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There are 2 Female conectors (just like on your vehicle) and a single Male connector that you use to plug into your vehicle
Custom ECM Tuning
Signal Name Type 2 F Type 2 M Type 1 M Ground A A A Battery B B B J1939 Type 2 High C C C J1939 Type 2 Low D D D J1939 Shield E E E J1939 Type 1 / J1708 High F F - J1939 Type 1 / J1708 Low G G - OEM Specified H H - OEM Specified J J -
The 9 contacts are wired as follows:
It has a very different pin assignment:
Painless ECM There are 2 Female conectors65104<br>65105<br>65106<br>65108<br>65120<br>65121<br>65140<br>65141 <br>65205<br>65206<br>65245<br>65246<br>65247<br>65248<br>65250<br>65251<br>65252<br>65253
