2000 Honda S2000FACTORY OEM SERVICE PROCEDURE

Throttle Position Sensor Signal Inspection

NOTE:
  • This procedure checks the APP sensor in its fully closed position. In any other position, the APP sensor stores DTCs which are covered in other troubleshooting procedures.
  • 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 movement. If it does not move smoothly, check the pedal, the throttle cable, and the throttle linkage individually. If you find a problem in one of them, replace the part(s) that caused the problem.
  1. Connect the HDS or an OBD II scan tool to the data link connector (DLC) (A). On 2000-2001 models, the DLC is under the passenger's side of the dashboard. On 2002-2005 models, the DLC is behind the driver's side of the front console.
    Fig 1: Connecting HDS Or An OBD II Scan Tool To Data Link Connector (DLC)
    G03692801Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Turn the ignition switch ON (II).
  3. Make sure the accelerator pedal is not pressed, then check the TP SENSOR in the DATA LIST with the HDS.
    • If it is below 0.5 V, the throttle position sensor is OK.
    • If it is above 0.5 V, 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 TP SENSOR in the DATA LIST with the HDS.
  5. Make sure the accelerator pedal is not pressed, then check the TP SENSOR in the DATA LIST with the HDS.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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