What does code P217B mean?

Q: What does code P217B mean?

Fuel Injector Group G Supply Voltage Circuit Low. P217B indicates that the powertrain control module has detected an abnormally low voltage on the power supply circuit feeding a specific group of fuel injectors, labeled Group G. The computer monitors the voltage delivered to the injector coils and sets this code when the circuit falls below the expected threshold, which can prevent those injectors from opening and delivering fuel.

DTC codes / P21xx · Fuel and air metering / P217B

P217BFuel Injector Group G Supply Voltage Circuit Low

P217B indicates that the powertrain control module has detected an abnormally low voltage on the power supply circuit feeding a specific group of fuel injectors, labeled Group G. The computer monitors the voltage delivered to the injector coils and sets this code when the circuit falls below the expected threshold, which can prevent those injectors from opening and delivering fuel.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.