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I started with the 9 pin connector. Plug both halves together and mark the pins so you don't get them messed up. Once the individual pins are pushed into the connector body, they are virtually impossible to remove without destroying them. I got distracted when doing pins 6 and 7 and got the two exchanged (DOH!). Rather than screwing up the pins, I cut the wires and then spliced them back together (it happens).
I used the clothes pin again since I still only had two hands. After stripping a 1/4" of insulation from the wire, I crimped the pin onto the wire using a pair of needle nose pliers. I then soldered the pin to the wire and finished it by crimping the tabs over the insulation.
The pin, after being soldered to the wire, was then inserted into the plug. Did I mention you want to be sure you get it in the proper hole?
You can see the 9 pin connector now in the harness. The three wires not yet connected will be attached to the 6 pin connector. The harness is starting to take shape and it is beginning to look like the real thing. As I mentioned earlier, I will wrap it with electrical tape and put it in a wire loom before permanently installing it on the firewall with tie-wraps.
I was asked how long my harness was. From the TCU plug to the two tranny plugs (black and gray), it is 6' long. The 6 conductor plug is 4' from the TCU end of the harness. This length provides adequate harness length to mount the TCU under the dash (driver's side kick plate area). When you make yours, I suggest you break out the tape measure and check to see what your requirements will be, then cut your wires to the appropriate length.
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