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2020 GMC Sierra Denali L5p Cooling Fan Issues

JR Branche
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JR Branche New Member

JR Branche

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Basically just got my truck back after 2 weeks in service for the EGR valve. 3 days after purchase nonetheless. NOW I have codes P0483: Cooling fan rationality check malfunction and P0526: Cooling fan speed sensor circuit.  Loss of cool A/C at low speed or stop but once over 50, A/C gets cold again.  Anyone else deal with this?  I will update after I take it to the dealer in the morning.

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