I'm trying to find out if the ECU on a 96 camry has a built in LED light to indicate error codes that are stored in the ECU? Autozone can not tell me the codes because they do not have the correct tester for the plug that I have. I hate to buy the code reader just for one code. Does anyone know of a homemade reader that I can make? I made such a reader for my Mits eclipse and thought someone might have done the same for a 96 Camry?

 

96 is OBDII...do you live in a state with state emission testing?