crAzy

You can in the C5 or do you have to have a scanner tool (OBD2)?

Vette_DD

Not like the C5. You must have a scanner tool.

crAzy

Ahh ok. Will the scanner tool show a history of past codes, again like the C5?

Vette_DD

I'll have to let someone else answer that - I don't know - have never used one.

Mike's LS3

Yes, some units will, as long as the history was not erased.

fhturner

Why on EARTH would they remove this handy capability in the C6? It has been invaluable on my C5s...I'm looking for a C6 now and am stupefied to find out you can't do it anymore. You'd think I'd already know this, but I always just assumed the same behavior was available on the C6 just like the C5.

Vette_DD

Maybe too many owners that were pulling the codes were screwing up more than they were fixing.

Maybe there are too many more codes on the C6 than there were on the C5.

b murph

Not to meny people knew about the self diagnostics on the C5 and the ability to clear codes. I wish they carried it over to the C6. Nice option.

Greg00Coupe

Simple answer. It was cutting down on taking it in for service. When you can self diagnosis come on here for an answer who needs a dealer?

The next trend I hear is dealer monopolizing parts........ it's already started on Cadillac.

BEZ06

There are a lot of differences between the C5 and C6!!

When you swap to your track wheels, you can't use a magnet to trigger the sensors when programming them into your TPMS in the car - the C6 sensors need to be triggered with the signal transmitted by a TPMS tool.

And if you don't run with sensors in your track wheels you may experience some problematic issues with AH.

Keep researching and you'll find lots of other little things are quite different between the two cars.

Bob