Operation CHARM: Car repair manuals for everyone.

Test Point 10

Test point 10
Oil pressure

- Ignition on

- Engine off

PST2 display: not present

- Engine idling

PST2 display: present

If oil pressure "not present" is displayed when the engine is running:

- Check oil level

- Switch off ignition

- Pull off plug II on the instrument cluster

- Ohmmeter on instrument cluster plug II pin 6 and ground
Ohmmeter display: < 5 Ohms

- Disconnect plug on oil pressure switch

- Ohmmeter on instrument cluster plug II pin 6 and plug on oil pressure switch, pin 1
Ohmmeter display: < 5 Ohms

- Push plug onto oil pressure switch

- Engine idling

- Ohmmeter on instrument cluster plug II pin 6 and ground
Ohmmeter display: Infinite Ohms

- Check oil pump