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Q: Turn signal coming on when engine start on 1999 BMW 323i

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Please help: My right turn signal keeps coming on once engine started. Replace all bulbs and fuses. What else can cause this problem?
(1) Answer
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It is likely to be a short in the turn signal switch but impossible to know with out being able to trace the wiring in your car and see what the real cause is. Try disconnecting the wiring connection at the turn signal switch and see if the light then turns off but ensure it is not the air bag connector you disconnect or the air bag system will detect a fault and set a trouble code.
Patrick, I disconnecting the wires connector light went off, but how do I remove the switch from the underneath the cover once the two screws are out?