Gmc Code U1510
U1510 Meaning Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit MFG Manufacturer Specific codes, which have a '1' as their second digit to indicate they are unique to Cobrajet Registered Joined 3 Posts #4 Same problem for me, code U1510 show with my OBD reader Dealer have more specific code that guide