The appearance of the connector and the DLC.
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Unused contact pads for the car manufacturers use for their purposes.
To determine which diagnostic Protocol is used on a specific car, with sufficient share of probability it is possible according to the presence/absence of contacts in the connector OBD-II:
|
Protocol |
Pin 2 |
Pin 6 |
Pin 7 |
Pin 10 |
Pin 14 |
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ISO 9141/14230 |
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+ |
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J1850 PWM |
+ |
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+ |
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J1850 VPW |
+ |
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ISO 15765 CAN |
|
+ |
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|
+ |
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Region |
Mandatory support OBD |
|
USA |
Vehicles production since 1996 |
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Canada |
Models in production since 1998 |
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Europe |
Vehicles production in 2000/2001 |
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Europe (diesel) |
Vehicles production since 2004 |
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Australia |
Vehicles production in 2006. |
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The rest of the country |
Not regulated |