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I Know Stuff
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My 2000 ROW Passat does NOT have door open indicators on the dash.

Positive voltage is supplied from the CCM through the same Red/Black wire to the door lights (puddle lights),
and Red/Blue wires spliced to the Red/Black wire supply power to the other interior lights.
The puddle lights are grounded by a micro switch in the door lock module.
The interior lights are grounded by their individual switch or the CCM, depending on the switch position.

"Interior lights are working manually, both front and rear, but they wont light up once i open the doors."
This indicates a grounding issue, either in the wires from the lights to the CCM, or more likely a CAN Bus communication fault.

You really should get a VCDS or dealer scan.
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