P1121

DTC P1121: TP Sensor Signal Lower Than Expected

NOTE: Information marked with *1 applies to K20A3 engine; *2 applies to K20A2 engine.

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

Is 12.6 %, 0.6 V*1 (12.9 %, 0.6 V)*2 or higher indicated when the throttle is fully opened?

YES - Intermittent failure, system is OK at this time.

NO - Replace the TP sensor.