Dubs.......for goodness sake! It was just a spoof! There are no timing belt sensors (don't look for the green money symbol, it won't ever appear)!

KlausC says, Just looking at A1 (tranny) is not good enough. Look at all of the other A ports & Just be sure to show them where the port is -- under the "coin holder".
Dubs wonders...when did I say I was looking @ the tranny port "A-1" ? And, show them where the port is...under the "Coin holder ?? Im glad I didnt rip out my console looking for the "Code Port" knowing the diagnostic box is under the hood !!

Then, Gwen says...Dubs you need to go to your volvo dealer and have a chat with your service advisor.......between losing wireless keys and not knowing that timing belts get changed every 75,000 miles....
Wow, Did I just loose my "Wireless Keys" ?? Did I say anything about loosing Key's ? Hahaha, How amusing... Anyway, Its 70,000 miles when my belt needs to be replaced but its hard to know when that is after your Odometer Goes Out showing 103,000 miles !!!

And now on to Hoffa96...
He seems to have the most advanced thoughts ! Many of them deem paranormal (usually brought on from playing too much Half-Life, F.E.A.R, etc..), But, with typing skills far beyond mortal men, In My Opinion, probably knows more about timing belts than anyone I've ever spoken with in my life..and he knows about the "Cup Holders" !!
Thanks to everyone for the input !! That was fun, I need to write ya'll more often.

Dubs, my good buddy, don't believe a word these guys are telling you. The 94 Volvo has a triple redundency timeing belt sensor and a warning system as well. You see, Volvo engineers knew that sooner or later some broke ass paranoid schitozophrenic psycopath would inherit an 850 from their dead aunt millie with a broken odometer and no keyless fobs and would obsessive compulsive about the timing belt. So....between the timing cogs you will find the timing belt sensors. The are small and square and pretty much in a row about a 1/4" below the timing belt. The first sensor is a Scania type two radiative reflective measuring switch. It has a small amount of depleted uranium in it and a convex lense at the top. It beams radiation through the timing belt and measures the speed at which the radiation is bounced back through the belt. It also measures cracks in the belt as small as one nanometer. The next sensor is a Lamda Mark 4 high intesity light diffusive pulse. This sensor flashes light at the belt to count the cogs as they pass overhead and measures the amount of oil on the belt from the leaking seals you have never replaced. Lastly there is a Wiegand sytem 2 carbon 12 air inducting comparetor. The device measure the amound of carbon 12 in the air around the timing belt by comparing the air to a know sample of carbon 12 on a quarz crystal. If there is not a correct ratio of carbon or if new carbon is generated from a smoking deteriorating belt, it will trigger the warning system. All three sensors work at the same time to generate a number between -1 and 100. 100 being a new belt. If the number generated falls to 18, then a large green money symbol starts flashing on the background of the tach. Now, since you spend most of your time wondering who is following you in that huge extended wheelbase chrysler 300M, you probably won't see this first warning sign. The engineers thought you would think you had won some Willy Wonka type contest and rush to the dealer- only to be hit with a 500.00 bill to replace the belt. Now if the number drops below 6.7 the money symbol starts to flash quickly, and the Swedish national anthem starts to play on the radio. Kind of loud I'm told. But, since you have alot going on in your head anyway, and those damn guys are still back there......how come Dr. Z and his engineers can't line up the hood with the grill on that 300M anyway. It's really anoying. Well, as the number falls to 3, some crazy ass recording of General Motors boardroom meeting comes on. You hear the then CEO, Roger Smith, ranting and raving about who gives a damn about Japeneese fuel economy, or german design, or swedish safety gizmos. All americans want is a heavy ass car with a 350 cubic inch v8! Thats why, he adds, he just approved the worlds case of groupthink, by signing off on the 92 Buick Roadmaster and Chevy Caprice....some designer shouts out that they look like a harpooned sperm whale rolling down the road......but Roger just keeps screaming. I mean, If you havent figured out there is problem by know, you never will. Lastly, the number generated by the sensors is -1 (timing failure) so the pistons and valves launch through the hood of your car, a 1940's series toaster oven buzzer will sound and the right front caliper will lock up and send you rolling into a ditch somewhere. (no swedish car goes to the junkyard without an accident) So there you will be upside down with a bloody nose and bruised face looking through the shattered windshield at your bent wiper blades. "who gives a shit, they never worked anyway" and youll smell gasoline. I mean, hell, you shouldn't have gotten into that pissing match with the service advisor at volvo over who was going to pay for the leaking tank. You said it was a safety flaw and the advisor said U2 spy planes leak jet fuel like a sive on takeoff and none ever blew up. Well you said screw it and screw you and screw everyone and just filled your tank up 90 percent. So what if the fumes made it a nuclear bomb ready to go off at any time. Genius, your upside down now and it's raining gasoline on your sorry stinking cheap ass. To make matters worse that damn buzzer wont go out and the freaking up flashy arrow is on again! What the hell? It's stranded you about 8 times know and your sick of some punk ass mechaninc telling you that Mountain
Dew you spilled over the shifter is gumming up the damn PNP switch! How in the crap does he know it's mountain dew. Where are the damn cupholders anyway in these cars anyway. Well you know your FUBAR now, and just when you think you'll unbuckle and walk away from this one, you hear the door's lock and see the four guys with dark suits and sunglasses behind you. Oh shit! He did use a key fob from a 98 to lock the car! I knew they worked.... bought 300 on ebay and this joker finally gets the right one! You also notice a cigarett butt floating through the air towards the car........you see, this is just the sort of thing you told the service advisor about. The last thing you realize is that you wish aunt millie had bought a 92 buick roadmaster.

Ok, Finally found the Code 1-2-1 (MAP Sensor) on Socket #2 in Module "A" Diag box. Now I just need to find out whats wrong with it ! I guess it can be either Vacuum or an Electrical fault. Any Help would be apprieciated !

You can always check the odometer with the diagnostic tool. Look under 700/900 FAQ section.
The check engine light will only come on if there are codes stored. Just looking at A1 (tranny) is not good enough. Look at all of the other A ports.

If it is the service engine light, you can reset that also.

Klaus
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1975 164 w/174,800mi (Sold) 1995 850T w/91,000mi, 1998 V70R w/129,000mi

No.