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Posts Tagged: p0526

P0526 Cooling fan speed sensor circuit

Fix code P0526 Cooling fan speed sensor circuit GM has issued a service bulletin to address a P0526 Cooling fan speed sensor circuit trouble code on the following vehicles: 2002-04 Olds Bravadas 2002-05 Chevy TrailBlazers & TrailBlazer EXTs, GMC Envoys & Envoy XLs 2004-05 Buick Rainiers and GMC Envoy XUVs 2005 GMC Envoy Denalis & Envoy XL Denalis The P0526 Cooling fan speed sensor circuit problem appears because of damaged wires in the cooling fan harness. The damage occurs because the harness pulls out of its plastic protective sleeve, exposing the insulation … Read More


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