C0641

Brake Pressure Sensor K Circuit/Open

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

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

C0051 C0061 C0081