If you can not read codes with a scanner you have a wiring problem.
you check the system for trouble codes.
See link below for a complete list of trouble codes.
pretty much instantly. As soon as the codes are cleared the check engine light goes off and vice versa, unless there still is trouble. In this case the codes won't clear until the trouble is repaired.
Check engine codes on Honda vehicles such as a 1992 Honda Civic have to be manually reset. To do so, remove the ECU fuse located inside the engine bay.
Suggest you have it checked for trouble codes. The engine computer and airbag system should both have codes.
A problem with the emission system. Need to have trouble codes checked.
Pending trouble codes: These are similar to normal trouble codes, but they are set after a single driving cycle, and usually before the check engine light is illuminated. Useful after repair work has been finished
The check engine light is reset with a scan tool after repairing the failure that caused the trouble codes.
After the Explorer is scanned for trouble codes to diagnose and then repair the malfunction , then the check engine light can be reset
have vehicle scanned to determine the problem and hae codes cleared
Have vehicle scanned to determine the problem and have codes cleared
check the codes and see what comes up, that'd be where i start...