I had recently thrown a code for a 'misfire detection monitor disabled' , never did address the issue. But just the other day the service engine light went off, the light had been on all this time and now it's off. My question is, how do I know if the light is just burned out. Is there something safe I could do to make the light come back on just to see if the light is actually still works.

2000 f 150 4.2 v6 232,000 miles

 

Code scan it.
Unless you have unplugged the battery cable, the code will still be stored.

The light is supposed to come on during the key on bulb test. When you first turn on the key, watch for the light. If it never turns on it is burned out or the PCM is having power or logic issues.

 

If you turn the key on without starting the engine the Check Engine light will be on.

 

When you turn the key on your truck does a lamp check. All come on. It's actually something we have to check for in states that have emission inspections. Turn it to run and it should illuminate. The computer will turn the lamp off if the problem doesn't reoccur within so many drive cycles. Hopefully it's just that.

 

Well thanks for all the insight guys, I will check remedies after work, however, due to the previous code which was p1309, I wouldn't be surprised if I am having pcm issues just because of what I researched in order to remedy the code. There were several possibilities. Thanks again

2000 f 150 4.2 v6 232,000 miles

 

Had obd scan today, still showing the same codes as before, however, the light does NOT come on with key on engine off.

2000 f 150 4.2 v6 232,000 miles

 

The CEL lamp has either been disabled by the last owner or is burned out from being on so long.
It is lighted independently of any fault code during the checkout time same as the rest of the dash lamps.
.
The 1309 is a PCM fault with a chip that generates high speed crank profile data and passes the processed results to the PCM main processing.
You have 2 issues.
Good luck.