What does code P0D59 mean?

Q: What does code P0D59 mean?

Proximity Detection Circuit A High. P0D59 indicates that the powertrain control module has detected an abnormally high voltage on the proximity detection circuit for a high-voltage component, typically the battery pack or a service disconnect. This circuit uses a low-voltage signal to confirm that a high-voltage connector or cover is fully seated and safe before the system allows high-voltage operation.

DTC codes / P0Dxx · Hybrid propulsion / P0D59

P0D59Proximity Detection Circuit A High

P0D59 indicates that the powertrain control module has detected an abnormally high voltage on the proximity detection circuit for a high-voltage component, typically the battery pack or a service disconnect. This circuit uses a low-voltage signal to confirm that a high-voltage connector or cover is fully seated and safe before the system allows high-voltage operation.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

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.