2012 3rd Gen Codes P0117, P 148F

Probably heading down the right track but I wouldn't want to be paying that for that old car but then again that's probably pretty normal in your area so if you're not willing to pick up a wrench then that's what you got to do.

 

P148F means the water pump motor was spinning too fast, which means, for one reason or another, it wasn't pumping water. Either the impeller in the pump had broken, or there had been coolant lost and the pump was spinning in air.

Either way, if the water pump isn't pumping water, the engine is likely to overheat. The P0117 indicates an electrically low input from the engine temperature sensor circuit. Because the temperature sensor is a negative-temperature-coefficient thermistor (its resistance gets lower as the engine gets hotter), if you see a P0117 code, it either means the sensor wiring is shorted together, or the wiring is fine and the engine is very hot (like in the neighborhood of 140 ℃ or 284 ℉, ouch!).

Notice that if you have an OBD tool set up to show you engine coolant temperature, it might not look super hot when you have a P0117 showing. That's because the ECM assumes the sensor or wiring might be shorted, and it just substitutes an 80 ℃ reading instead of believing the signal. But if you ever have both a non-pumping water pump and a P0117, maybe you should consider that the signal from the temp sensor could be for real.

 

The car will shut down at 224F.

 

It will stop the engine (at 221 ℉, 105 ℃), if there is one of the original water pump codes showing; P261B, C, or D.

P148F is also a water pump code, but it was added for model year 2011, and I don't know for sure if the engine-stop rule was updated to include it. That might be mentioned in a 2011 repair manual, which I don't have readily at hand.