gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Body and Frame > < Diagram Information and Instructions|Page 8061
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Trailer Connector: Description and Operation

The trailer lamps operate in the same manner as the vehicle lamps. The trailer lamps are grounded to the vehicle at G452 or G475 through the ground
wire.

Body and Frame > < Diagram Information and Instructions|Page 8061