U02AF

Lost Communication With Turbocharger Turbine Inlet Valve Position Sensor

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$39–133 (est.)

Symptoms

Reduced engine power
Check Engine Light Illuminates
Unstable operation of the turbocharger
Engine transition to emergency mode
Increased fuel consumption

Causes

Broken or damaged wires in the sensor circuit
Valve position sensor malfunction
Poor contact in the sensor connector
Sensor power problems
ECU malfunction (rare)

How to Fix

Check the integrity of the wiring harness to the sensor
Check the contacts in the sensor connector
Measure sensor resistance and voltage
Replace valve position sensor if necessary
Check the corresponding relay and fuses

Related codes

U02A8 U02AE U02B0