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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 07-07-2011, 06:44 PM   #1 (permalink)
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OBD cable question

Hi guys,

can some one please explain the difference between the general OBD cable used for diagnostic and vgacom (or BMW special cable) ?
here is summery of my problem and why i am asking this question,

I have a genden ELM (genden.co.uk) and one of the e36 20 to 16 pin convertor but i can not connect to the ecu after trying numourous setting changes and ...
Basically my interface recognised the battery voltage and that is it.

However the same tool without the 20 pin convertor works on e46 without a problem which has the new 16 pin
any ideas as to why?

many thanks
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Old 09-23-2011, 09:52 PM   #2 (permalink)
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Hi guys,

can some one please explain the difference between the general OBD cable used for diagnostic and vgacom (or BMW special cable) ?
here is summery of my problem and why i am asking this question,

I have a genden ELM (genden.co.uk) and one of the e36 20 to 16 pin convertor but i can not connect to the ecu after trying numourous setting changes and ...
Basically my interface recognised the battery voltage and that is it.

However the same tool without the 20 pin convertor works on e46 without a problem which has the new 16 pin
any ideas as to why?

many thanks
to answer my own question, genden elm has a different chip. in order to communicate with bmw a special bmw cable should be bought . this cable should be able to communicate with all moduels apart from abs-tsc and kombi.

in order to communicate with above modules a ads interface and ads 16 to 20 ping adaptor is needed
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Old 09-23-2011, 10:33 PM   #3 (permalink)
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Thanks for posting the answer to you own question. It does help others that may encounter the same issue.
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Old 09-24-2011, 03:44 AM   #4 (permalink)
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Thanks for posting the answer to you own question. It does help others that may encounter the same issue.
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Old 09-24-2011, 08:37 AM   #5 (permalink)
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Disagree !
OBD I & OBD II may have different combinations of pcb chip but the results are the same !!!
Just the adaptor... That is ALL
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