What is a Data Link Connector? Also called the DLC:

What is a Data Link Connector?   Also called the DLC:

This is a part on your car that is usually located under the driver’s side dash.  Under the steering column there will be a box shaped like a rhombus (a rectangular shape that is wider at either the top or bottom).  This is the DLC or data link connector.  Sometimes it is in the car upside down.  The top part should be wider than the bottom.  The terminals (or slots) should read top left to bottom right, so terminal 1 would be on the top left.   This part is sometimes used by auto parts stores and mechanics to determine why your check engine light is on, but it can also be used to put some cars into programming mode as to program a keyless entry remote (clicker, key fob, or transmitter).  When some instructions ask you to jump terminals 4 and 8 (or whichever numbers the directions specify) they mean to put a wire into both terminals at the same time.  The easiest way to do this is to make a U shape out of a paperclip and physically stick both one end into slot 4 and the other end into slot 8.  Don’t worry, you will not get shocked.  There is very little “juice” flowing through this “circuit”.  It is about the same as touching an AAA battery.  If you have more questions about this subject, please feel free to contact www.carandtruckremotes.com at 866-690-4308.

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