DTC P0121: Throttle Position (TP) Sensor Circuit Range/Performance Problem (High Input)

Perform basic diagnostic procedure. See BASIC DIAGNOSTIC PROCEDURE  . If DTC P0122 and/or P0123 exist, diagnose and repair those DTCs. Do not diagnose DTC P0121. If DTC P0121 is only DTC set, replace TP sensor. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES  and VERIFICATION PROCEDURE  .