You will want to have the California Smog Check Referee's Office smog check your Toyota SR5. If in fact the Toyota dealership has discontinued your Toyota truck's wiring harness and the dealership had no choice but to install another version of the harness (and assuming your Toyota trucks passes a 2nd smog check at the Referee's Office) they will more than likely issue you a smog check waiver or place a sticker on your vehicle "OK"ing the new wiring harness. Call the state referee at (800) 622-7733.