Pic needed of oil level dipstick top sensor

Not sure if this one is useable for you Fred. The 2 wires go into the wire harnes of the AC pump
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Not sure if this will help, these are from my '86 3.2, first pic is showing it connected, second is showing the top portion of the stick and the last is the white female connection with two wires from it.
Andy
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I think it's the same part as my Fiat Uno was.......but not sure, obviously the length of the dip stick would be different.

 

I'm not really sure how it works. It is also interconnected with the "Due Service" in the LED pannel. If that one is on the sensor does not work until you reset the "Due service". Ps. I don't trust it a single bit. I always dip

 

Fred, just unplug the sensor and see what the light does - then jump the plug and see what the light does. The gearbox sensor is the same type.
Fail-safe logic would want it to be closed with oil in, so that you could detect both a low oil level and/or an unplugged sensor. So my guess is if you unplug it the light comes on.

So, closed circuit = light off. Open circuit = light on.

I am not near my car so can't check my theory

Tijn, to my knowledge it is not interconnected with the service due light, which comes on solely when the electro-mechanical counter goes to 3000mls/5'000km. There is no intellectual connection between a service interval and a low oil level.

Both of mine work reliably. I have never ever pulled that stick out since I have the car. Green on the centre console, before starting, oil pressure comes up/red light out and steady pres/temp ever since. I had the oil level light come on a few times towards the end of the service interval on steep slopes, so it does work.

 

both wires are directly connected to the check control unit on your console..

Guido

 

I read it somewhere since mine didn't work and I haven't reset the service interval. Lazy part on my part, but since I do an oil change every year I never look at the LED display.

I'll see if I can find it where I read it, but I trust more your knowledge on this matter

 

... but not connected together; they both have a separate pin.
They work independently on my unit in the QC - maybe the 3.2 is different.