Express 3500 V8-6.6L DSL Turbo (2008)
Locate connector X1 (1) (black in color 62 cavities) at the BBEC.
Remove the bottom plastic protector cover (1) from the BBEC connector X1 (black in color 62 cavities) (1).
Remove the top terminal position assurance lock tab retainer (1) from the BBEC connector X1.
Add circuit 1624 (trailer backup lamp supply voltage) (light green wire) to the BBEC.
Obtain a light green 16 (1.0 m) gauge wire and cut the wire to 201 cm (6-1/2 ft) in length.
Add terminal 8100-4444 from the Sumitomo tray 22 to one end of the light green wire. Refer to Repairing Connector Terminals in SI.
