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Irogag, thanks for your very informative posts on board level repairs of the M535. I have started having some weird issues with my M535 where doors do not lock etc. I have changed both locks but that did not help. When I check input states, it incorrectly shows both doors as being closed and locked, frunk and engine compartment also as being closed when neither of these is the case. So the alarm module tries to lock but sees that they are already locked and does nothing other than make a brief buzzing sound. I can lock the driver door using the key and can unlock that using the fob. Both open and close positions of the key in the driver door show fine when monitored using PIWIS. There is no water damage. Where would you advise I should look? I do not think there is a problem with the relays as the problem has to do with the alarm module not seeing the correct state of many of the inputs. The capacitor visually looks fine and when I check it while in circuit using an ESR meter, shows as 200uF. Would appreciate any of your insight into this
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