I'm not sure how the service indicators are linked to the lights since they aren't governed by the dash light dimmer. even the other items should only be affected by the dimmer switch by how bright the illumination is, not the actual functionality.
I'd suspect the General Module as being a possible culprit, but one fairly cheap troubleshooting item would be the ingnition switch. Anytime you have a bunch of totally unrelated electrical items acting weird, its probably the ignition switch. Part# 61326901961. Item #2 in this diagram.
If that isn't it, then look for wiring damage behind the dash, possibly rodent damage?
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Olympic Peninsula, WA, USA
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2005 Mini Cooper 100k, British Racing Green/Silver-Black
04/2002 4.6is 140k, Silver/Black-Alcantara *FOR SALE*
1989 325iX 270k, Diamond Black/Black
1984 318i 370k *SOLD* (First Bimmer)
Honorable Mentions: '71 2002, '87 325, '90 325ic, '92 525it, '93 325i, '94 530i
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