Good advice from jay_bob. Listen to him! The light bulb should be easier to find a short but a DVM will work if you have a discerning eye. The switch illumination bulbs are around 19 ohms ea and when you have a few in parallel, can drop to a few ohms. One of the loads is a heated window, which is the highest load of the bunch and the lowest resistance. Did you try shutting the heated window switch off and see if the resistance changed?

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked