Finding your Diagnostic socket

OBD2 uses a standard 16 pin diagnostic socket across all makes and models. Technically referred to as J1962F. Every compatible vehicle should have one. You will find it within reach of the driver’s area. To locate yours first check your car manual. But don’t be surprised if the manual makes no reference to it, many manufacturers don’t seem to want to tell you about it (hmmm…I wonder why?)

Diagnostic socket on an Astra G (found under plastic cover) - Hmm...needs a clean out too!

The diagnostic socket is rarely obvious. Sometimes it will be concealed with a blanking plate or much lower down the dash so can only be seen if you place your head in the footwell area. Start by sitting on the passenger seat and leaning down so you look around just above the foot pedals.  Best to use a torch. Then look for any panels on the lower part of the dash area on the driver’s side. If you still can’t trace it, it’s likely to be somewhere in the centre dash area extending back to the handbrake area, behind a blanking plate or ashtray.

If all else fails, ask your fault code reader supplier for advice.

Please do not assume that your vehicle is OBD2 compatible because it has a 16 pin diagnostic socket. See here for more information on OBD2 compatibility.

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