You can visit your local auto parts store, often they offer to read the code that is setting your engine light on. You can have more of a basis to go on before taking to a repair facility. Often when you visit a dealership it is $70+ to read the codes.
You don*t necessarily have to go to a Nissan dealership to have your vehicle serviced. Although Nissan will replace any needed parts with genuine Nissan parts, aftermarket is almost always just as good - especially for an older vehicle.
〉 Answered on Jan 21st, 2009 by Suzanne Grego, Technician at City of Philadelphia Fleet Management