DTC P2091-00: Hydraulic Variable Valve Timing Control System: High Input

P2091-00: (PCM - VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Hydraulic variable valve timing control system: High input
Detection condition	The OCV control voltage relative to the PCM control is too high.
Fail-safe	Set the exhaust variable valve timing control to the maximum advanced position.
Possible cause	Malfunction in wiring harness (including connector/terminal) between OCV and PCM (see CIRCUIT INSPECTION .) (see CONNECTOR INSPECTION .) OCV malfunction (Refer to OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION (VIN Y) in the service information.) PCM malfunction (Refer to applicable PCM REMOVAL/INSTALLATION (VIN Y) in the service information.)
Repeatability verification procedure	Clear the DTC recorded in the memory. (see CLEARING DTC .) Perform the KOER self test. (See DTC INSPECTION .)
Courtesy of MAZDA MOTORS CORP.
1	PCM
2	OCV