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  1. #1

    Default Trailer brake wiring for 98 gmc k2500

    I have 7 pin conn at the rear and have found the white wire for the brakes, but ihave not found it at the front. Where is it?


  2. #2


    Try looking under the dash, near the steering column. GM placed it there on some trucks, perhaps yours as well.

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

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