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