Impala Forums banner

1 - 2 of 2 Posts

·
Registered
Joined
·
2 Posts
Discussion Starter #1 (Edited)
I just bought this car so i dont have any history on it. I bought knowing it had electrical issues.
Bought a new battery and when i connect it the headlight and taillights stay on, cant shut them off.
Turn the key and nothing only sound i can hear is the HVAC blend door trying to cycle. If you push the info button it will show the odometer then go out.
Same with the radio it will only display time for a few seconds after info button is hit. I know the ECM, BCM are powering up because with the key on and can i can communicate with code reader and only codes that come up are the rear window defrost and HVAC bled door actuator. Battery cables are clean all the grounds to the frame and engine are clean and tight.

Got me kinda stumped fuses are all good maybe a bad relay...
 

·
Registered
Joined
·
2 Posts
Discussion Starter #2
If i swap out the BCM from another car does it need to be programmed? Its same yr make model. I just want to see if the dash lights up and it acts normal before i spent the money to get it flashed.
 
1 - 2 of 2 Posts
Top