C0641
Brake Pressure Sensor K Circuit/Open
C0641 is an OBD-II diagnostic trouble code meaning: Brake Pressure Sensor K Circuit/Open. Common causes: broken or damaged sensor wiring harness, corrosion or poor contact in connectors. Estimated repair cost: $56–167.
Symptoms
- ABS/ESP indicator is on
- Reduced efficiency of active safety systems
- Unstable system behavior during braking
Causes
- Broken or damaged sensor wiring harness
- Corrosion or poor contact in connectors
- Failure of the brake pressure sensor
- Brake ECU malfunction
How to Fix
- Check the integrity of the sensor wiring harness
- Clean connector contacts from oxidation and corrosion
- Test resistance and sensor signal
- Replace brake pressure sensor if necessary
- Check the operation of the brake system ECU
Related codes
Error C0641 by Vehicle Brand
FAQ
What does the C0641 code mean?
C0641 is an OBD-II diagnostic trouble code that indicates: Brake Pressure Sensor K Circuit/Open
What causes a C0641 error code?
The most common causes of C0641 include: Broken or damaged sensor wiring harness; Corrosion or poor contact in connectors; Failure of the brake pressure sensor; Brake ECU malfunction.
How do I fix a C0641 diagnostic trouble code?
To fix C0641: Check the integrity of the sensor wiring harness. Clean connector contacts from oxidation and corrosion. Test resistance and sensor signal. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0641?
Do not drive — repair immediately
How much does it cost to fix C0641?
The estimated repair cost for C0641 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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