Can Bus Comms BCM codes

GreetSlide808

New member
Feb 11, 2014
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Anyone had these codes? I recently got 3 codes that came and went. Reset itself. The codes were U0141 LHCM loss of comms, U0142 RHCM loss of comms and U0156 Speedometer loss of comms. The electrical manual says the speedometer is the priority one to be looked at first. I just think it's weird all three came on at once and then reset. Its been very damp here and Im wondering if moisture got into one of my connectors . I also noticed HD didnt use dielectric grease on any of the connectors. Im going to put grease on all connectors involved and see if the codes come back. I did however clean, reconnected and test rode for about 20 miles , no codes so far. Just wondering if anyone else experienced this. Other than that bike has been awesome with 30k miles
 
A lot of times, communication codes will set for other modules down line from the one that quit communicating. So if the speedo quit talking the other two codes may have set because they never received any info from the speedo. There may not have really been any issues other then your speedo (module) locked up.


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