P1121

DTC P1121: TP Sensor Signal Lower Than Expected

1. Turn the ignition switch ON (II).
2. Check the throttle position with the scan tool.

Is 14.1% (F23A1, F23A4 engine) or 13.3% (F23A5 engine) or higher indicated when the throttle is fully opened?

YES Intermittent failure, system is OK at this time.

NO - Replace the throttle body (The TP sensor is not available separately.).