Sierra 1500 4WD V8-6.0L VIN U (2006)
7. If equipped with RPO HP2, install the HCM.
8. If equipped with RPO NYS, install the harness ground clip to the PCM cover.
9. Connect the negative battery cable.
10. If a NEW PCM was installed, program the PCM. See: Testing and Inspection/Programming and Relearning
