTE: Do not try to disassemble the brake booster. Replace the brake booster as an assembly with a new one.