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Discussion Starter #1
The other day i had my air bag light come on and i had the shop i work at run a scan because my scanner didn't pull up the code. The service airbag light was front end sensor three. where would that one be located exactly on the rad support?

Along with the airbag code i have 7 codes including the air bag one:
Antilock Breaks:
U0140 | Lost communication with body control system (Symptom 00) - Test Failed since DTC Clear, History DTC
U0100 | Lost communication with ECM/PCM (Symptom 00) -Test Failed since DTC Clear, Historu DTC
U0102 | Loct communication with Transfer case control module (Symptom 00) - Test Failed since DTC Clear, Historu DTC
AirBag:
B0091 | Front end Sensor 3 (Symptom 00) Current DTC, warning indicator Requested
Vehicle Communication Interface:
U0140 | Lost Communication with Body Control Module (symptom 00) - History DTC
U0184 | Lost communication with Radio (symptom 00) -History DTC

As far as the transfer case goes, after this winter i know that the diff locks up as it should and that isnt a issue so what that could be i don't know. As well the U0184, i wired in a sub and used the stock radio so i had to install a loc, there was two wires of the same colour (2 Sets) i had to figure out which one it was that i needed since there was only one on the wiring diagram. i cut the first one and nothing no difference in the radio nothing different so i never bothered to re connect it. Could this be the reasoning to the radio code? It was two wires, one was turquise with a back line running down it and the other was a dark blue. it was also now that i look at it agin wrapped in its own insolation. As well, i have no idea if these codes where here before or if they where always here. as i have not ever done a full scan with anything other than my chaper obII reader, which brough up no codes.
 

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All the codes are history codes except B0091. Don't worry about the history codes.
See attached regarding your B0091 code.Looks to be a circuit problem, or a bad sensor. Your truck ever been in a front end wreck? Sensor is at bottom of radiator support in the center.
 

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Discussion Starter #3
All the codes are history codes except B0091. Don't worry about the history codes.
See attached regarding your B0091 code.Looks to be a circuit problem, or a bad sensor. Your truck ever been in a front end wreck? Sensor is at bottom of radiator support in the center.
No, its never been in a front end collsion, i am the 3rd owner other 2 have been family. As for the old codes, what exactly is a history code? is it just a code that has come up in the past? and as for the front end impact sensor i pulled it about a week ago and took a look at it. it looks pretty carroded, and starting to crack so i would assume that that would be the cause. when i went up under there to pull the sensor (the day the light came on it was right after a set of train tracks and when i was going a good speed over them so it was a good bump) but what i found was directly under the sensor was a magnet, it wasnt touching but was within 6-8 inches of the sensor and was a fairly strong one too. pulled it off and i have driven it maybe 4 or 5 times since and the light still hasnt gone out, however i saw through the pdf you attached it said something about 100 key cycles? Either way i just dont want to spend the 400+ $ on a new sensor if i dont need it right.
 
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