Trailer wiring fault w/ C2806?

[GregH]

Anyone else run into this? Customer is complaining of a message on the IC and a chime every time he hits the brakes or turns on the right turn signal. SSM 19730 doesn't give any direction, other than to follow the pinpoint test. Pinpoint test says to replace the TBC.

 

No corrosion or water in any connectors.

 

I'm not willing to replace the TBC yet. I don't feel that it will resolve the problem unless it is an updated part...

[eastendpowerstroke]

have you used the tester? does it do the same thing with other trailers?

what year is the truck ? I know that the "early" build TBC part # was replaced by the "late"build part