What is wire 348C on the wiring harness?

HmmwvTim

Member
51
16
8
Location
IL
Hello all, I have searched for what this wire is, but can’t find anything about it. Below are some photos:

The list of military vehicle wire codes:
B64C220C-FB33-4C51-9B37-6A1C39D78824.jpeg

The plate with 348 C code. View from the top behind the alternator.
8E9F7FEB-6121-4989-909A-6A2A61CA9CDA.jpeg23E03BA6-130D-4CF1-96E6-55AF146B510A.jpeg

from the bottom far away:
C3DA72A5-9476-4706-B4C3-86F5D808B670.jpeg
closer
D6483FBC-4676-43BE-A7FC-EA17AA648855.jpeg
up close
71DC7CCF-944B-4BC8-A96F-B6876255DED4.jpeg
 

Action

Well-known member
2,884
643
113
Location
East Tennessee
I wouldn't go by that first list pic posted above. Use the HMMWV TM for real wire details. There is a 249C under the alternator, but it has nothing to do with steering or oil temp (as shown on that list). I cant see the numbers in your pics. If it is 349, then it should go to a plug with another wire, to the rpm sensor.
 

HmmwvTim

Member
51
16
8
Location
IL
I wouldn't go by that first list pic posted above. Use the HMMWV TM for real wire details. There is a 249C under the alternator, but it has nothing to do with steering or oil temp (as shown on that list). I cant see the numbers in your pics. If it is 349, then it should go to a plug with another wire, to the rpm sensor.
Definitely 348C
i posted 2 photos of it because it is hard to see. No manual focus on cameras these days. If you look at them long enough, you can make out the 3 and more so the 4. The 8 and C are pretty clear.
 

Action

Well-known member
2,884
643
113
Location
East Tennessee
348C comes from F on the TCM j1 plug (AC request). The loose end of the wire should just have what looks like a plug in it. It is some kind of electrical diode in the newer trucks. You could also have a 3rd wire with a plug near the horn (258B), and another near the transmission.
 

HmmwvTim

Member
51
16
8
Location
IL
348C comes from F on the TCM j1 plug (AC request). The loose end of the wire should just have what looks like a plug in it. It is some kind of electrical diode in the newer trucks. You could also have a 3rd wire with a plug near the horn (258B), and another near the transmission.
Thanks again action. I did see it somewhere that it was “AC request (not used)” somewhere. Also it explains why I don't see metal wire at the tip of the wire yet it forms like a metal wire when I bend it.
 
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website like our supporting vendors. Their ads help keep Steel Soldiers going. Please consider disabling your ad blockers for the site. Thanks!

I've Disabled AdBlock
No Thanks