ODBscan, Has anyone tried this scan tool?
Thread Starter
Melting Slicks
Joined: May 2000
Posts: 2,974
Likes: 5
From: CenTex Texas
ODBscan, Has anyone tried this scan tool?
What did you like about it?
Was it easy to use/setup?
How long have you been using it?
Have you tried any other scan tool prior to using ODBscan? If so, which one? And how do they compare?
For those unfamilar with it look here:http://www.ghg.net/dharrison/obdscan.html
[Modified by 97C5ENVY, 3:38 PM 1/4/2002]
Was it easy to use/setup?
How long have you been using it?
Have you tried any other scan tool prior to using ODBscan? If so, which one? And how do they compare?
For those unfamilar with it look here:http://www.ghg.net/dharrison/obdscan.html
[Modified by 97C5ENVY, 3:38 PM 1/4/2002]
Thread Starter
Melting Slicks
Joined: May 2000
Posts: 2,974
Likes: 5
From: CenTex Texas
Re: ODBscan, Has anyone tried this scan tool? (C54U2NV)
Actually OBDscan is a scan tool similar to AutoTap. And i'm just trying to get some user feedback on the product.
If you liked my username then you'l love this:yesnod:..........
I like you username..............
Instructor
Joined: Jan 2002
Posts: 228
Likes: 0
From: Raleigh NC
Re: ODBscan, Has anyone tried this scan tool? (97C5ENVY)
97C5envy-
try some of these other links...they all work great just depends on what your looking for. You have odbII so you need something that is ODBII compliant due to voltage in the data streams if you make the cable yourself and use homegrown software.
http://www.obd-2.com/
Other gizmos / software
AutoXray XP-240 at http://www.autoxray.com/
Scanmaster from http://www.modernmusclecar.com/
Diacom can be found at http://www.rinda.com/
Ease Diagnostics can be found at http://www.easesim.com/
AutoTap can be found at http://www.obdii.com/
GM uses variable pulse width (VPM) for ODBII. It has two modes. "talk" and "write". Most scanners use the 10.4 kbps to talk..period. The 41.6kbps to write or flash the pcm whcih almost any scanner will not do. This is only if you are creating your own rs232 with translator microprocessor and a laptop to do the reading, writing, etc.. if you buy a scanner tool then you will have no worries, it will come with cable and instructions. sorry for getting somewhat technical but safe rather than sorry.
the links above should help with scanner tools.
:)
try some of these other links...they all work great just depends on what your looking for. You have odbII so you need something that is ODBII compliant due to voltage in the data streams if you make the cable yourself and use homegrown software.
http://www.obd-2.com/
Other gizmos / software
AutoXray XP-240 at http://www.autoxray.com/
Scanmaster from http://www.modernmusclecar.com/
Diacom can be found at http://www.rinda.com/
Ease Diagnostics can be found at http://www.easesim.com/
AutoTap can be found at http://www.obdii.com/
GM uses variable pulse width (VPM) for ODBII. It has two modes. "talk" and "write". Most scanners use the 10.4 kbps to talk..period. The 41.6kbps to write or flash the pcm whcih almost any scanner will not do. This is only if you are creating your own rs232 with translator microprocessor and a laptop to do the reading, writing, etc.. if you buy a scanner tool then you will have no worries, it will come with cable and instructions. sorry for getting somewhat technical but safe rather than sorry.
the links above should help with scanner tools.
:)
Thread Starter
Melting Slicks
Joined: May 2000
Posts: 2,974
Likes: 5
From: CenTex Texas
Re: ODBscan, Has anyone tried this scan tool? (Fast Frwrd)
Cool! Thanks for the info. I take it you read my other thread in regards to making a "homegrown" scan tool.
I have AutoTap already, i'm just curious as to how hard it would be to create my own, and possible design it to do both reads and writes, plus make it more user friendly (for me).:) Would you happen to know where the VPM chip is located on an AutoTap unit (molded into the OBDII interface connector or in the converter box located between the two cables)? I'm trying to determine if the OBDII -to-RS232 pinout i found on the internet is BS.
I have AutoTap already, i'm just curious as to how hard it would be to create my own, and possible design it to do both reads and writes, plus make it more user friendly (for me).:) Would you happen to know where the VPM chip is located on an AutoTap unit (molded into the OBDII interface connector or in the converter box located between the two cables)? I'm trying to determine if the OBDII -to-RS232 pinout i found on the internet is BS.
Instructor
Joined: Jan 2002
Posts: 228
Likes: 0
From: Raleigh NC
Re: ODBscan, Has anyone tried this scan tool? (97C5ENVY)
My guess would be on the ocnverter box. the interface connector will have the transistor built into the design. Just a guess however, since I have never gotten my hands on an autotap unit. I never saw your other post, just done a lot of research since trading my '95 C4 for an '01 C5 and having lost all the ability to do tweaks myself. Send me the schematic you found on the web for the odbII to rs232 and I can check it out and respond. I am certainly no authority but will be happy to see if it makes any sense. good luck and keep me/forum posted. This sounds like a worthwhile project. I might have to breakdown and buy the powerloader as I don't have as much time as I used to work on this stuff, not to mention being "down" due to a dead pcm.
:cheers:
can you send me your thread url for the homegrown scanner tool, I would like to see if I could expand on it as well. ya' never know what could happen. probably something bad!!
[Modified by Fast Frwrd, 6:44 AM 1/5/2002]
:cheers:
can you send me your thread url for the homegrown scanner tool, I would like to see if I could expand on it as well. ya' never know what could happen. probably something bad!!
[Modified by Fast Frwrd, 6:44 AM 1/5/2002]
Le Mans Master
Joined: Aug 2000
Posts: 5,294
Likes: 2
From: Suffolk, Long Island NY
Re: ODBscan, Has anyone tried this scan tool? (97C5ENVY)
I've seen a few Palm based scan tools and I can't find any that log data like my autotap? Has anyone seen such a device?
Thanks!
Thanks!
Melting Slicks
Joined: Sep 2000
Posts: 2,756
Likes: 5
From: Satellite Beach, FL, USA
Re: ODBscan, Has anyone tried this scan tool? (Fast Frwrd)
To talk to an OBDII compliant vehicle requires a custom IC based modem. The modem attaches to your computer RS232 port and the car J1850 bus port. There is a custom Motorola microprocessor based modem inside all GM modules that talk on the DLC buss, even the radio has one. There are at least three different standards that most car companies use and there are differences between companies who use the same standard. Most GM verhicles 1996 and newer use a modulation method called VPW. It has a signalling rate of 10.4kb/s. The rate does not change for reading or writing. Ford uses a different modulation method called PWM and uses a signalling rate of 41.6 kb/s.
GM is dumping this bus in 2003. It is too slow and has many limitations.
GM is dumping this bus in 2003. It is too slow and has many limitations.
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