Jaguar vehicles display many different check engine codes, such as P1777, P1720 and P1367. Fault codes in Jaguar vehicles do not display the details about a problem with the vehicle, so a fault code database is helpful to determine what each specific fault code means.
Fault codes on a Jaguar can indicate both serious and mundane problems. Some fault codes indicate that the engine performance is not optimal, while other fault codes indicate that electronic circuitry in the vehicle is faulty and should be repaired. There are some fault codes that remain the same across models, while some models may generate fault codes specific to that particular model and year of vehicle. If a fault code is displayed on a Jaguar, it should be investigated immediately, as it may indicate a serious problem.
Fault codes are typically read by attaching a fault code reader to the Jaguar. This device collects the fault code information and displays the codes on its screen. If a person is unable to locate information about a specific fault code on the Internet, he may consult with an automotive technician. Most technicians are able to perform a more advanced scan, or they may have access to fault code tables that are more up to date than those found on the Internet.