Forum Discussion
ktmrfs
May 17, 2022Explorer II
Vehicles from all 3 mfg seem to have the problem show up occasionally. The GM system looks for a given resistance on the brake control wire to determine if the trailer brake system is connected. Once it thinks it is, it continues to monitor and if it goes out of range then the warning comes up. I suspect this is similar on others as well.
GM has had a few TSB's on the issue. What I have found it to make sure the connector on the TV and trailer is well seated, and clean. And that the TV connector doesn't have any moisture in it.
Also some of the lesser brands of trailer plugs have pretty weak spring force on the contacts, doesn't help.
GM has had a few TSB's on the issue. What I have found it to make sure the connector on the TV and trailer is well seated, and clean. And that the TV connector doesn't have any moisture in it.
Also some of the lesser brands of trailer plugs have pretty weak spring force on the contacts, doesn't help.
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