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Old 12-11-2011, 05:16 PM   #7
srt42b
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Drives: 07 335i
Join Date: Mar 2011
Location: Frenso, CA
Posts: 16
Couldn't find a schematic online anywhere. But just found an extra page that was hiding in the box for the power lock kit:

Step 1
Strip back the heavy black jacket from a couple of inches of wiring near the door lock module. There are 2 jacketed wire looms coming out of the module. Either one can be used.
Using a standard automotive test light, probe the brown wire in the loom. The doors should either lock or unlock. Write down results for later. The purple wire should make the locks work in the opposite direction. If you do not have a test light, you can use a grounded test lead or wire instead.

Step 2
On most keyless entry and alarm systems there should be a small 2 or 3 wire plug on the side of the module with a blue and green wire (some also have a red wire). Connect the green wire to the wire you marked as lock in step 1. This should be either purple or brown wire. Connect the blue wire to the wire you marked as unlock in step 1.
If all other wiring for your alarm or keyless entry is complete, the door locks should now operate with the remote control.

Looks like its a negative lock system, so the MES relay was overpowering the alarm. Looks like I should be using diagram B instead.
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