If you have a code "1518," it's likely:
* A non-standard code: Some scan tools or aftermarket diagnostic systems might use their own internal numbering system. This wouldn't be a standard OBD-II code.
* A misreading: The code might have been entered incorrectly.
* From a different system: The code could be from a different vehicle system entirely, not the engine control module (ECM).
To find the correct trouble code, you need to use an OBD-II scan tool. These tools can read the diagnostic trouble codes stored in your Cougar's computer. Once you have the actual OBD-II code (starting with "P," sometimes "B," or "C"), you can look it up online to understand the problem. Many free resources are available to decode these codes.