hello all Can someone help me diagnose what the code sfu 164 sid 254 fail 03？recently I bought a 2010 Freightliner cascadia, I found all rest area lamp and outlet not working. I can see the dash show codes CAB 249 and SFU 164 alternated.All fault code I can see is CAB 249 SID 254 FAIL 03, Another is SFU 164 SID 254 FAIL 03. Any comments are appreciated. Thanks.
All I could dig up woth a quick google is that the first code means that there is no data recieved to the switch field unit. check fuses behind glove box to start with, do a little research about the SFU and see if you can find more on it
Apparently the second poster must have had piggybacked onto this old thread with codes of his own. I would not know how to reply to this. It will only confuse the situation even though it is not too difficult to google codes in general.
