'98 S70 Check Engine Light Mystery

Post by **firekiller75** » 10 Dec 2009, 18:13

So I went to both Autozone and Advanced Auto today, and they were unable to read my CEL off my OBD-II connector. Seems very bizarre to me, which is why I went to a 2nd place. Anyone have any suggestions? I guess I could pull the center console to check the wiring, but other than that, I'm at a loss!

Post by **tom39** » 10 Dec 2009, 19:42

I'm sure its a shot in the dark but is the light thats on a Service Engine or Check Engine?

Post by **firekiller75** » 10 Dec 2009, 20:24

Wish it was so simple!

The auto parts stores were unable to get any signal at all from the OBD-II connector.

FCPEURO · Post by **FCPEURO** » 11 Dec 2009, 06:57

This may not be what you want to hear, but I would bring it to Volvo to see if they can read codes from the OBDII port.

Post by **firekiller75** » 11 Dec 2009, 14:37

FCPGroton wrote:This may not be what you want to hear, but I would bring it to Volvo to see if they can read codes from the OBDII port.

Bah... Totally not what I want to hear. Was looking for a response like "I had the same problem, and when I replaced this certain fuse, not only did my OBD-II work, my car ran like new!"

That would be nice...

Post by **firekiller75** » 14 Dec 2009, 07:33

So no one else on the board has ever had this issue?

Post by **jblackburn** » 14 Dec 2009, 08:15

If the center console has ever been removed for any reason, it's possible some of the wiring for the OBD connector was pulled out of the sockets for the connector. Have you ever been able to pull codes on this car before? If the Volvo dealer itself can't pull codes, they shouldn't be able to charge you for anything...but they probably will.

The 4WD transfer case in my dad's Jeep was replaced under warranty, and after spending almost a week with parts on order, the idiots at the Chrysler dealer "forgot" to plug the switches in the console back in for the electric windows, which they left down. There was actually a wire hanging out from under the stupid thing.

Post by **BEJinFbk** » 14 Dec 2009, 12:20

jablackburn wrote:If the center console has ever been removed for any reason, it's possible some of the wiring for the OBD connector was pulled out of the sockets for the connector. Have you ever been able to pull codes on this car before? If the Volvo dealer itself can't pull codes, they shouldn't be able to charge you for anything...but they probably will.

The 4WD transfer case in my dad's Jeep was replaced under warranty, and after spending almost a week with parts on order, the idiots at the Chrysler dealer "forgot" to plug the switches in the console back in for the electric windows, which they left down. There was actually a wire hanging out from under the stupid thing.

+1 for an unplugged OBDll socket. That's about all I can think of, too.
Any common OBDll reader should pull the basic codes with no problem.
I'd go with pulling the console and having a look. Let's hope it's that simple!