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Home >> Lexus >> 1996 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Circuit Tests >> DTC P0121 - Throttle Position (TP) Sensor Circuit Range/Performance Problem >> Diagnosis & Repair
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Diagnosis & Repair

If only DTC 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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