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Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 121 (Engine Control System Self Diagnostics) >> Diagnostic Tests >> DTC P0121: Throttle Position Sensor Circuit Range/Performance >> Diagnosis & Repair
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Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Using Toyota hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.

TP sensor is defective. Replace TP sensor. See REMOVAL & INSTALLATION - V6 & V8 article.

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