Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hi Val! That is an interesting problem. Don't think I have seen this before. Let me pull up the wiring diagram and look it over. I will then get back to you asap.
No, sorry, I was out of town for a while but will try to do that tomorrow Val.
Hi Val, According to the wiring diagram, the oil pressure switch is wired to the PCM (engine computer). The PCM then sends a message to the instrument cluster to turn on or off the oil light. Now you say that the switch shows a ground with the engine running? It should be the other way around according to the service manual. Can you recheck that when you get a chance?
Val there is no dedicated wire from the sending unit to the cluster. The PCM (engine computer) is wired to the sending unit and then sends the information to the cluster over the BUS network.