I can not get the overhead check panel lite to clear the brake lite test . 88’ M3 is what I’m working on . I’ve got (2) other e30s so I know how it should work . 21w & 18w for third lite . What is my problem ?? I’ve swapped out check panel , swapped out the check control panel relay in trunk .
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M3 check panel brake lite won’t go out !
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I've fixed a few of these. The check panel has several transistors which trigger the LED indicators on and off. These transistors fail over the 30 years and cause them to be stuck on or off. Same thing happens to the SI board, indicators get stuck on with key off, killing vehicle battery.Owner - Bavarian Restoration
BMW and European Electronics Repair and Restoration
www.BavRest.com
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