Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm di eg cip0121

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DI-42
                                                  DIAGNOSTICS       -   ENGINE
                                                                                                                           DI6V1-04




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

CIRCUIT DESCRIPTION
Refer to DTC P0120 (Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction) on page DI-37.
   DTC No.                            Detection Item                                                        Trouble Area
               After the vehicle speed has been exceeded 30 km/h (19 mph)
              even once, the output value of the throttle position sensor is
                                                                               S Throttle position sensor
   P0121      out of the applicable range while the vehicle speed between 30
                                                                               S ECM
              km/h (19 mph) and 0 km/h (0 mph).
               (2 trip detection logic)

INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel ratio lean or rich, etc.
at the time of the malfunction.

   1       Are there any other codes (besides DTC P0121) being output?


                                                           YES          Go to relevant DTC chart (See page DI-14 ).


   NO



  Replace throttle position sensor.




 2002 ECHO (RM884U)

                                                                                  Author :                       Date :      212

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