Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, Codes in Cadillac Escalade Forums; Asked a non Cadillac garage to pull my codes and here is what he found. In no particular order. Engine ...
Asked a non Cadillac garage to pull my codes and here is what he found. In no particular order. Engine / EVO auto ride , C0660 , exhaust valve circuit , U 1300 class 2 data link low. If this makes sense to anyone , please explain it to me. Thanks.
Agree compressor is the culprit. But... before spending big bucks on a compressor whether GM, Arnott, or Dorman make sure everything else is good. Like all the air lines, and your rear shocks. This could all end up costing a lot of money. Weigh your options and decide if you want to keep the air/level ride system with electronic ride control or convert to a passive shock system. There are as many arguments for keeping factory as there are for converting. It's your money and your choice. Search on here what all others have done and choose what suits your needs. I personally tow a 28' camper and kept stock shocks, but disabled the electronic ride control and air compressor but added the Airlift 1000 airbags to my rear coil springs.Works wonderful for me and I have 22" rims. My setup may not work for you if you never load it heavy like I do.
Latest update. The starting issue is a drain on the battery....The alternator isn;t the problem. The main engine computer is allowing 3.4 V out on the charge control circuit (that plugs into the alternator). Either the computer is bad or you have a bad ground. I'll keep you posted.
Well the repair guy says I need a new ECM. Apparently the ECM is telling the alternator to charge the battery when the truck is shut off. This leads to an open circuit and drains the battery. Does this sound correct to anyone ?