Another low coolant light thread

[dhirocz]

Grrr....
*DING*DING*DING*DING*DING*

...I swear I'm hearing this in my dreams now.

I replaced the pigtail to the sensor harness, which was in bad shape. No change.

I found a cut in the wiring and some corrosion so it was repaired. No change.

I drained the tank and looked around in it with a boroscope. I didn't see this floating pill...or anything else either. Just a big empty tank.

I'm wondering if this module they sent me doesn't match the resistance values of the sensor, or if the resistance values may be operating in a different range vs what the ECM expects to see...

It occasionally goes away, but so far, no definite fix...