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DTC codes / P2Exx · Hybrid propulsion / P2E8A

P2E8AProximity Detection Circuit B High

P2E8A indicates that the powertrain control module has detected an abnormally high voltage on the proximity detection circuit B, which is used to monitor the position or presence of a component such as a sensor or actuator. The circuit is typically a low-voltage signal line, and a high reading means the PCM sees voltage above the expected range, often due to a short to power or an open circuit.

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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