P2BBB

Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Reduced engine power
Unstable engine operation
Increased fuel consumption
Check Engine Light Illuminates
Acceleration problems

Causes

Open or short circuit in the sensor circuit
Bypass valve position sensor malfunction
Problems with the wiring harness or connectors
Mechanical failure of the bypass valve
Problems with the engine ECU

How to Fix

Check the integrity of the sensor circuit
Check connectors and wiring harness for damage
Test bypass valve position sensor
Check the mechanical operation of the bypass valve
If necessary, replace the sensor or repair the circuit

Related codes

P2BBC P2BBD P003A