General Motors reports that some 1997-2013 Chevy Corvettes may illuminate the ABS and traction control lights and log trouble codes C0035/C1225 and/or C0040/C1226 in computer memory.
According to the car maker, the trouble typically occurs when the car is driven over bumps at speeds below 35 mph, and could be due to the installation of aftermarket braided stainless-steel brakes hoses. The stainless steel hoses apparently cause electrical interference in the front ABS wheel speed sensor signals.
The only way to make an accurate diagnosis is to remove the aftermarket hoses and install a set of OE brake lines. If the warning lights stay off and the codes don't reset you've found the problem. If the lights come back on, continue troubleshooting until the speed sensor signal issues are resolved.
"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].