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Home >> Lexus >> 2004 >> IS 300 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0121: Throttle Position (TP) Sensor/Switch "A" Circuit Range/Performance Fault >> Diagnostic Aids
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Diagnostic Aids

WARNING: This page is about a different car, the 2003 Lexus GS 430. However, it is still accessible from the selected car via links, so may be relevant.

Using scan tool, read freeze frame data. Freeze frame records engine conditions when malfunction is detected.

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