You can buy a J1962 connector fairly cheaply, you just need to connect the SDL pin from the ECU to pin 9, pin 4/5 to ground and pin 16 to the black/white switched 12V from the ECU or main relay.
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1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine 2000 Suzuki Vitara 1.6 8V, many mods 2004 Suzuki Ignis 1.5VVT 4Grip 2006 Suzuki Jimny 1.3VVT JLX+ and many more.
The ECU is the same as the Vitara ECU but with different code, a previous poster retro fitted a connector. I don't have any interfaces available at present.
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1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine 2000 Suzuki Vitara 1.6 8V, many mods 2004 Suzuki Ignis 1.5VVT 4Grip 2006 Suzuki Jimny 1.3VVT JLX+ and many more.