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Removal Procedure

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

Fig 1: Trailer Brake Control Module & Mounting Bolts

GM2154128

Courtesy of GENERAL MOTORS CORP.

Disconnect the trailer brake control module electrical connector.

NOTE: It is not necessary to completely remove the bolts.

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

Fig 2: Trailer Brake Control Module

GM2154131

Courtesy of GENERAL MOTORS CORP.

Slide the trailer brake control module (1) rearward and remove the trailer brake control module.