Some 2006-07 Kia Sedona minivans built before March 8, 2006, may turn on the ABS/ESC warning lamp and log trouble codes such as C2402 or U0001 in the ABS module. In some cases, you may find that your scan tool can't communicate with the module at all.
Kia attributes all these troubles to poor electrical integrity at ground G19 and/or G20. Removing the ground lug (both grounds culminate at a single lug) and cleaning the lug, its mating surface and self-tapping retaining screw should eliminate the condition in short order. For your information, you'll find the ground lug just behind the ABS computer, at the left side inner chassis panel.
"Factory Fixes" is written by Jim DePalma, a 30-year veteran of the auto repair business who has served stints as a service manager, parts manager and ASE-certified technician. His column provides vehicle manufacturers' authentic factory technical service bulletins (TSBs) that have been condensed for easier reading. Mr. DePalma advises that techs always check with a dealer or repair information system for the latest revisions before starting to work on a vehicle. He can be reached via e-mail at [email protected].