P1121
DTC P1121: TP Sensor Signal Lower Than Expected1. Turn the ignition switch ON (II).
2. Check the TP SENSOR in the DATA LIST with the HDS.
Is 3.6 °, 13.6 % or 0.68 V or higher indicated when the throttle is fully opened?
YES - Intermittent failure system is OK at this time.
NO - Replace the throttle body.