Weird rear bulb issue

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daboy3000
E30 Zone Regular
E30 Zone Regular
Posts: 300
Joined: Sun Jun 28, 2015 11:00 pm
Location: Croydon

Post Wed Apr 13, 2016 2:34 pm

Help please, weird issue with one side of my rear lights.

When the indicator bulb is in the socket the reverse light doesn't work. If I take the indicator bulb out it works fine.

Must be some kind of earthing issue but I have no idea where to start.