GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 Brakes 🢒 Air Brakes 🢒 Trailer Stop Lamp Switch Replacement

Removal Procedure

    Object Number: 1486644 Size: SH
  1. Apply the parking brake.
  2. Block the wheels.
  3. Drain all of the air reservoirs. Refer to Air Brake Reservoir Draining.
  4. Disconnect the wiring harness connector.
  5. Remove the trailer air brake stop lamp switch.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1486644 Size: SH
  1. Install the trailer air brake stop lamp switch.

    2. Tighten
    Tighten the trailer air brake stop lamp switch to 7 N·m (62 lb in).

  2. Connect the wiring harness connector.
  3. Start the engine and build up the system air pressure.
  4. Test the brakes for proper operation.
  5. Remove the wheel blocks.