Check Valve Operation Check
- Remove the check valve (Refer to MASTER CYLINDER ASSEMBLY AND BRAKE BOOSTER ASSEMBLY
).CAUTION: Replace the check valve when it is faulty.
- Using a vacuum pump, check operation of the check valve.
| Vacuum pump connection | Normal condition |
|---|---|
| When connected to the booster side (1) | Vacuum is generated and maintained. |
| When connected to the engine side (2) | No vacuum is generated. |