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I have been troubleshooting an HVAC trouble code in a 95 rmw via the HVAC headunit.
My sunload sensor (18) is reading -115 to -117 (there appears to be a - before the numbers) today in the evening and during the dark. The sticky says it should be 0-255.
I suspect it should not be negative and it should be moving around a little more as the light changes.
Any help is appreciated.

 

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I have checked this a few times recently, it is usually a negative number, once in awhile it transitions from -100 to 190ish on sunny days. The sun is at a low angle here this time of year, but I don't expect negative readings if it supposed to 0-255.
Has anyone else seen negative sunload sensor numbers?