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APP Sensor Signal Inspection

NOTE:
  • This procedure checks the APP sensor in it fully closed position. In any other position, the APP sensor stores the DTCs which are covered in other troubleshooting procedure.
  • Check for Temporary DTCs or DTCs with the HDS before doing this procedure. If any DTCs are indicated, troubleshoot them first, then do this procedure.
  • Press the accelerator pedal several times to check its operation. If it does not operate smoothly, check the pedal, the throttle cable, and the APP sensor individually. If you find a problem in one of them, replace the part(s) that cause the problem.
  1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
  2. Turn the ignition switch ON (II).
  3. Make sure the accelerator pedal is not pressed, then check the APP SENSOR in the DATA LIST with the HDS.
    • If it is below 2%, the APP sensor is OK.
    • If it is above 2%, adjust the throttle cable (see THROTTLE CABLE ADJUSTMENT ), then go to step 4.
  4. Make sure the accelerator pedal is not pressed, then check the APP SENSOR in the DATA LIST with the HDS.
    • If it is below 2%, the APP sensor is OK.
    • If it is above 2%, update the PCM if it does not have the latest software, or substitute a known-good PCM (see PCM UPDATING AND SUBSTITUTION FOR TESTING ), then go to step 5.
  5. Make sure the accelerator pedal is not pressed, then check the APP SENSOR in the DATA LIST with the HDS.
    • If it is below 2 %, the APP sensor is OK.
    • If it is above 2 %, replace the APP sensor (see APP Sensor Replacement ), then go to step  1.
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