Sierra 2500 Denali 2WD V8-6.0L (2011)
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J-38125-12A - tool into the corresponding terminal release cavity. The release cavities are the 2 center rows of cavities on one half of
the connector.
