What does code P2A0C mean?

Q: What does code P2A0C mean?

Manifold Absolute Pressure Sensor B Circuit Low. P2A0C means the engine computer has detected a low voltage signal on the circuit for Manifold Absolute Pressure Sensor B, which is a second MAP sensor used on some engines to monitor pressure in a specific part of the intake. The computer expects the sensor's signal voltage to stay within a calibrated range, and a sustained low reading tells it the circuit is shorted to ground, the sensor has failed, or the reference voltage is missing.

DTC codes / P2Axx · Hybrid propulsion / P2A0C

P2A0CManifold Absolute Pressure Sensor B Circuit Low

P2A0C means the engine computer has detected a low voltage signal on the circuit for Manifold Absolute Pressure Sensor B, which is a second MAP sensor used on some engines to monitor pressure in a specific part of the intake. The computer expects the sensor's signal voltage to stay within a calibrated range, and a sustained low reading tells it the circuit is shorted to ground, the sensor has failed, or the reference voltage is missing.

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.