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Home >> Lexus >> 2003 >> ES 300 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance >> Circuit Description
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Circuit Description

For circuit description, see Circuit Description  under DTCs P2120, P2122, P2123, P2125, P2127, P2128 & P2138. DTC is set when difference between VPA and VPA2 is out of threshold for 2 seconds and/or IDL is off. Possible causes are:

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