LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2009 >> GS 450h >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control (SFI) System (Diagnostic Codes (P0010-P0365)) >> SFI System >> DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem >> Procedure

DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem: Procedure

  1. CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0121) 
    1. Put the engine in inspection mode. Refer to INSPECTION MODE PROCEDURE .
    2. Connect the Techstream to the DLC3.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
    5. Read the DTC.

      Result

      Display (DTC output) Proceed to
      P0121 A
      P0121 and other DTCs B

    B → GO TO DTC CHART 

    A → REPLACE THROTTLE BODY