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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 C0870, C1112, C1113, C1114, or C1119 (Gasoline With LY6, or Diesel) >> Circuit/System Verification

Circuit/System Verification

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Ignition ON, observe the scan tool trailer brake controls user gain parameter. The reading should be between 0-100 percent, and change with operating the gain switch up or gain switch down.

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