2001 E46 316i SE - Petrol OBD round 20 pin connector

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  1. 2001 E46 316i SE - Petrol OBD round 20 pin connector 
    #1
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    Hi everyone

    Trying to clarify something but have just purchased a service light reset tool which isnt working and the company I got it from thinks I may need to use the 20 pin OBD port but after looking about the engine bay I cant seem to locate it.

    Can anyone tell me where it is located in case it has been hidden out of the way.

    It sounds like some of the cars have both the 16 pin and 20 pin for this age of car and if this is the case then I need the 20 pin tool.

    Any pointers very much appreciated.

    Thanks in advance.
     
     

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    Otherwise try this.

     
     

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    If you have the round socket you just need to GND one of the pins on the socket for more than 5 and less than 10 seconds (IGN on). If you only have the 16 pin you can use the video guide. I think 09/1999 was when the round socket was deleted.
     
     

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    Thanks guys will give this a try in the morning
     
     

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    I wouldn't just ground the pins mate! I can leave the K line hanging and you will then not be able to run diagnostics etc without connecting it to I believe GT1?!?!

    You can get a tool off E-bay for next to nothing.
    If it aint broke, don't fix it!!!
     
     

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    Quote Originally Posted by joylove View Post
    If you have the round socket you just need to GND one of the pins on the socket for more than 5 and less than 10 seconds (IGN on). If you only have the 16 pin you can use the video guide. I think 09/1999 was when the round socket was deleted.
    See wattty's peake tool thread for a very good reason not to ground one of the pins.Another is many an ECU has been fried with this method-much better to pay less than a tenner for a proper reset tool
     
     

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    Pins 7 and 19 are the pins to connect together. It's called SI. It takes my E36 7 seconds to reset the SI light, and 12 seconds to reset the fluids change light. You must cycle the ignition to see the changes. With the E46 I'd try the cluster reset first.
    http://pinoutsguide.com/CarElectroni...g_pinout.shtml

    Quote Originally Posted by StK View Post
    See wattty's peake tool thread for a very good reason not to ground one of the pins.Another is many an ECU has been fried with this method-much better to pay less than a tenner for a proper reset tool
    I just read it, contains not much useful info, since the person who did the shorting did not post. Sure you could probably damage the bus if you short the wrong pin, but then you could also damage the engine if you put the wrong fuel in the tank. The connector is marked with the pin numbers and the diagnostic bus is not involved in the SI reset. You just need to be careful to chose the right pin.
     
     

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    Quote Originally Posted by joylove View Post
    Pins 7 and 19 are the pins to connect together. It's called SI. It takes my E36 7 seconds to reset the SI light, and 12 seconds to reset the fluids change light. You must cycle the ignition to see the changes. With the E46 I'd try the cluster reset first.
    http://pinoutsguide.com/CarElectroni...g_pinout.shtml
    See my post above-we do not recommend the shorting of the pins method...If a person chooses to do so they do it entirely at their own risk...we will not be held responsible when it goes wrong.....
     
     

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    Quote Originally Posted by StK View Post
    See my post above-we do not recommend the shorting of the pins method...If a person chooses to do so they do it entirely at their own risk...we will not be held responsible when it goes wrong.....
    Yep, saw it, looks like that Previous Owner shorted 20 and 7 together because he read the connector marking wrongly. We can never know for sure of course. To avoid risk, take a GND from somewhere else.
     
     

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