What does code P23EF mean?

Q: What does code P23EF mean?

Camshaft B Position Signal Output Circuit Open Bank 2. P23EF indicates that the powertrain control module (PCM) has detected an open circuit in the signal output path from the bank 2 camshaft position sensor, specifically the 'B' sensor. This means the PCM is not receiving a valid signal from that sensor, which it uses to synchronize fuel injection and ignition timing.

DTC codes / P23xx · Ignition system and misfire / P23EF

P23EFCamshaft B Position Signal Output Circuit Open Bank 2

P23EF indicates that the powertrain control module (PCM) has detected an open circuit in the signal output path from the bank 2 camshaft position sensor, specifically the 'B' sensor. This means the PCM is not receiving a valid signal from that sensor, which it uses to synchronize fuel injection and ignition timing.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

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.