P1131 — Throttle Position (Narrow Range) Sensor Circuit Malfunction
What it means
P1131 is an OBD-II diagnostic trouble code: Throttle Position (Narrow Range) Sensor Circuit Malfunction.
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.