Question about 2002 Chevrolet Impala
The headlights work on both high & low beam, however the dash lights & headlights blink. I can hear the relay switch clicking as well. Any suggestions.
This may be the start of a worse problem that the Impala eventually developes. The Body Control Module has a design flaw along with the Passlock anti-theft system. You may get away with just replacing the BCM for now. It needs to be reprogrammed at the dealer and the car will not start if you replace the BCM without reprogramming it. I would also recommend against replacing it with a remanufactured one. Repair cost is going to be around $500 at the dealer.
If the Passlock system is also at fault, add another $500 for a new ignition switch and cylinder. If you haven't experienced random starting problems yet, they are coming soon. When you turn the key, nothing happens. I thought my 2002 Impala may have been immune to these problems that I've heard about constantly, however, at 90,000 miles, it became "possessed". The symptoms started slowly and got worse. Beside the interior lights flashing like strobs in the middle of the night (while the car was not running), the headlights would occasionally click off and on a few times while I was driving at night.
The relay switch you hear clicking is the Battery Rundown Protection relay. I'm suprised your battery hasn't drained to the point where the car will not start in the morning.
Posted on Mar 18, 2009
This is not an answer , but it is an experiment to stop the clicking , lights from flashing .
I pulled the BRDR [ battery rundown relay ] and the flashing went away , but the inside light do not light , but all the instrument lights do and the headlights do not flash .
Still looking for a fix , besides replacing the body computer ?
Posted on Mar 01, 2010
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