OBD II port wont connect


Asked by Sep 04, 2013 at 05:31 PM about the 2006 Chevrolet Cobalt LS Sedan FWD

Question type: Maintenance & Repair

So I attempted to plug in a code reader and my OBD II port would not power up the device
to read the codes...any idea what would cause it not to function? I have had codes
checked before and it worked just fine. nothing has changed on the car since

5 Answers


Sound like your code reader has died. If the car was able to be read by your code reader and nothing has changed, and the car still functions good as before, then the reader is bad.


the reader works on another vehicle, gm and everything


Did you have it plugged in all the way ? Was there any codes that needed to be cleared out of the reader before use ? Sorry but you got me stumped.


My 04 has the same problem, did u ever get this resolved?

1 of 1 people found this helpful.

I'm having trouble with the same issue??? I did install a new head unit but I used an interconnect and everything else is working. Im having brake issues where the peddle goes to the floor and no warning lights!

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