What does code P2ACA mean?

Q: What does code P2ACA mean?

Charge Air Cooler Coolant Temperature Sensor B Circuit High. P2ACA means the engine computer has detected an abnormally high voltage on the signal circuit for the charge air cooler coolant temperature sensor B, which is the sensor that monitors the coolant temperature inside the air-to-liquid intercooler system. The computer expects a voltage within a calibrated range, and a high reading tells it the sensor circuit is open, shorted to voltage, or the sensor itself has failed.

DTC codes / P2Axx · Hybrid propulsion / P2ACA

P2ACACharge Air Cooler Coolant Temperature Sensor B Circuit High

P2ACA means the engine computer has detected an abnormally high voltage on the signal circuit for the charge air cooler coolant temperature sensor B, which is the sensor that monitors the coolant temperature inside the air-to-liquid intercooler system. The computer expects a voltage within a calibrated range, and a high reading tells it the sensor circuit is open, shorted to voltage, or the sensor itself has failed.

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.