Here is how to read the trouble codes on a 1988 to 1995 General Motors or Chevrolet truck. This probably also works for cars made by General Motors between 1988 and 1995. To read the trouble codes when your check engine light comes on on one of these old cars, you just need to put a paperclip in between two terminals, and then turn the ignition on, and the check engine light will flash the code, which you can interpret to find out what is wrong with your engine. This is a very simple system, but it works well, and it is easy to check as long as you have a manual that tells you what the trouble codes mean. Different models of cars have different sets of trouble codes, so you have to make sure you have the right list of trouble codes for your car. That is how to read the trouble codes on your 1988 to 1995 General Motors Chevrolet car or truck When your check engine light comes on.
Here is where to order a repair manual to help you fix your Chevy truck:
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