FixVault
Home
›
Lexus
›
1997
›
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
›
Condition
DTC P0121 - Throttle Position (TP) Sensor Circuit Range/Performance Problem: Condition
DTC is set when TP sensor voltage is out of range. Possible cause is:
TP sensor.