Brothers and partners in crime,
Just bought a 2003 LS430. I really enjoy driving the car; its my first Lexus. Must say, the engine and car is ultra quiet when compared to my old infiniti Q45. However, the LS has a problem that is annoying the s$*t out of me. At night, as soon as I start the engine, the taillamp failure light comes on the dash with the red exclamation mark. I don't need to step on the brake for this to happen, so its one of the taillights that's causing the failure light.
I changed EVERY bulb in the back, inclduing the turn signals making sure that it is the right wattage for the job. All bulbs are high quality from Autozone. Every single light is lite up in the back, I verified this maybe 50 times already. The sign still comes on. I measured the voltage at the taillights, all are reading at 12.15 volts.
Interesting point - the light does NOT come on if I turn the key to the start position, only when I crank and start the engine, does the warning come on.
I can't figure this out. Someone else must have had this problem - how do I fix this? Any help would be much appreciated.
C