Powertrain Definition only Lights the check engine lamp

P2AB7: Wastegate Position Sensor A Circuit

Standardized SAE J2012 code · P2Axx codes

What does P2AB7 mean?

The ECM detects a generic fault on the wastegate position sensor A circuit. Boost actuator position cannot be verified reliably.

The code tells you which monitor failed, not which part is broken. Test before replacing parts.

Common causes

  • High Position sensor failed
  • Medium Wiring or connector fault

Likelihood is a general estimate across vehicles; your make and model may differ.

Add your car to see reports of P2AB7 on the same make and model first.

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