Electrical Drivers Door Switch issue

[syncrocrick]

So yesterday I replaced the window regulator on the driver's side on my 2003 X5 4.4 (for the second time...not sure of the quality of the aftermarket product...)

Anyway everything went well and now my driver side goes up and down smoothly.

However I have a new problem - the switches for the 3 other windows (passenger, rear) don't work anymore (they work fine from their respective doors). I also lost central locking. And I have an "Open door" message coming from the driver side. And there is no more illumination lights in the driver side switches panel (the little orange light)...

So I obviously have an electrical problem somewhere....would anyone know if this could all be related to a bad connection in the main black connector on the driver switches panel? or the panel itself?

It seems to have started happening as I was testing the new regulator with the switch.

[wpoll]

These switch modules are known to have two issues - water damage in the module itself and poor electrical connection.

As a first step, re-check all three electric plugs to the module - maybe even use a contact cleaner/lube spray on them.

If that doesn't sort this, you may need to open the module up to check for water damage - you may see corrosion on the circuit board etc.

[80stech]

[syncrocrick]

Thanks - it was raining outside today and did not get to look at it again. Hopefully tomorrow morning.

Been slowly bringing back my X5 4.4i back to top shape, and this is one of the last major things right now.

So far I have done in the last 12 months (most of it myself otherwise it would not make sense financially):

-New windshield
-New winter tires (was hard to find a set for staggered wheels)
-new complete front end (upper/lower ball joints, control arms, tie rod ends, etc)
-new front right cv axle
-new ABS module
-new radiator (twice)
-new coolant overflow tank
-new window regulator (twice)
-new front handles (both sides)
-new brakes 4 corners (pads and rotors)
-new valve cover gasket
-new spark plugs
-new ignition coils
-new alternator

The X5 has 170000 miles. I travel for work and rent a new vehicle every week from the Executive aisle at National. I have over 40 different rentals this year. Aside from a few exceptions, I feel like my X5 still drive better than most new cars I rent, so that's why I am putting some love into it...

[syncrocrick]

Problem solved! I went back today and look at it. As I suspected, the problem was related to one of the connectors behind the driver switch panel. I had focused on the black one but turned out to be the white one. I had to play with it for a good 15-20 minutes before I could be 100% certain.

Now everything works again.

Thanks everyone.

[wpoll]

Great work and thanks for updating the thread - it helps!