Code Scanner Not Linking.
 

I purchased a code scanner(Autel maxiscan MS409 OBD2) so I can pull the codes from my 2003 Silverado. When I connect and turn on the key I get an error message saying that I have a linking error. The new scanner works on other vehicles without a problem. Also I already tried another scanner on my chevy, still no luck. My question is ...has anyone else had this linking error and what did you find to be the problem. Thanks in advance. :cool:

sounds like you blew the fuse for the interface....usually it it the same fuse that the lighter uses

Or power port uses.

LOL yeah thats what I meant......Im old school and call it a lighter still :D

Thanks crisbmo,you may be right. The power port has never worked.Now to find the right fuse. I believe that I checked them all in the past, is there something I'm missing?

should be in th fuse box and if im not mistaken its only a 5-10 amp fuse......but it should be labled. I would use a test light to check both sides of all the fuses and look under the hood in the power distribution box also

OK Thanks I'll keep looking. :confused:

If the fuse is good, then the cig lighters is gonna be the problem. The OBII port is powered by this in series.

Thanks roughneck, I'll check them.

Looks like the cig lighter above the ash tray is in rough shape. I'll start with that one. Won't be till the week end. Thanks again.

Cool deal. Let us know what you find.

OK, You guy's were right on! I disconnected the one cig lighter(power out put)that was bad and replaced the 15 amp fuse. Scanner linked first try and I pulled the code P0403 (exhaust recirculation control circut). Re-set the code and now, will wait to see if it comes back. Still have to replace the cig lighter to get the aux. power outlets to work. Thanks for your help guy's. I would not have been able to get it done otherwise. Much appreciated! :) BTW my truck 4.3 has 185k on it and I commute 100 miles a day with no complaints.

Alright man good deal! That code is for your EGR. If it comes back on then check the wires to the valve. Or the valve may be stuck closed or open.

Thanks, I really appreciate your help. I'm going to check out that EGR valve this w/e. as the light came back on as I was driving to work yesterday.

I called NAPA for a quote for the EGR valve,they told me that it was not available but they did have the gasket :confused:. Auto zone told me that the vehicle was not equipped with EGR. So... I called the Chevrolet dealer and got the same answer of vehicle w/4.3 not equipped with that part.:confused:
Any suggestions? P0430 catalyst system efficiency below threshold
bank 2. Thanks:)

Ok now earlier you put p0403. So now its p0430? That means an O2 sensor behind the cat is throwing a code for a possible bad catalytic converter on the passenger side.

Sorry man, my mistake.

Hey no sweat man! I just didn't wanna give you the wrong info.