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Home >> Lexus >> 2006 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> System >> SFI System - Diagnostics >> DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem >> Inspection Procedure
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Inspection Procedure

HINT:

Read freeze frame data using the hand-held tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

  1. REPLACE THROTTLE W/MOTOR BODY ASSY (SEE  REPLACEMENT  )