can i use a jumper wire to draw trouble code on a 2003 toyota corolla
I sure you can't on the new system., the old OBDi system, pre 1995 you could. Your vehicle has OBDii and if money is tight you can go to Autozone and get them read for free, or purchase a scan tool. The smaller ones can be found online for around $30.
Search Toyota Corolla Questions
Toyota Corolla Experts
Related Models For Sale
Used Cars For Sale