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A/C blowing warm air

RandB

Member
Joined
Feb 11, 2026
Messages
6
Location
Florida
My XLR/V(s)
2007 Black XLR
A/C was working perfectly till I replaced my steering rack and did not fill the coolant all the way. Was driving along and temp gauge shot up and A/C got warm, so I pulled into part store and got coolant and coolant temps are good now. But am getting a B0159 code and no cold air, outside temp on radio and tech 2 always reads 75 degrees, even after I replaced the sensor.
I read someone fixed heir issue by replacing the thermostat, but I cannot see how mine getting stuck open would cause that.
So anyone have a B0159 and if so, how did you fix it.
 

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