These harnesses kits include the main harness and any adapters needed for your application. They are made to work with a cable throttle body, 12200411 or 09354896 PCMs, and MR Part #997-9100-00 O2 Sensors.
2002-2007 Trailblazer, SSR, Envoy, Ascender, and 97-X Engine 4L80E Trans
Cable Throttle Body
PCM – 12200411 or 93544896
O2 Sensor – BRP Hot Rods Part #997-9100-00
Transmission Tune – 98-05 13-pin connector