C0645

Symptoms

• The ABS/ESP indicator on the dashboard is on
• Reduced ABS performance
• Unstable behavior of the ESP system
• Possible problems with braking

Causes

• Broken or damaged brake pressure sensor wires
• Malfunction of the pressure sensor itself
• Poor contact in sensor connectors
• Wiring harness damage
• ABS/ESP module malfunction

How to Fix

1. Check the integrity of the wiring and connectors of the brake pressure sensor
2. Check the resistance of the pressure sensor (compare with technical specifications)
3. Inspect the wiring harness for damage
4. If necessary, replace the brake pressure sensor
5. Check the operation of the ABS/ESP module

Related codes

Error C0645 by Vehicle Brand