K 3500 Truck 4WD V8-6.6L DSL Turbo VIN 1 (2001)
The 1999 though early 2003 wiring harness jumper that plugs into the relay block will have a reddish/brown 6-way connector and a tag with the last four
digits of the wiring harness part number. Second design 2003-05 may have a white plastic connector with part number 5418 as well.
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The 1999 jumper is/was P/N 12171982 with a pink/purple tag identifier of 1982. This number has been superseded to 15366255, with a pink/purple
tag identifier of 6255.
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The 2000 jumper harness is P/N 15366255. The pink/purple tag identifier is 6255.
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The 2001-2002 jumper is P/N 15086884. The orange tag identifier is 6884.
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The 2003-05 jumper is P/N 15085418. The orange tag identifier is 5418.
When transferring the brake controller with the wiring jumper attached from a 2001-2002 vehicle to a 2003-05 vehicle, a change to the jumper harness
connector must be performed.
