U02B0

Lost Communication With Turbocharger/Supercharger Boost Control B Position Sensor

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Reduced engine power
Check Engine Light Illuminates
Unstable engine operation
Increased fuel consumption
Turbocharging does not work correctly

Causes

Position sensor B fault
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Sensor power problems
Engine control unit malfunction

How to Fix

Check the integrity of the wiring to the sensor
Check connections and contacts in the sensor connector
Check the power supply and ground of the sensor
Test position sensor B
Replace the faulty sensor if necessary

Related codes

U02A0 U02B1 U02B2