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08-12 Let the engine run for 1 to 2 minutes and stop it. If the brake pedal stroke is shortened as pumping the brake pedal, the system is normal. If not, the system is defective. 1. Depress the brake pedal several times with engine off. If the brake goes down when starting engine with pedal depressed, the system is normal. If not, the system is defective. 2. If the above three checks are OK, the system is normal. If any condition is not met, check the valve, vacuum hose and brake booster. 3) Brake Booster OK NG Engine stopped Engine running Depress the brake pedal when the engine is running. If the pedal height is not changed for 30 seconds after stopping the engine, the system is normal. If not, the system is defective. 3. |