1996 Pontiac Grand Am "cpu battery alarm system" Questions

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

...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

cpu. Recently bought new battery, hooked it up and alarm went off, alarm horn and lights flashed, door key switch shut it down eventually, question: how is this even possible when the alarm module and

(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

...it on the alarm started going off and security sytem wont let me start car. try using a scanner 9code reader to reset the CPU program as it sound like the program is corrupted from the battery

...battery removal will affect the CPU program which controls the immobiliser as some times the power surge on reconnection causes this. Useing a scanner to reset the CPU program should fix the ...

CPU units are very easy to kill when the battery is jumped the wrong way. They do not like reverse poleage and generally it fries them inside . I suggest that you to get a good one from the wreckers (

...to check the battery after that use a scan tool to reset the ECM program as the CPU is corrupted Could be the security/immobiliser system. Could be the system has amnesia and forgotten the

...battery cable, then leave it off for about 30 minutes. This will make the power in the CPU drain, which will force the system to reset itself the next time it comes on. How to turn off alarm on ...

...car down to turn off alarm system that may cost $300-$400. anyone know another way? please help! Try resetting the cpu with a fault reader machine . That should reset all the items you have