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Home >> Lexus >> 1995 >> LS 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - OBD-II >> Diagnostic Testing >> Code P0121: Throttle Position (TP) Sensor Circuit Range/Performance Problem >> Diagnosis & Repair Procedure
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Diagnosis & Repair Procedure

If only Code P0121 is displayed, replace TP sensor and retest. If other codes are displayed, diagnose and repair those codes first and retest.

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