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Strange OBD2 issue

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Old June 7th, 2020, 9:34 PM
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Default Strange OBD2 issue
Hi all,
I have a 2004 Tahoe. My OBD2 reader wont link. It has power and runs thru protocols but has a communication error. All fuses are good. When i take it to a shop, their reader works fine. I there something i am missing? im losing my mind trying to figure this out.

tyia,

JB
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Old June 7th, 2020, 11:41 PM
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if the shop's scan tool works fine the problem is with your scan tool. are you using a phone based scan tool?
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Old June 8th, 2020, 7:11 AM
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Originally Posted by tech2
if the shop's scan tool works fine the problem is with your scan tool. are you using a phone based scan tool?
I thought that also. So I got another. Still won't connect to truck it but works in my Mazda. So weird.

Thanks for the reply.

Jb
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Old June 8th, 2020, 9:17 AM
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what scan tools are you using
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Old June 8th, 2020, 9:20 AM
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Originally Posted by tech2
what scan tools are you using
Its is a Zurich 4.
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Old June 8th, 2020, 10:34 AM
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might not be compatible. try it on another 04 gmc/chevy pick up, Tahoe, suburban.
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Old June 8th, 2020, 11:24 AM
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Originally Posted by tech2
might not be compatible. try it on another 04 gmc/chevy pick up, Tahoe, suburban.
will do. Thank you.
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