Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Oil Pressure Sensor: Testing and Inspection

SCAN TOOL TESTING
The scan tool displays oil pressure as "Low" or "OK."

The PCM checks the engine oil pressure continuously. If the oil pressure switch indicates low oil pressure at any time, the PCM will send information through serial data to the Instrument Panel Cluster (IPC) to turn "ON" the "Low Oil Pressure" symbol lamp.

Also refer to Chart C-16A Fuel Pump and Engine Oil Pressure Switch Input to diagnose the Oil Pressure Switch Circuit. Testing and Inspection