Valve Lift Oil Pressure Switch

Confirms to the module that oil pressure actually reached the rocker arm actuator gallery after the solenoid was commanded. The module does not watch the pin — it watches this switch — so a failed switch reports that nothing happened on a system that worked perfectly. It is the commonest cause of a stuck-off rocker arm actuator code and the cheapest part in that diagnosis, which is why it belongs at the top of the list rather than after the cylinder head has been opened.

Also known as: vtec pressure switch, vtec oil pressure switch, lift confirmation switch, rocker oil pressure switch, vvl pressure switch

Referenced by 4 codes

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Codes involving this component (4)

Other components in Valve Timing and Actuation

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