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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting >> Diagnostic Information and Procedures >> Stop Lamps Malfunction >> Circuit/System Description

Circuit/System Description

When the driver presses the brake pedal, the switch contacts close and battery positive voltage is supplied to the BCM. The BCM then supplies voltage to the stop lamp and stop/turn lamp control circuits. The BCM also supplies a control voltage illuminating the CHMSL.

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