gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Body and Frame > < Diagram Information and Instructions|Page 7789
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Trailer Lamps: Testing and Inspection

The trailer lamps operate in the same manner as the vehicle lamps. The trailer lamps are grounded to the vehicle at G475 through the WHT (22) ground
wire.

Body and Frame > < Diagram Information and Instructions|Page 7789