U0674

Lost Communication With Wastegate Position Sensor B

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Reduced engine power
Check Engine light comes on
Dips during acceleration
Increased fuel consumption
Turbocharging is unstable

Causes

Open or short circuit in the sensor circuit
Turbine position sensor malfunction
Connector problems or contact corrosion
Engine ECU malfunction
Wiring harness damage

How to Fix

Check the integrity of the sensor circuit
Inspect connectors and contacts for corrosion
Check the resistance of the turbine position sensor
Scan the ECU for additional errors
Replace the turbine position sensor if necessary

Related codes

U0673 U0675 U0100