Sometimes, depending on engines and wiring harness variants some mandatory wires have been omitted from the wiring harness and require to be added so the TOYOCOM tool can be used at it's fullest. This can be accomplished with simple tools without removing the wiring harness from the car.
Getting contact pins, 2 ways to do it
- cut off a spare diagnosis box at the junkyard and reuse it's contact pins.
- use brand new contacts that you will crimp and solder to new wires.
IF YOU HAVE A GREY DIAGNOSIS BOX YOU CAN ONLY REUSE CONTACT PINS AS OF YET.
I will only describe how to work with new contact pins in this post, the theory on how to pull contact pins from a diagnosis box is described in the later steps.
You can buy suitable contact pins online from Digikey. A123029CT-ND on digikey
The tools and parts I used.
Soldering is used to compensate for the loose the crimp tool may leave.
Getting the new contact pin into the diagnosis box
Hold the diagnosis box so you can read 'DIAGNOSIS' (not upside down.)
Be careful so the contact pin 'wings' are facing up
You will hear this sound when the contact pin locks right.
Pulling out contact pins from the diagnosis box (applies to BLACK and GREY boxes)
Position the diagnosis box facing you and so the cover sits at your right