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Home › Magazines › 2005 › July › OBD-2 Analyser

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OBD-2 Analyser

Check out your car’s condition

Published in issue 345, July 2005

OBD-2 Analyser
Modern cars are jam-packed with electronics. That’s great until something goes wrong. Then you’re at the mercy of the dealer. At least until now, because in many cases you can use the EOBD adapter described here to track down the problem yourself.

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In certain cases the reset pulse is too short, causing the red LED to light only and the green and yellow LED to remain off all the time. Contrary to what is mentioned in the article text, it is better to fit IC7 and C7. A solder spot is available for the negative terminal of the electrolytic capacitor, while the positive terminal is connected to the centre pin of IC7.

Click below to download a PDF copy of this article from Elektor magazine.

 

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PDF Article (U0507018.pdf)
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PCB layout (050092-PCB.pdf)
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Order from Elektor 
PCB, bare
050092-1 (USD 17.00)
T89C51CC02UA, Programmed
050092-41 (USD 44.60)
 

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050092-11.zip

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Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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