Wiring on an OBD2 Plug to your Kia FE3

Below is a basic guide to wiring up a OBD2 plug to replace your 20 pin Kia Diagnostic Port. More diagrams can be found at Sportage Wiring Diagrams.

Kia's diagnostic port is a 20 pin to suit their tools, it can easily be adapted to suit OBD2 on some ecu's as it already has most of the wires. Either you can plug in a K20 to OBD2 adapter or hardwire an OBD2 in its place. Its wiring diagram for the K20 is below;

• Pin 20(T) - to ecu 31
• Pin 19(Q) - to ecu pin 13 (Auto Only)
• Pin 13(C) - Ground
• Pin 12(S) - Ground
• Pin 11(P) - to ecu pin 21
• Pin 9(K) - to ecu pin 55
• Pin 5(B) - From fuel pump after relay (switched on with fuel pump)
• Pin 4(R) - Ground
• Pin 3(O) - from ecu pin 1
• Pin 1(A) - 12v switched(by relay) from fuel pump 10A Fuse

• Pin 14(F) - To ABS Diag Unit Pin 3 & OBD Pin 13
• Pin 13(M) - Ground
• Pin 12(L) - Ground
• Pin 9(I) - to ecu Pin 83
• Pin 5(B) - 12v witched(by key) On & Start 10A fuse
• Pin 4(R) - Ground
• Pin 3(C) - from ecu pin 52
• Pin 1(A) - 12v switched(by relay) from fuel pump 10A Fuse

OBDII or OBD2 has 16 pins, Not all are used as they accommodate different types of communication on different pins. See general diagrams below;

To wire in the missing OBD2 port to your 88 pin ecu you will need to splice wires to a OBD2 plug to the following places;

• Pin 16 - Constant 12v 30a fused
• Pin 15 - ECU Pin 83
• Pin 13 - Pin 3 on ABS Diag Unit (not needed)
• Pin 12 - ECU pin 60 on 88 pin ecu
• Pin 5 - Earth
• Pin 4 - Earth

This is currently untested, Please provide us feedback!

• Pin 16 - Constant 12v 30a fused
• Pin 15 - ECU pin 55
• Pin 13 - Pin 3 on ABS Diag Unit (not needed)
• Pin 12 - Pin 6 of your K20 (not sure if needed)
• Pin 5 - Earth
• Pin 4 - Earth