Sierra Classic 2500 2WD V8-6.6L DSL Turbo (2007)
3. Match the vehicle harness label circuit functions to the trailer brake controller jumper harness functions.
Important
The color or wires to be joined together may not match.
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Dark Blue Wire: switched power from controller to trailer brakes
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Red with Black Stripe: fused vehicle power to electrical brake controller
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Light Blue with White Stripe: Brake switch input to power electric brake controller
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White: ground
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Orange: CHMSL (Center High Mounted Stop Lamp) - not required with most systems
