What does code P017B mean?

Q: What does code P017B mean?

Cylinder Head Temperature Sensor A Range/Performance. P017B indicates that the powertrain control module has detected an out-of-range or performance fault in the cylinder head temperature sensor circuit, typically a signal that does not rise or fall as expected during warm-up. The computer compares the sensor's reading against a modeled temperature derived from other inputs and flags the code when the two disagree beyond a calibrated threshold.

DTC codes / P01xx · Fuel and air metering / P017B

P017BCylinder Head Temperature Sensor A Range/Performance

P017B indicates that the powertrain control module has detected an out-of-range or performance fault in the cylinder head temperature sensor circuit, typically a signal that does not rise or fall as expected during warm-up. The computer compares the sensor's reading against a modeled temperature derived from other inputs and flags the code when the two disagree beyond a calibrated threshold.

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.