C0204
Master Cylinder Pressure Sensor
C0204 is an OBD-II diagnostic trouble code meaning: Master Cylinder Pressure Sensor. Common causes: pressure sensor malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.
Symptoms
- ABS/ESP indicator is on
- Reduced braking performance
- Incorrect operation of the stabilization system
Causes
- Pressure sensor malfunction
- Open or shorted wiring harness
- Problems with sensor connectors
- ABS/ESP module malfunction
How to Fix
- Check the integrity of the wiring harness and connectors
- Check sensor resistance and voltage
- Replace pressure sensor if necessary
- Check the operation of the ABS/ESP system after repair
Related codes
Error C0204 by Vehicle Brand
FAQ
What does the C0204 code mean?
C0204 is an OBD-II diagnostic trouble code that indicates: Master Cylinder Pressure Sensor
What causes a C0204 error code?
The most common causes of C0204 include: Pressure sensor malfunction; Open or shorted wiring harness; Problems with sensor connectors; ABS/ESP module malfunction.
How do I fix a C0204 diagnostic trouble code?
To fix C0204: Check the integrity of the wiring harness and connectors. Check sensor resistance and voltage. Replace pressure sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0204?
Do not drive — repair immediately
How much does it cost to fix C0204?
The estimated repair cost for C0204 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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