What does code P027B mean?

Q: What does code P027B mean?

Fuel Pump Module B Control Circuit Range/Performance. P027B indicates that the powertrain control module (PCM) has detected an out-of-range or performance issue with the control circuit for fuel pump module B. The PCM monitors the circuit for expected voltage or current behavior and sets this code when the signal does not match the commanded state within a calibrated time or range.

DTC codes / P02xx · Fuel and air metering (injector circuits) / P027B

P027BFuel Pump Module B Control Circuit Range/Performance

P027B indicates that the powertrain control module (PCM) has detected an out-of-range or performance issue with the control circuit for fuel pump module B. The PCM monitors the circuit for expected voltage or current behavior and sets this code when the signal does not match the commanded state within a calibrated time or range.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

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