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 Sender: Testing and Inspection





Oil Pressure Switch
1. If the "OIL PRESSURE" indicating lamp lights up when the ignition switch is "ON" and goes out when engine is started and runs at idle, everything is in order. If "OIL PRESSURE" lamp does not light when ignition switch is "ON" check switch, lamp and wiring.
2. If there is current flow when ignition switch is "ON" and if there is no current flow when engine is running at idle, the switch is good.
If the switch is good, check the lamp and wiring.
Oil pressure switch operation pressure 14.71 - 29.42 kPa (0.15 - 0.3 kg/cm2 2.1 - 4.3 psi)





3. Using 24mm deep socket, tighten the switch to the specified torque.
Tightening torque
Oil pressure switch and sender assy 8 - 12 Nm (80 - 120 kg.cm, 5.8 - 8.7 ft. lbs.)

Oil Pressure Sender Assy





1. Check the continuity between the terminal and the body with an ohmmeter.
If there is no continuity, replace the oil pressure switch.