U1308 — SCP (J1850) Invalid or Missing Data for Function Read Engine Torque
What it means
U1308 is an OBD-II diagnostic trouble code: SCP (J1850) Invalid or Missing Data for Function Read Engine Torque.
Typical fix
Confirm the code with an OBD-II scanner, then inspect the component or circuit named above. Consult a vehicle-specific service manual for the full diagnostic and repair procedure.