Fuse ( # 17 ) is a 20 amp fuse for the cigarette lighter and Data Link
Connector on a 2001 Ford Ranger if there is no power
You need an OBDII scanner to retrieve the codes.
No
Perhaps there are no codes set to read.
sure you can just hook up a scanner. OBD 2 plug in if im correct and get the codes.
CHECK OWNERS GUIDE
You need to go to autozone/advanced auto and check the codes with their scanner if you do not have one. Then to go saturnfans.com and in the how-to library the codes are listed by Wolfman.
The OBD2 system will not BLINK codes for you. It requires a engine scanner to read the codes. HAVE ENGINE SCANED. Some parts stores will do that for free.
You will need an OBDII scanner tool to check the codes. If you don't access to a scanner tool, AutoZone and similar auto parts stores offer a free scan.
After reading the codes, with a scanner. You repair cause of code, and then can reset code with the scanner.
You can't manually get the check engine light to give you the trouble codes on your vehicle. 1995 and later vehicles use the OBDII system and you must use a scanner tool to retrieve the codes. You can go to AutoZone or similar auto parts store that offers free scans to get the trouble codes retrieved. Or you can buy your own scan tool for about $70.
You will need an OBD II tester to retrieve the trouble codes. The connector is located under the dash (in plain view) within 12 inches on either side of the steering column as this is mandated by the Federal Government.
I'm certainly NOT a mechanic but .... since the trouble codes are stored in the vehicle's on-board computer I doubt that there IS any way to retrieve them without a device and a program that can "read" the car's computer.