What is QBDII ?

Ladley · Post by **Ladley** » 14 May 2004, 15:14

I have a Volvo 850 GLT 1995
What is the circuit panel?? under the change holder? It says QBDII on the cover?????

Post by **matthew1** » 14 May 2004, 15:56

It's 'OBDII' and it means Onboard Diagnostics II. It's a computerized system that records and details faults in your Volvo.

Your 1995 probably does not have it, despite the word in the plastic piece.

All cars and light trucks built and sold in the United States after January 1, 1996 were required to be OBD II equipped. In general, this means all 1996 model year cars and light trucks are compliant, even if built in late 1995.

Here's more:
http://www.obdii.com/connector.html

Ladley · Post by **Ladley** » 14 May 2004, 21:18

Under the plastic coin holder there is a "plug" kind of looks like a computer hook up..... is there something that plugs in to that for diagnostics?

Post by **matthew1** » 14 May 2004, 23:45

Yes, you may plug in a code reader to it.

http://www.autotap.com/ is one of a dozen or two different manufacturers. For more go to Google.com and search on 'obdii code reader.'

Search this site https://www.matthewsvolvosite.com/forums/search.php for the same term.

White850Turbo · Post by **White850Turbo** » 15 May 2004, 13:52

I have a '95 850 Turbo and have the same thing that Ladley described. My Volvo mechanic said that although it wasn't required for manufacturers to include OBDII systems in their cars until the 1996 model year, Volvo chose to do so on most of their models starting in 1995.