Operation CHARM: Car repair manuals for everyone.

Brake Booster




Brake System Inspection






Brake Booster (Hybrid Vehicles)

1. Inspect the brake booster for excessive corrosion or damage. Inspect the vacuum hoses for leaks and kinks.
- Install a new brake booster if signs of excessive corrosion or damage is found. For additional information, refer to Power Brake Assist.

- Repair or replace vacuum hoses as necessary.

2. Check all electrical connections by wiggling connectors and flexing the wire harnesses.
- Repair the connector, terminals or wire harness as needed.

3. Retrieve any ABS module DTCs. For additional information, refer to Antilock Brakes / Traction Control Systems.