When does the service trailer brake system work?

The ITBC system is fully functional only when the ignition is in ON/RUN. SERVICE TRAILER BRAKE SYSTEM: This message will display when there is a problem with the ITBC system. If this message continues over multiple ignition cycles, there is a problem with the ITBC system. Have the vehicle serviced.

What does DIC mean for service trailer brake system?

DIC was first showing service battery/charging system; then DIC started reading check trailer brake system (mind you, two separate DIC readings now—first it was the charging system, then the trlr brake system). Checked fuses, alternator, trailer brake module inside car—– put in new battery—seemed like that was it. Dead again.

How can I tell if my trailer brakes are no longer working?

C1114, and display the “Service Trailer Brake System” message on the DIC. This could be an indication that the trailer brakes are no longer functioning. In other cases, when the trailer mounted sway module activates, the vehicle could display the “trailer disconnected” message, indicating that trailer brakes are no longer available.

Where is the trailer brake system in a car?

Removed trailer brake module inside car, (there are two—one underneath car in back where spare tire is & one inside car driver side dash. Trying to keep it simple, removed only the Trlr brake system module inside car driver side—seemed a bit loose. Plugged it back in. Everything was absolutely perfect!!!

When to have your service trailer brakes serviced?

SERVICE TRAILER BRAKE SYSTEM: This message will display when there is a problem with the ITBC system. If this message continues over multiple ignition cycles, there is a problem with the ITBC system. Have the vehicle serviced.

What does the check trailer brake message mean?

CHECK TRAILER WIRING message will continue until the ignition is turned off. This harness is re-connected or repairs are completed. There is an electrical fault in the wiring to the electric trailer brakes. The CHECK trailer wiring. This message will also turn off if the driver acknowledges this message

Is there a service trailer brake message on my GMC Sierra?

GMC sierra has a “service trailer brake” message. I replaced the controller and the message still comes up. I next need to clean the G401 ground connector. I can’t find it.

Are there problems with the built in trailer brake system?

Plenty of problems with the built in trailer brake system, see your dealer. Best is going to the dealer and have the codes read. See what may be happening. My 2016 has had a bunch of problems with the service trailer brake. Not sure it has been resolved, but it has been better after the dealer replaced the trailer plug.