[35A] BASIC BRAKE SYSTEM - - ON-VEHICLE SERVICE - CHECK VALVE OPERATION CHECK | PRINT PAGE / INDEX / PRIOR / NEXT

| CHECK VALVE OPERATION CHECK CAUTION The check valve should not be removed from the vacuum hose. Remove the vacuum hose (Refer to ). CAUTION If the check valve is defective, replace it as an assembly unit together with the vacuum hose.
| Check the operation of the check valve by using a vacuum pump.
Vacuum pump connection | Accept/reject criteria
--- | ---
Connection at the brake booster side (A) | A negative pressure (vacuum) is created and held.
Connection at the intake manifold side (B) | A negative pressure (vacuum) is not created.

[35A] BASIC BRAKE SYSTEM - - ON-VEHICLE SERVICE - CHECK VALVE OPERATION CHECK | PRINT PAGE / INDEX / PRIOR / NEXT

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