DTC P1121: TP Sensor Signal Lower Than Expected

NOTE: Before you troubleshoot, record all freeze data and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

Turn the ignition switch ON (II).
Check the throttle position with a scan tool or the HDS.
Is 9.4% or more indicated when the throttle is fully opened?
1. YES - Intermittent failure, system is OK at this time.
2. NO - Replace the throttle body (see THROTTLE BODY REMOVAL/INSTALLATION ).