What does code P2149 mean?

Q: What does code P2149 mean?

Fuel Injector Group 'B' Supply Voltage Circuit/Open. P2149 indicates that the engine control module (ECM) has detected an open circuit or supply voltage fault in the power feed to fuel injector group 'B', which typically covers one bank of injectors on V-configuration engines. The ECM monitors the voltage on the injector supply circuit and sets this code when the voltage falls outside the expected range, often because the circuit is open or shorted.

DTC codes / P21xx · Fuel and air metering / P2149

P2149Fuel Injector Group 'B' Supply Voltage Circuit/Open

P2149 indicates that the engine control module (ECM) has detected an open circuit or supply voltage fault in the power feed to fuel injector group 'B', which typically covers one bank of injectors on V-configuration engines. The ECM monitors the voltage on the injector supply circuit and sets this code when the voltage falls outside the expected range, often because the circuit is open or shorted.

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.