Question on BMW 3-Series E36 Oil Change

My dash oil light will not lit at all when the ignition is turned over. What would cause this on a e36 m3? Oil pressure switch? It's not the bulb.

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[Nick at Pelican Parts]

Is it on with the Key in the ON position? Could be a bad signal. I would scan the cluster for faults, there may be a fault code stored.

- Nick