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.
I have a 2002 Chevy Impala that has been a complete nightmare. I have had the ignition switch changed and am now on to the BCM. Luckily my boyfriend is a mechanic and is changing the BCM in the parking lot of the Chevy dealership, so I only have to pay for the reprograming.
No more Chevy's for me!
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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 ?
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My 2002 Impala has headlights and reverse lights that flash. The battery light also flashes off and on. When the car is on or off it is flashing. While the car is on and the headlights are on it will stop, but as soon as you turn the lights off they flash agian. Seems to be worse with humidity (melting snow) and warm weather- today it started as soon as the car turned on- before you had to drive a while to get it to flash.
how to replace headlight switch 2002 Impala
Whqn the head lights are on the dash light will not tuen on the high beam light wirks and the odometer light work
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