| Pin Number |
Pin Name |
Description (may be empty) |
| 1 | Black | K line (-) (to ECU) |
| 2 | White | K line (+)(to ECU) |
| 3 | Remaining pin | Although any good earth will do |
4 - Battery Power (+12v)-Direct to battery positive terminal
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| Fiat Test pinout pinout |
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3-pin Fiat test connector |
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