See the other thread today on the 94 C280. I believe a 95 C is fully OBDII compliant (certainly CA was) in which case you should have an OBDII port under the dash (or somewhere within 3 feet of the driver's seat). If this is the case you should be able to go to Autozone and have codes read, or buy a simple OBDII reader for $50 to $100. Or you can try the 38 pin and see if there is any flash code reading there with Arthur's code reader - again per the other thread.