GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Avalanche - 4WD 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Trailer Brake Control Module Replacement

Removal Procedure
  1. Turn the ignition switch to the OFF position.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

    3. Object Number: 2154128 Size: SH
  3. Disconnect the trailer brake control module electrical connector.

    4. Note: It is not necessary to completely remove the bolts.

  4. Loosen, but do not remove, the trailer brake control module bolts (1).

    5. Object Number: 2154131 Size: SH
  5. Slide the trailer brake control module (1) rearward and remove the trailer brake control module.

Installation Procedure

    Object Number: 2154131 Size: SH
  1. If installing a new trailer brake control module, hand start the 3 trailer brake control module bolts.
  2. Position the trailer brake control module to the frame rail.
  3. Slide the trailer brake control module (1) forward on the frame rail.

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


    Object Number: 2154128 Size: SH
  4. Tighten the trailer brake control module bolts (1) to  9 N·m (80 lb in).
  5. Connect the trailer brake control module electrical connector.
  6. If installing a new trailer brake control module, program the module. Refer to Control Module References.