Build your own OBD2 scanner

pmh013 · Post by **pmh013** » Sat Jun 26, 2004 11:22 am

My fiance would like to build/assemble an OBD2 code reader for the Vibe. He'd like to know what kind of connector is needed, and what the pin-out is.If anybody knows, could you please pass the info along? I'll let you know how the final product works.

cdFxer · Post by **cdFxer** » Sat Jun 26, 2004 5:11 pm

I started looking into building one myself, but with the cost of the connector + yet MORE drain on my time, I purchased a reader.http://scantool.net/http://www.digimoto.com/IIRC, these two links took me just about anywhere I needed to find info about the protocol and hardware.

Kazig · Post by **Kazig** » Sat Jun 26, 2004 11:52 pm

Here is another low cost alternative for OBD monitoring, and resetting CELs http://www.obddiagnostics.com And as a note the Vibe uses the ISO 9141 protocol, not VPW like the other Pontiacs.

engine1 · Post by **engine1** » Sun Jun 27, 2004 1:52 am

I honestly cant think of a worse tool in the hands of an untrained proffesional mechanic. Lol, I own an OTC Genisys scan tool it cost me almost 3k.

ragingfish · Post by **ragingfish** » Sun Jun 27, 2004 3:29 am

I was hoping the service manual might shed some light on this, but it doesn't. The best info I can give you is:Pin 1-3: Not usedPin 4: WHT/BLK - GroundPin 5: BRN - GroundPin 6: Not usedPin 7: BLU/RED - Serial DataPin 8-10: Not usedPin 11: BLK/YEL - Serial DataPin 12: GRY - Serial DataPin 13: PNK/BLK - Serial DataPin 14: Not usedPin 15: PNK - Serial DataPin 16: RED - Battery Positive Voltage

Kazig · Post by **Kazig** » Sun Jun 27, 2004 8:58 am

http://www.obddiagnostics.com/circNotes.txt Has a better breakdown on which protocol uses which serial connection.

pmh013 · Post by **pmh013** » Sun Jun 27, 2004 9:34 am

Quote, originally posted by engine1 Â» I honestly cant think of a worse tool in the hands of an untrained proffesional mechanic. Lol, I own an OTC Genisys scan tool it cost me almost 3k. I just want to be able to save myself the $106 "diagnostic" fee.That, and my fiance is an electrical engineer, and finds this stuff fun. Also the kind of guy that labels all the wires on the AV system.Thanks for the info, folks. None of it means anything to me, but I'm sure it will to him!

pmh013 · Post by **pmh013** » Thu Jul 22, 2004 10:11 am

Does anyone have any experience with this scanner? It's on sale for $175 right now (regular $250). http://www.iequus.com/item.asp?cid=10&pid=3100

ToolGuy · Post by **ToolGuy** » Tue Aug 03, 2004 1:01 am

My company makes and sells the OTC Genisys! As well as the GM Tech 2, Chrysler DRB II and StarSCAN and other OE's. Anyway, building your own scan tool may be very hard to do. Besides the OBD J-1962 connector, hell I could give you a cable to do that from a DRB III, you may have to re-pin it though, what will you do for programming? Communication speeds? Software? Flashing control modules? Updating the tool for the latest software? If you are talking just a plain code reader that flashes the light for a number of times, maybe then you could build one, I guess... I have a very old OBD hand held tool that flashed the CEL for that but a simple jumper between pins like a paper clip could do the same thing.OBD II monitors more now and flashing the light probably would not work. Good luck, not to sound like a downer but it may be hard. Vehciels now are moving to the next communiction and speed which is CAN, Controller Area Network and my account DaimlerChrysler had to develope a whole new scan tool since the ten year old DRB III could not handle it.

Build your own OBD2 scanner

Build your own OBD2 scanner

Re: Build your own OBD2 scanner (pmh013)

Re: Build your own OBD2 scanner (Kazig)

Re: (ragingfish)

Re: Build your own OBD2 scanner (engine1)

Re: Build your own OBD2 scanner (pmh013)

Re: Build your own OBD2 scanner (pmh013)