HI, My 2004 crewcab f150 airbag light flashes 2 1. I found a chart that reads code 21 means (diagnostic monitor not mounted to vehicle properly) I have disconnected battery taken out fuse checked all connection still flashes 21. It also reads its the passenger side... Does anybody no where the Diagnostic Monitor is located on a 04 f150 crewcab or how you clear the code so it resets. And also this just happened one day when I turn on the truck no accidents no airbags popped out.....THANKS

 

the airbag module does a diagnostic system check once every start up. if the system passes, the light stays off. if the system fails, the light comes on. it will do you no good to clear the diagnostic code as it will just test itself at the next start up...fail and reset the warning light. the only way to clear this light is to fix the problem.

 

Thanks but I already knew all that, I needed to know what actually I'm supposed to check cause the reason I found, That the diagnostic monitor not mounted to vehicle properly doesn't make sense, Their has to be something else I'm missing. Thanks to any body that can Help

 

not sure where you are getting your information; a diagnostic monitor is software programming that is used to run the system tests.


if you are looking for the restraint control module it is located between the 2 front seats under the center console.


If you post a dtc from a scan tool I can troubleshoot that diagnostic. Unfortunately, I have no access to diagnostic information for flash codes.

 

I have found most the info on this site, That's why I registered to get some direct info, So I'm guessing the diagnostic monitor and the R,C,M are the same thing which I did find it, But what do all the web sites and on this site mean when they say;.... (Restraint Control Module NOT mounted to Vehicle Properly).... This is the same answer I seem to end up with on all the sites but my RCM is clean and bolted down so their most be something else they are referring to. Thanks

 

Ok hers that code #B2293 Can you do anything with that I hope it help's. Thank you for trying to help...

 

Does anybody know where the airbag pinpoint K is on a 2004 f150 crewcab or do you know a site I can find the wiring diagram for the airbags ANY HELP ANYBODY!!.....Thanks

 

I'm a little late on this one, but could you please tell us where you obtained the description for the code B2293? It is possible there may be some confusion regarding the info. The info I checked states something along the lines of a circuit failure. Pinpoint tests are usually pursued only after certain preliminary tests are conducted and then directed to go to particular pinpoint tests. Thanks

 

These are the codes I have, and I found the same codes online it said to go to pinpoint test K. The code 21, only suggest the rcm is not mounted to vehicle properly Which it is.... So I wanted to know where the pinpoint K was located so I could check it to see if it might help. what do you think I should check?. Thanks

 

The checks that I made suggested a circuit failure in the passenger side air bag system. It didn't state anything regarding the monitor mtg.