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I would say the alternator has battery feed on the warning light wire.
Do the lights go out if you disconnect the warning wire at the alternator?
I will check tmrw morning and let you know..which wire would this be?
Disconnect the small wiring connector at the back of the alternator, would have two wires in the connector.
If the 2 lamps go out, the fault is within the alternator.
You'll then need to replace the alternator.
only have main b+ wire and exciter wire attaching to the back of my alternator. Disconnected exciter wire and lights stay on
I would say there is a foreign voltage on the exciter wire while it is disconnected.
Are the 2 lamps normal brightness or half brightness?
Can you place a multimeter on the exciter wire while it is disconnected to measure for foreign voltage?
Can you disconnect the oil pressure switch to see if the lights go out?
If there is a foreign voltage, can you then disconnect the cluster to see if the foreign voltage goes away?
I was hoping for you, the fault was in the alternator.
Hope this helps.