[Fred-Inge]

Have some issues with my car, First, there was a message says "service stability systems", when that came the gear shift would not operate, the button on the level was locked after the message come, then i discovered that if i turn off the car, started it again and hurry to move it out of park it worked as normal, then i also have another problem every time it is winter and started to be cold, the alarm starts in the middle of the night, last winter i just removed the fuze to the Horn, and it worked, but now i have seen something here earlier that try to disconnect the battery could might help with the service message about the stability system, so i did try that disconnected the + pole, and waited 5 - 15 min and put it back in, then my serious problems started, the alarm went crazy, the fuze for the horn was out but it was beeping from somewhere in the trunk, and whatever i did nothing helped, then i did try to reset the alarm system, as i could see on google search i should live the car with ignition on, and remove the ECM fuze for 10 min, so ok i did that, then the alarm continued, all the light went on and the car locked all doors, (and i could hear that i forgot to turn off the heat so the fan went on full inside) well after 5 min the alarm stopped beeping, and after 10 min i put the fuze back in, and the lights went off, but the doors where still locked so i had to pick up my spare keys to unlock and get in the car, ater that my car i more or less dead (except for the alarm whom starts beeping from the trunk every time i connect the battery) the fuze for the horn is also back in place but the alarm does not give any sound from the Horn any more for some reason, well if i turn on the ignition the lights on the dash comes on for a moment, the infotainment display say nothing, and if i try to start all light and all just dies (except for that darn alarm) i did try to measure my battery but first all the problem with the alarm, then 10 min + with the fan working on high speed, and all lights on and ignition on i guess it has drained it a lot, but it still reads 11,20 on the multimeter, and i would believe that is enough to start up, any one have any idea what i can do?

 

[Byrdman]

that's a lot of info to sort thru. First thing is whenever you disconnect the battery, it's always Negative first, then positive. Reconnect positive first, then negative
What does 11,20 mean? If you mean 11.2Volts at the battery, there's a problem. With no load a good battery should read 12.6 volts. Submariner409 has a battery voltage chart but I can't find it right now.
Have you pulled DTC codes? Any big auto parts store will do it for free.
If you have codes, current or history, post them here WITH definitions. Codes without definitions are meaningless. There are several thousand possible codes, we haven't memorized all of them.

 

[CSIMME01]

I sounds like your car will not start or drive right now. The first thing I would do is pull the battery out of the vehicle and take it somewhere and have it charged and tested to see if it is good. Once you know the battery is good, start diagnosis from there. It would be helpfull to have a battery charger you could connect to the battery to keep it charged as you continue to work on the car. If the alarm system keeps going off you will need to have someone connect to the vehicles diagnostics to see what is causing the alarm to go off. It might be as simple as having to relearn the keys to the vehicle. It looks like you are in Denmark so I don't know what local auto parts stores are like or what they can do.
Good luck.

 

[Fred-Inge]

that's a lot of info to sort thru. First thing is whenever you disconnect the battery, it's always Negative first, then positive. Reconnect positive first, then negative
What does 11,20 mean? If you mean 11.2Volts at the battery, there's a problem. With no load a good battery should read 12.6 volts. Submariner409 has a battery voltage chart but I can't find it right now.
Have you pulled DTC codes? Any big auto parts store will do it for free.
If you have codes, current or history, post them here WITH definitions. Codes without definitions are meaningless. There are several thousand possible codes, we haven't memorized all of them.

Ok thanks, cant get any thing for free here, i live in Denmark in Europe and the problem is the Cadillac import company here cant even find me the right oil filter, so i have to order from Rockauto.com and shipped from the us, but i will start with charging the battery, and then go from there and see what i can find out i guess i start connecting the positive first and than the negative when installing the battery again?

 

[RyanY]

Ok thanks, cant get any thing for free here, i live in Denmark in Europe and the problem is the Cadillac import company here cant even find me the right oil filter, so i have to order from Rockauto.com and shipped from the us, but i will start with charging the battery, and then go from there and see what i can find out i guess i start connecting the positive first and than the negative when installing the battery again?

That is correct. When reinstalling a battery the pos should be reconnected first, then neg. This prevents the possiblity of shorting the circuit if the wrench touches the fender while the pos terminal is being connected.

Regarding oil filters, I would check Amazon for options if the local stores do not have them.

 

[Ackchyually]

Have some issues with my car, First, there was a message says "service stability systems", when that came the gear shift would not operate, the button on the level was locked after the message come, then i discovered that if i turn off the car, started it again and hurry to move it out of park it worked as normal, then i also have another problem every time it is winter and started to be cold, the alarm starts in the middle of the night, last winter i just removed the fuze to the Horn, and it worked, but now i have seen something here earlier that try to disconnect the battery could might help with the service message about the stability system, so i did try that disconnected the + pole, and waited 5 - 15 min and put it back in, then my serious problems started, the alarm went crazy, the fuze for the horn was out but it was beeping from somewhere in the trunk, and whatever i did nothing helped, then i did try to reset the alarm system, as i could see on google search i should live the car with ignition on, and remove the ECM fuze for 10 min, so ok i did that, then the alarm continued, all the light went on and the car locked all doors, (and i could hear that i forgot to turn off the heat so the fan went on full inside) well after 5 min the alarm stopped beeping, and after 10 min i put the fuze back in, and the lights went off, but the doors where still locked so i had to pick up my spare keys to unlock and get in the car, ater that my car i more or less dead (except for the alarm whom starts beeping from the trunk every time i connect the battery) the fuze for the horn is also back in place but the alarm does not give any sound from the Horn any more for some reason, well if i turn on the ignition the lights on the dash comes on for a moment, the infotainment display say nothing, and if i try to start all light and all just dies (except for that darn alarm) i did try to measure my battery but first all the problem with the alarm, then 10 min + with the fan working on high speed, and all lights on and ignition on i guess it has drained it a lot, but it still reads 11,20 on the multimeter, and i would believe that is enough to start up, any one have any idea what i can do?

Many electrical systems are processed through the ECM. One way to check if the ECM is powering on correctly is to verify that when the key is turned from "off" to "on" the orange check engine light should illuminate for a few seconds then turn off. If this isn't occuring then it could indicate a problem in the ECM. My 05 had an internal ECM issue that manifested itself as a "service theft system" message on the display. In reality the theft system was functioning as intended. From what I understand these cars are notorious for ECM faults so this is a quick and worthwhile test.

 

[Fred-Inge]

That is correct. When reinstalling a battery the pos should be reconnected first, then neg. This prevents the possiblity of shorting the circuit if the wrench touches the fender while the pos terminal is being connected.

Regarding oil filters, I would check Amazon for options if the local stores do not have them.

Thanks (have been away at work all week) but now i have charged the battery on the car, after charging it measured 12,7V, and then connected the battery (the right way this time) but the alarm sound from the trunk is still on, started as soon as i connected the ground on the battery, but there is no more messages than usual that service stability system is still there but that is all, you have any idea on how i can stop that alarm?

 

[Fred-Inge]

Thanks (have been away at work all week) but now i have charged the battery on the car, after charging it measured 12,7V, and then connected the battery (the right way this time) but the alarm sound from the trunk is still on, started as soon as i connected the ground on the battery, but there is no more messages than usual that service stability system is still there but that is all, you have any idea on how i can stop that alarm?

By the way the car started just fine now with power on :-D