Questions & Answers for: cpu battery replacement alarm

battery out and replace it, the stereo, alarm, presets for seats, etc, get deleted. You need to go to a Chevy dealer or a shop that can flash the C.P.U. to fix the problem. Sorry, but that's the "ONLY

...battery, but unless I am there I would not suggest doing it by yourself. In any event, find the alarm cpu/module, follow the wiring to the relay that operates starter/interrupt, check wiring and/or ...

...or disconnect the alarm. Forget about the alarm . The problem is your trying to jump start a dead battery. Replace the battery and reset the cpu with a code reader and the problem should be

...I just replaced the PCM fuse and then the next day the battery it started happening after I replaced the battery. reset the CPU as the program may have been corrupted by the battery change

battery sometimes the CPU program is corrupted . use a code reader to reset CPU and go from there. There may be a power problem causing the alarm and other things to have a problem. Using a test light

(broken timing belt/chain). Check that the immobiliser is working as a disconnected battery ( starter replacement) will corrupt the CPU including the alarm systems . Use a code reader to reset the CPU

...the ground cable but I made sure it was tight when I put it all back together try using a scanner to reset the CPU program as removing the battery often corrupts the CPU program and alarm

won't work after I replace the car battery (well Pep-Boys replaced the battery). My alarm won't activate. after replacing the battery ,to overcome problems try resetting the CPU program with a scanner

...sound anymore since last battery replacement. I suspect that during the battery replacement that the CPU program was corrupted . I suggest that a scanner be used to reset the program and go from ...

battery it is possible to corrupt the CPU program where the alarm is located. Constant removing of the lead fixes it immediately but not the corrupted program. Try using a scanner to reset the program