2003 Lincoln Navigator 5.4 4wd
3 Answers
Also, try reading the theft light codes. "Turn the ignition switch to the run position and watch the theft light as it flashes quickly for one minute. After the 60 second period of the theft light flashing rapidly the light will go out. Then it may start flashing slowly in a pattern." -sparkys-answers.com Then look them up on google, or post them back here.