If the battery posts shorted, that would remove power from the rest of the electrical system so nothing else would be damaged. Even if something else shorted, that isn't going to affect a sensor circuit.
The first step in diagnosing this is to identify the problem. The coolant temperature sensor circuit is a real simple one with just two wires. Two voltage readings must be compared with what is shown on the scanner. From those reading we can figure out where to go next.
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Sunday, September 13th, 2015 AT 9:48 PM