DTC P1121: TP Sensor Signal Lower Than Expected (2002-2004 models)

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

Turn the ignition switch ON (II).
Check the throttle position with a scan tool or the HDS.
Is 12.6%, 0.6 V * ¹ (12.9%, 0.6 V) * ² , or higher indicated when the throttle is fully opened?
1. YES - Intermittent failure, system is OK at this time.
2. NO - Replace the throttle body, K20A2 engine (see THROTTLE BODY REMOVAL/INSTALLATION ), K20A3 engine (see K20A3 ENGINE ).