I've run into a lot of aftermarket scanners that don't communicate. Never looked into why. I have Chrysler's DRB2 and DRB3. They do a lot more than any aftermarket unit, and with the plug-in card that lets the DRB3 work back to 1994 models, it will do generic mode too for emissions stuff on any OBD vehicle.
Even Chrysler experts feel the Intrepid is "an odd breed". They put the engine in the wrong way for starters. If it helps, the sensors work almost identically to GM products, but they never needed a MAF sensor to run right. Even the Idle Speed Motor is the same part. Earlier MAP sensors were GM parts too. They gave a lot of trouble in the late '80s. As of 1999, when I left the dealership, they had very little trouble with computers. The only exception was the '96 and newer minivan body computer disaster.
There are four O2 sensors. Someone might have performed some repairs but forgot to erase the diagnostic fault codes. If the problem doesn't act up again, they will erase automatically after about 50 starts. You'll need a scanner that can access the transmission computer to read its codes. Code 700 just means the engine computer knows there's a code in the transmission computer.
If there is really a problem in the transmission or with its sensors, it will stay in second gear. To reset it, you just have to turn the ignition switch off and restart the engine. If it starts out right away in second gear, suspect a problem with a sensor or its reading. If it starts out in first, then defaults back to second gear immediately after an upshift, the computer has detected slippage in one of the clutch packs. With the DRB3, you can read the Clutch Volume Index, (CVI). Those are four fluid volumes for the four clutch packs. I don't remember what normal is, but those numbers will give you an idea of how much clutch wear has taken place.
Monday, February 8th, 2010 AT 4:23 AM