What does code P2DD1 mean?

Q: What does code P2DD1 mean?

Control Pilot Charging Switch B Circuit High. P2DD1 indicates that the powertrain control module has detected a high-voltage condition on the control pilot circuit for charging switch B, which is part of the electric vehicle supply equipment handshake. The computer expects a specific voltage range on this signal line, and a reading above the normal threshold for a calibrated time sets the code.

DTC codes / P2Dxx · Hybrid propulsion / P2DD1

P2DD1Control Pilot Charging Switch B Circuit High

P2DD1 indicates that the powertrain control module has detected a high-voltage condition on the control pilot circuit for charging switch B, which is part of the electric vehicle supply equipment handshake. The computer expects a specific voltage range on this signal line, and a reading above the normal threshold for a calibrated time sets the code.

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.