Car computer to RS232 serial DIY solution???

C

Cody1233

New Member
Okay, so I got an older grand prix (2002) and have been searching for a way to access the OBD computer so I can view error codes and stuff. I looked everywhere and I just figured out what interface type it has. I found cables, but they're like $60!! I can't spend that much! I have heard of people making cables to interface the OBD computer from a laptop serial port. Does anyone have information on how to do this or a place to find a cheap (less than $10) cable?

Thanks in advance!
 
Will these work with SAE J1850 VPW? Also, in my car the pins are on 2, 4, 5, 9, 14, and 16...Why do none of these have the same pins?
 
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