C0202

Master Cylinder Pressure Sensor

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

ABS/ESP indicator is on
Reduced braking performance
Incorrect operation of the stabilization system
Loss of pressure in the brake system

Causes

Pressure sensor malfunction
Open or shorted wiring harness
Problems with the ABS/ESP control module
Low brake fluid level
Air in the brake system

How to Fix

Check the brake fluid level
Diagnose the sensor wiring harness and connectors
Check sensor resistance (according to manufacturer's specifications)
Replace pressure sensor if necessary
Adapt the system after replacement

Related codes

C0201 C0203 C0245