Vehicle: '01 E39 540iA with 103k miles. Symptoms: While driving my car about 6 weeks ago, I noticed that my turn signals were not "blinking" on the dashboard, but the turn signals were on (and not blinking) on the exterior of my car. The turn signals all started working again after a few miles. This past week, the alternator died. My indie BMW shop replaced the alternator with a remanufactured Bosch unit, replaced the related pulleys, tensionors, etc and the car ran fine. The next day, my turn signals (and emergency flashers) stopped working during a 2 mile trip to lunch. This time, though, I had no turn signals (on the dash or outside) nor emergency flashers. But, I swear I think the pixels in the instrument cluster were "pulsing" (glowing brighter, then slightly dimmer) at the same cadence as the blinkers would normally flash!?! Then the lights all started working again (and the dash pixels stopped "pulsing") a half mile later, before I turned off the car. So on my way back from lunch I stopped by my mechanic's shop. When I described the symptoms with the strange turn signal/emergency flasher incident, he thought it could be the Light Control Module (LCM) and he briefly speculated that a bad LCM "could have taken out" the alternator. He plugged into the car's diagnostic system and ran a check for error codes and found none. He visually checked the battery and a few items under the hood, found no problems, pronounced the car ok and said I should just keep an eye on it, and sent me on my way. Question #1: Does the chain of events I have described (intermittent flasher problems and dead alternator) sound indicative of a bad LCM? Question #2: If it is the LCM, can I replace it myself and does some code in the car's computer system need to be re-set by a BMW dealer at the time the LCM is replaced? (I read something on another on-line DIY link that said a dealer had to "validate" or "initialize" a new LCM to the car or the car's computer would have some type of permanent error code, like a new odometer!?!) Question #3: If it is not the LCM, what other items should I check? I would appreciate any feedback. Having owned a few British cars years ago, I am a little sensitive to intermittent problems with automobile electrical systems. Thank you.