GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Accelerator Pedal Position Sensor Replacement

Removal Procedure

    Object Number: 1704152 Size: SH

    Caution: Handle the electronic throttle control components carefully. Use cleanliness in order to prevent damage. Do not drop the electronic throttle control components. Do not roughly handle the electronic throttle control components. Do not immerse the electronic throttle control components in cleaning solvents of any type.

  1. Remove the knee bolster. Refer to Knee Bolster Replacement.
  2. Push down the small tab and disconnect the accelerator pedal position (APP) sensor electrical connector (1).

    3. Object Number: 1704147 Size: SH
  3. Remove the accelerator pedal bolts.
  4. Remove the accelerator pedal.

Installation Procedure

    Object Number: 1704147 Size: SH
  1. Position the accelerator pedal to the accelerator pedal bracket.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the accelerator pedal bolts.

    3. Tighten
    Tighten the bolts to 9 N·m (80 lb in).


    Object Number: 1704152 Size: SH
  3. Connect the APP sensor electrical connector (1).
  4. Connect a scan tool to the diagnostic port in order to test for proper throttle-opening and throttle-closing range.
  5. Operate the accelerator pedal and monitor the throttle angles. The accelerator pedal should operate freely, without binding, between a closed throttle, and a wide open throttle (WOT).
  6. Verify that the vehicle meets the following conditions:
    7. • The vehicle is not in a reduced engine power mode.
    • The ignition is ON.
    • The engine is OFF.
  7. Install the knee bolster. Refer to Knee Bolster Replacement.