Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit High

Where it lives

For P2BBD, the part to look at first is the sensor named here.

Check these first

• A short to voltage on the turbocharger bypass valve A position sensor signal wire
• A failed turbocharger bypass valve A position sensor
• A bypass valve A position sensor connector shorted to a power feed
• A bypass valve A actuator stuck holding the sensor at its high end

What to do next

1. Scan all modules and read the turbocharger bypass valve A position sensor voltage
2. Inspect the bypass valve A position sensor connector and wiring
3. Test the bypass valve A position sensor signal wire for a short to voltage
4. Command the bypass valve A and watch the position sensor move
5. Replace the turbocharger bypass valve A position sensor if the signal stays high
6. Clear the code and retest

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