What does code P2AF7 mean?

Q: What does code P2AF7 mean?

Starter Relay D Control Circuit/Open. P2AF7 indicates that the powertrain control module (PCM) has detected an open circuit or excessive resistance in the control circuit for starter relay D, which is often the secondary starter relay used in vehicles with automatic start-stop or dual-relay configurations. The PCM commands the relay on during a crank request but does not see the expected voltage change on the control wire, so it flags the circuit as open.

DTC codes / P2Axx · Hybrid propulsion / P2AF7

P2AF7Starter Relay D Control Circuit/Open

P2AF7 indicates that the powertrain control module (PCM) has detected an open circuit or excessive resistance in the control circuit for starter relay D, which is often the secondary starter relay used in vehicles with automatic start-stop or dual-relay configurations. The PCM commands the relay on during a crank request but does not see the expected voltage change on the control wire, so it flags the circuit as open.

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.