LEMON Manuals
: Even more car manuals for everyone: 1960-2025
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Lexus
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2009
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GX 470
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control (SFI) System (Diagnostic Codes (P0010-P0505))
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SFI System
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DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem
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Caution / Notice / Hint
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Caution / Notice / Hint
HINT:
This is the purpose of the throttle position sensor.