Duramax swap stand alone rewire harness service lb7 lbz lly lmm

Description

this listing is for a 3 wire hook up stand alone wiring harness rework must ship harness first . all the non needed plugs will be taken out before shipped and only 3 wires will need to be hooked up and you will be up and running.Do not let wiring scare you away from a swap. all harnesses are tested before shipped to save u a headache once your swap is done. free customer support any questions call or text 9107703127
We build the harness to fit your needs and your build lead time is 2 weeks on a d Maxx harness
Setup for Allison TCM, 4L80E, 4L85E, TH400, Powerglide, or Manual Transmission.
Add Park Neutral Position relay LB7 and LLY only Identify Back Up Lamp wires on PNP switch label at pcm
Identify Cruise Control wires at PCM . LB7, LLY and LBZ
Remove all Air Conditioning control related wires.
Remove Coolant Level indicator control circuit.
Label Wait to Start, TCC and MIL lamp wires at PCM.
Label Tach and Speedometer Vss wire connections at the PCM for LB7, LLY & LBZ not LMM
Add OBD2 Diagnostic Connector installed.