Home >> Lexus >> 2014 >> IS F >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes) (P0351-P1366) >> SFI System >> DTC P1023: Camshaft Position Signal Output "B" Circuit; DTC P2614: Camshaft Position Signal Output Circuit / Open [09/2013 - ] >> Typical Malfunction Thresholds