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Acura DTC

Acura DTC P2647

Manufacture

Acura DTC

Code

P2647

Definition

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

  • Low oil levelLow oil pressureOpen in the wire between the rocker arm oil pressure switch and groundPoor connections or loose terminals at the rocker arm oil pressure switch, the rocker arm oil control solenoid, and the PCMOpen circuit between the PCM and the rocker arm oil pressure switchFaulty rocker arm oil pressure switchFaulty rocker arm oil control solenoid assemblyPCM needs to be updated with the latest softwareFaulty PCM

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