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Q: Power Lock and Hazard Flasher buttons do not work on 2005 BMW 325Ci

Both power lock and Hazard flasher buttons do not work when pushed. Fuses are good. Doors lock work with key remote only. Is it coincidental that both buttons do not work? Do both switches go to the Locking System Central Control Module Unit? I located it behind the glove box.
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You've done good investigative work, how comfortable are you are reading wiring diagrams and tracing circuits (also need a good volt/ohm meter. Autozone have some popular workshop manuals for free on line once you register (for free) on their website or there is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try
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I am not familiar enough with BMW to give you better advice perhaps post your question on a BMW specific website.
Thanks much. I have Mitchell and tried to test the switches via the Control Module, but the ground goes through the main computer so I could not get any readings. Thanks for your time.
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