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Home >> Lexus >> 2024 >> RC 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (Engine Control System (2GR-FSE) - Diagnostic Codes (5 Of 5) & Circuit Tests) >> SFI System >> DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance [09/2014 - 11/2017] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2017 Lexus RC 350, 2017 Lexus RC 300, 2016 Lexus RC 350, 2016 Lexus RC 300, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.
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Monitor runs whenever the following DTCs are not stored None
Either of the following conditions is met 1 or 2
1. Engine switch On (IG)
2. Command to electronic throttle actuator power On
Accelerator pedal position sensor circuit fail (P2120, P2122, P2123, P2125, P2127, P2128, P2138) Not detected