C0047
Brake Booster Pressure Sensor
C0047 is an OBD-II diagnostic trouble code meaning: Brake Booster Pressure Sensor. Common causes: brake booster pressure sensor malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.
Symptoms
- Increased brake pedal force
- The brake system fault light comes on
- Reduced braking performance
- Unstable brake operation
Causes
- Brake booster pressure sensor malfunction
- Open or shorted wiring harness
- Damage to the vacuum brake booster
- Sensor connection problems
How to Fix
- Check the integrity of the wiring harness to the sensor
- Test the pressure sensor with a multimeter
- Replace the sensor if a fault is detected
- Check the vacuum booster for leaks
- Reset the error and take a test drive
Related codes
Error C0047 by Vehicle Brand
FAQ
What does the C0047 code mean?
C0047 is an OBD-II diagnostic trouble code that indicates: Brake Booster Pressure Sensor
What causes a C0047 error code?
The most common causes of C0047 include: Brake booster pressure sensor malfunction; Open or shorted wiring harness; Damage to the vacuum brake booster; Sensor connection problems.
How do I fix a C0047 diagnostic trouble code?
To fix C0047: Check the integrity of the wiring harness to the sensor. Test the pressure sensor with a multimeter. Replace the sensor if a fault is detected. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0047?
Limited driving only, diagnose soon
How much does it cost to fix C0047?
The estimated repair cost for C0047 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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