So i have recently come into the possesion of a 2003 impala 3.4l. When the car is running everything is fine but when i shut it off the BRP(Battery Rundown Protection) Relay clicks rapidly and endlessly. Cabin lights also flicker on and off and after about an hour the battery dies.. but if i start the car this all goes away... low on funds, any suggestions?

 

check for broken wires to the door switch in the door harness.

 

Which door switch, the lock switches?

 

the switch that tells the computer if the door is shut or not

 

Ok ill do some digging and get back to you thanks

 

So the door switches work fine but i did happen to notice that my lock switches only work when the car is running.. could that mean anything?

 

yup. definitely means something.

 

I figured out the locks were because i took that relay out but still no luck on finding the issue thanks for your patience