I went and bought my own code reader (OBD II). Our trucks tend to code often and it has paid for itself. I hate seeing a CEL illuminated, even if I know what's causing it. My cost was about $150 at AutoZone.

Pete

'01 Rodeo Sport, 5 Speed Softie, Indy 4X rocker bars, OME 912's, Rancho 9000X's, Superwinch hubs, custom tube bumper with Warn 9000i , Flowmaster 50, TeraLow t-case gears, ARB front & rear lockers, TrXus MT's, Sway bar disconnects