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Home >> Lexus >> 2000 >> SC 300 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1128: Throttle Control Motor Lock Malfunction >> Diagnosis & Repair

Diagnosis & Repair

Check throttle control motor. See DTC P1125: THROTTLE CONTROL MOTOR CIRCUIT MALFUNCTION . Replace throttle control motor as necessary. If throttle control motor is okay, remove intake air duct. Visually inspect throttle valve for foreign material. If throttle valve is clean, replace throttle body.