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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 345 (Trailer Brake Control System) >> Diagnostic Information and Procedures >> DTC C0880, C0890, C1115, C1116, C1117, or C1118 (Gasoline Without LY6) >> Circuit/System Description

Circuit/System Description

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The fuel pump/trailer brake control module system has a control panel with the trailer gain and manual apply switches. The switches are located on the instrument panel to the left of the steering column. The control panel and switches allows you to adjust the amount of output, referred to as trailer gain, available to the electric trailer brakes and allows you to manually apply the trailer brakes. The Trailer Brake Control Panel, and switches are used along with the Trailer Brake Display Page on the Driver Information Center to adjust and display power output to the trailer brakes.

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