Strange noises from under the bonnet? Spooky. Happy Halloween from Auto Veteran: may your only scares be costumes.
DTC codes / P2Axx · Hybrid propulsion / P2ACB
P2ACB means the engine computer has detected an intermittent or erratic signal from the charge air cooler coolant temperature sensor B circuit. The sensor monitors the coolant temperature inside the charge air cooler, and the computer sees the voltage signal jumping or dropping out instead of changing smoothly with temperature.
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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