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 Ω

• 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 Ω

• Push plug onto oil pressure switch
• Engine idling
• Ohmmeter on instrument cluster plug II  pin 6 and ground

  Ohmmeter display: "INFIN" Ω

• Check oil pump