What does code P0375 mean?

Q: What does code P0375 mean?

Timing Reference High Resolution Signal 'B'. P0375 indicates that the engine control module (ECM) has detected a problem with the high-resolution timing reference signal 'B' from the camshaft or crankshaft position sensor circuit. This signal is used to precisely synchronize fuel injection and ignition timing, and when it is missing, erratic, or out of phase, the ECM sets this code and may default to a less accurate timing strategy.

DTC codes / P03xx · Ignition system and misfire / P0375

P0375Timing Reference High Resolution Signal 'B'

P0375 indicates that the engine control module (ECM) has detected a problem with the high-resolution timing reference signal 'B' from the camshaft or crankshaft position sensor circuit. This signal is used to precisely synchronize fuel injection and ignition timing, and when it is missing, erratic, or out of phase, the ECM sets this code and may default to a less accurate timing strategy.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.