Brake Booster Pressure Sensor

Where it lives

For C0047, the part to look at first is the sensor named here.

Check these first

• A failed brake booster pressure sensor
• An open or short in the brake booster pressure sensor circuit
• Corrosion at the brake booster pressure sensor connector
• A failed brake booster
• A fault in the brake control module

What to do next

1. Inspect the brake booster pressure sensor and connector
2. Test the brake booster pressure sensor circuit for opens and shorts
3. Monitor the sensor signal with a scan tool
4. Check the brake booster for proper function
5. Replace the brake booster pressure sensor if it tests bad
6. Clear the code and retest

Look up another code