91 Z28 Coolant Temp Sensor Code 15

Yesterday my '91 Z28 w/5.7L TPI started throwing code 15 for coolant temp sensor.

Is this a "good" code meaning it means what it says, or is this another one of those that says one thing but seldom means actually that?

Yes, I know it could be wire and not specifically the sensor, but I mean more like could it be something totally non-related?

If there is a problem in the CTS circuit the ECM will run the mixture like a rich pig, this is a detrimental factor in setting fuel trim. It's cheap and easy to replace, I'd just do it.

I had forgotten I had a factory service manual (don't drive the car much). Did the troubleshooting checks and it is the sensor. $15 should take care of it.

Replaced, tested, confirmed. Sensor was the fix.