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wiki:no_communications_with_vehicle_may_be_a_bad_vci

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wiki:no_communications_with_vehicle_may_be_a_bad_vci [2016/11/14 13:30]
berry
wiki:no_communications_with_vehicle_may_be_a_bad_vci [2016/11/14 22:39] (current)
berry
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-**All VCI Modules are not created equalBe careful when ordering**+Some Tech2 devices may fail by randomly ​not connecting to the vehicle. The Tech2 would display ''​No communications with vehicle Check Diagnostic Link Connector.''​ This could be a sign of a malfunctioning VCI module.
  
-My Tech2 worked great for a few months, then it would randomly ​not connect to the vehicle. I'd get a message saying "No communications with vehicle Check Diagnostic Link Connector."​ This happened across multiple vehicles. Finally, it failed and wouldn'​t connect anymore at all.+It appears that not all VCI modules are manufactured on the same quality level.
  
 {{:​wiki:​vcifail1.jpg?​direct&​200|}} {{:​wiki:​vcifail1.jpg?​direct&​200|}}
  
-I ran self test and found the VCI was failing.+This Tech2 has faulty ​VCI module.
  
 {{:​wiki:​vcifail2.jpg?​direct&​200|}} {{:​wiki:​vcifail2.jpg?​direct&​200|}}
  
-After searching the internet for bit, I found some really great threads written by folks with the same issue I had, saying there were two different VCI modules available for sale.  One is known for having ​similar ​issues that I was experiencing. The other seems to be built much better, with far better solder quality, slightly different markings on the board, and some different components.+While running a self test a similar ​result may appear.
  
-I set out to buy a new VCI and wanted the "​good"​ one.  I believed this "​good"​ one has the "​quality Check" "QC" number stamped ​on the caseso I was looking for one with that marking.+It appears that two different ​VCI modules are manufactured ​and sold. 
 +  - One is known for having similar issues that was experiencing. 
 +    - No QC stamp. 
 +  - The other seems to be built much better, with far better solder quality, slightly different markings ​on the boardand some different components. 
 +    - QC stamp visible
  
-Below you will see pictures of the two different modules, side-by-side, and (hopefully) what to look for if you need to order a replacement+Below the two different modules, side-by-side. 
- +  ​- ​The //​good// ​module is depicted as the left module.
-The GOOD module is the one on the Left in all pics:+
  
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-Note the good VCI seems to have the QCI number stamped on the top of the case.+Note the //good// VCI has the QCI number stamped on the top of the case.
  
 {{:​wiki:​vcidiff3.jpg?​direct&​200|}} {{:​wiki:​vcidiff3.jpg?​direct&​200|}}
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-Note these components are also give-aways to see the better board.+Note these components are also give-a-ways ​to see the better ​manufactured ​board.
  
 Just a warning, be careful when you purchase these. In my experience, even though the seller offered a 3 year warranty, once the item was paid for, and the transaction completed, he did not respond to messages through email or even through the purchasing site.  I had to purchase the new VCI if I wanted my Tech2 to work, so I went with another vendor, and looked for one that had the markings I showed above. I can't guarantee that if you order the "​qc"​ model VCI that you will get the higher quality one, only that this worked for me.  Just a warning, be careful when you purchase these. In my experience, even though the seller offered a 3 year warranty, once the item was paid for, and the transaction completed, he did not respond to messages through email or even through the purchasing site.  I had to purchase the new VCI if I wanted my Tech2 to work, so I went with another vendor, and looked for one that had the markings I showed above. I can't guarantee that if you order the "​qc"​ model VCI that you will get the higher quality one, only that this worked for me. 
  
-I want to thank the saabcentral ​forum for being the source ​that lead me to this info.+Thank the [[http://​www.saabcentral.com/| SaabCentral.com]] ​for being the source ​information.
  
-From another user: +Aside from this the ODB connector may also be the root cause of communication malfunctioning.
-I would like to add that this error on mine was caused by the cheap, nasty OBD plug. Many errors are caused by poor quality cabling or badly made plugs. Others can be a bad Candi unit. As the plugs are cheap, they would be a good starting point.+
  
wiki/no_communications_with_vehicle_may_be_a_bad_vci.txt · Last modified: 2016/11/14 22:39 by berry