Oldsmobile warning chime

Sup people-

I have an '88 Olds Delta 98 Touring Sedan. Here's my problem: After my car is warmed up, the warning chime comes on intermittently when coming to a stop or at idle. As far as I can tell, it isn't oil pressure, voltage, or high temp. The diagrams in my service manual don't match the wiring in the car, so I don't even know what components/sensors set it off. There aren't any codes in the ECM either.Since it only happens at idle, maybe it could be the low coolant sensor? The oil pressure gauge works , but the oil light doesn't. I don't know what else to check. Do you guys have any ideas?

Thanks, Aaronthebug

i would first replace the oil light bulb and see if it comes on, maybe check or change your oil. Also check all fluid levels and correct them if needed if it still continues to do so it would be something else for sure.

The light bulb is good; it just doesn't work. All the fluids are OK. I'm thinking that a sensor is bad or a wire is loose, but this car has a LOT of wires to check. I pulled the dash to look for the chime, but I can't find it. I need to find out what all is hooked up to it to narrow down what the cause is, and the chime's location.

         I'm pulling off the heads to do a valve job, so I'm not going to be able to tell if it's fixed or not until it's all put back together again:)

A.T.B.