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post #1 of (permalink) Old 03-09-2019 Thread Starter
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car won't start after radio change

2005 impala. Installed new radio over several days. Had the battery disconnected thru most of this but i'm sure we ran the battery down. We have recharged the battery but now the car will not start. when we turn the key on to start but all it does is click. When the key goes back to run position the information lights flash - Battery, Security and service engine. Is this a "BCM", "Ignition" or a "Passcode" issue?
I have been dealing with this for a week now. I have now put the original radio back in. Now it will all that will come on the stock radio is the clock. Radio will not turn on and play.
Where should I go next?
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post #2 of (permalink) Old 03-09-2019
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Have the battery tested to make sure its ok.
A bad battery will cause all sorts of problems.


04 Impala LS

Engine: ZZP PCM, ZZP Downpipe, Xcelerator Resonator, Dual Xcelerator Mufflers, 4" Stainless tips, 180 t-stat, Shorter Dogbones, Mount Spacers, Optima Red Top Battery
Trans/Drivetrain: TransGo shift kit + preloaded accumulator
Suspension: BC Racing coilovers, Police LCAs, Police Rotors and Pads, Boxed trailing arms, Dorman front solid sway bar
Exterior: LED Headlights, Red LED license plate lights and side markers
Blue LED cluster+HVAC+door switches, LED interior
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