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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Oil Pressure Sensor: Testing and Inspection

OIL PRESSURE SWITCH TEST
Refer to Diagnostic Charts/ A-5 Fuel Pump Relay Circuit DiagnosisChart A-5 Fuel Pump and Relay Electrical Test for the oil pressure switch testing and diagnosis.