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DTC codes / P2Axx · Hybrid propulsion / P2A0E

P2A0EManifold Absolute Pressure Sensor B Circuit Intermittent/Erratic

P2A0E indicates that the powertrain control module has detected an intermittent or erratic signal from the Manifold Absolute Pressure Sensor B circuit, which is used to measure intake manifold pressure and infer engine load. The computer sets this code when the sensor's voltage or pressure reading jumps unpredictably or drops out momentarily, rather than failing completely.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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