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Home › Lexus › 1996 › SC 400 › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/Codes › Circuit Tests › DTC P1401 - Sub-Throttle Position (Sub-TP) Sensor Circuit Range/Performance Problem › Diagnosis & Repair

Diagnosis & Repair

If only DTC P1401 is displayed, replace SUB-TP sensor and retest. If other codes are displayed, diagnose and repair those codes first and retest.