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Boxes on Left Side Re: 86 735i ECU (archive)
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Posted by Grant on November 02, 2000 at 19:05:39:

In Reply to: 86 735i ECU posted by Mike on November 02, 2000 at 16:02:47:


Hi all, was wondering what the electric boxes are behind the front speaker panels. I know the ECU is on the passenger side, what is above the glove box? And on driver side, what are the two boxes behind that speaker? The lower one especially as that circuit board has suffered water damage, something we all should check out as the drain from the sunroof empties into that area and flooded it. Car starts ok when it was disconnected. Have no idea what it monitors. Any experts out there? Thanks

I am pretty sure that the box on the lower area towards the door frame is the cruise controller. And the box above the speaker is the central locking control unit. What ever you do, do NOT unplug or remove that box with out disconnecting the battery (power) from the system.


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