[neversaydie]

There may be hope. Never say die. The PO715 code indicates a Transmission Input Speed Sensor malfunction. The PO700 code indicates a Transmission Control System Malfunction. The other codes indicate Gear Ratio Incorrect. (e.g. PO731 indicates 1st gear Gear Ration Incorrect) First the bad news. If the gear ratios are in fact incorrect, then the gears have worn out and you're looking at getting your transmission rebuilt or replaced. (Big Bucks) If the TCS is disfunctional it needs to be replaced. (A Couple Hundred Bucks) If the Input Speed Sensor is bad it will cost about $25 for a new one. Now the goods news. This automatic transmission system was designed to automatically put your car in 2nd gear if a transmission fault code is detected. This allows you to limp to a service station for repairs. Kind of odd but that's just the way it is and it beats completely distroying your transmission if the gears are worn out. DON'T TRY TO MAKE THE CAR GO FASTER. You may damage the transmission more and possibly your engine. For about $25, a new Input Speed Sensor may make all the codes disappear and get your car running normal. Disconnect the battery to clear the stored fault codes and then replace the sensor. With a faulty speed sensor the system cannot accurately detect correct gear ratios and being linked to the TCS fault codes will be thrown for this as well. Never Say Die.