DTC P2647 Acura
Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Circuit High Voltage
Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Circuit High Voltage
Description
When the rocker arm oil control solenoid is OFF, the rocker arm oil pressure switch remains OFF. (Low lift cam operation) NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.
Cause and Solution
Low oil level
Low oil pressure
Open in the wire between the rocker arm oil pressure switch and ground
Poor connections or loose terminals at the rocker arm oil pressure switch, the rocker arm oil control solenoid, and the PCM
Open circuit between the PCM and the rocker arm oil pressure switch
Faulty rocker arm oil pressure switch
Faulty rocker arm oil control solenoid assembly
PCM needs to be updated with the latest software
Video Guide
Diagnostic Info
- DTC Code: P2647
- Brand: Acura