GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Yukon XL - 4WD 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Accelerator Pedal Position Sensor Replacement

Removal Procedure

    Object Number: 43534 Size: SH

    Notice: 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 left instrument panel (IP) lower closeout insulator panel.
  2. Disconnect the accelerator pedal position (APP) sensor harness connector.

    3. Object Number: 43535 Size: SH
  3. Remove the accelerator pedal mounting bolts.
  4. Remove the APP assembly.

Installation Procedure

    Object Number: 43535 Size: SH
  1. Install the APP assembly to the steering column support bracket.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Important: Always use a torque wrench in order to obtain the proper torque.

  2. Install the accelerator pedal mounting bolts.

    3. Tighten
    Tighten the accelerator pedal mounting bolts to 20 N·m (15 lb ft).


    Object Number: 43534 Size: SH
  3. Connect the APP sensor harness connector.
  4. Verify that the vehicle meets the following conditions:
    5. • The vehicle is not in a Reduced Engine Power mode.
    • The ignition is ON.
    • The engine is OFF.
  5. Connect a scan tool in order to test for a proper throttle-opening and throttle-closing range.
  6. 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).
  7. Inspect the carpet fit under the accelerator pedal.
  8. Install the left IP lower closeout insulator panel.