Originally Posted by slowroll

Your questions are surprising being you are an automotive engineer, bosch / teves brakes systems were found a variety of cars including Renaults (Re Know), Chryslers, Pre Government Motors, Porsche... Almost all manufactures have a BCM of some sort on cars today. GM and Chrysler have had them on various models for 15 yrs or more. Chrysler decided a Body Control Module should control everything on the vehicle. Government Motors is also into excessive integrated electronics. Intermittent battery reset codes are not uncommon. However, when a concern occurs and only module reset code(s) is set. Power and ground circuits are where to look. Cadillacs are very sensitive in regards to ground circuits. If you don't know ask and we will help. Just don't try belittle or B.S. that your something you are not. You have bought a high maintenance lady and you are likely to be never be bored, she will always want your money and attention.