C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
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Old Nov 23, 2017 | 12:47 AM
  #21  
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If your battery gets a little low then the Tech2 will start having problems.
The Tech2 itself can be a bit of a drain. If your key is on then you have day time running lights and accessories being powered as well.

It is better to have a battery charger connected and start with a full charge.

Try the self check with the Tech2 not connected to the car's OBD2 port using the AC adapter.
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Old Nov 23, 2017 | 01:11 PM
  #22  
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DCL fail. Would not recognize loopback adapter on self test. Sending back to China for replacement or refund. What a hassle
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Old Nov 23, 2017 | 02:35 PM
  #23  
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You can buy parts/ cables probably cheaper than the return shipping.
Or simply ask the seller to send you the part you need.
Ali express and eBay have parts.

Last edited by Rob 02; Nov 23, 2017 at 02:36 PM.
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Old Nov 23, 2017 | 11:35 PM
  #24  
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Originally Posted by SoAlVette
Just got my Tech 2 knock off. Everything seems to work just fine as far as setting up the tech 2, but when I try to connect it to my car, I get
this message:

no communications with vehicle
check diagnostic link connector
check ignition <off/on>

I have my key in the on position but not running, cable connection appears to be correct

I must be missing something, any suggestions?

Mike
As soon as you said "knock off" it made me remember a great article on buying them on ebay. Many of them are just bad from the get go.

Last edited by Ed Ramberger; Nov 23, 2017 at 11:38 PM.
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Old Nov 24, 2017 | 05:38 AM
  #25  
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They are all made in Hong Kong. Same factory!

If you think you can score one made in the united states then think again.

Last edited by Rob 02; Nov 24, 2017 at 05:41 AM.
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Old Nov 24, 2017 | 06:16 AM
  #26  
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I agree with Rob, I’d be looking for parts to repair it before sending it back. I got mine for $200 shipped and wouldn’t like to know how much it would cost to ship it back from the US but assume it would be at least half of what I paid. I’m in the Bahamas so I know it’s over the $200 price tag I paid for it for return shipping. You might just have a bad loop back cable.
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Old Nov 24, 2017 | 08:20 PM
  #27  
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^Wow Bahamas. Glad you survived all the hurricanes this year.
It was bad enough in FL.
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Old Nov 25, 2017 | 05:47 PM
  #28  
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Yea we had a few close calls but made it through pretty well this year. I have a place in FL too and got lucky with Irma, I really thought FL was going to be a disaster zone with that one.
I hope this coming year is better.
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