What does code P0319 mean?

Q: What does code P0319 mean?

Rough Road Sensor 'B'. The powertrain control module (PCM) monitors a dedicated rough road sensor, sometimes called a ride quality sensor, that reports vertical body movement so the computer can tell whether misfires are real or just road vibration. Code P0319 sets when the signal from sensor 'B' falls outside the expected voltage or frequency range for a calibrated period, meaning the PCM can no longer trust that sensor's input.

DTC codes / P03xx · Ignition system and misfire / P0319

P0319Rough Road Sensor 'B'

The powertrain control module (PCM) monitors a dedicated rough road sensor, sometimes called a ride quality sensor, that reports vertical body movement so the computer can tell whether misfires are real or just road vibration. Code P0319 sets when the signal from sensor 'B' falls outside the expected voltage or frequency range for a calibrated period, meaning the PCM can no longer trust that sensor's input.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaIgnition system and misfire

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