Question

What causes the codes P0106, P0302, P1680, and P0526 on my 2012 GMC Envoy?

Answer 1

Here is a link to the codes pages for more information. It looks like none of the codes are related. It would be best if you started by fixing the engine code P0302.

P0106 GMC Code - Manifold Absolute Pressure Performance
Read more: https://www.autocodes.com/p0106_gmc.html

P0302 GMC Code - Cylinder 2 Misfire Detected
Read more: https://www.autocodes.com/p0302_gmc.html

P0526 GMC Code - Cooling Fan Speed Sensor Circuit
Read more: https://www.autocodes.com/p0526_gmc.html

P1680 GMC Code - Control Module Not Programmed
Read more: https://www.autocodes.com/p1680_gmc.html