Information on Electric Trailer Brake Controller Wiring - Towing, Tow
| Subject: | Information on Electric Trailer Brake Controller Wiring -- Towing, Tow |
| Models: | 2007 Cadillac Escalade, Escalade ESV, Escalade EXT |
| 2007 Chevrolet Avalanche, Silverado, Suburban, Tahoe |
| 2007 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
Some customers may have questions on how to connect an electric trailer brake controller or where the brake controller pigtail harness is located.
Starting with the new 2007 full size utilities and pickups, there is no longer an electric trailer brake controller pigtail harness.
The trailer brake controller wiring is now part of the Instrument panel wiring harness and the blunt cut wires are located under the left instrument panel, behind the data link connector. There are four blunt cut wires in this harness as described below.
Wire Color | Circuit # | Description |
|---|---|---|
Red/Black | 242 | 12 Volt power supply (30A stud #2) |
Dark Blue | 47 | Trailer brake output voltage |
White | 22 | Ground |
Light Blue | 6311 | Stop light input |
The Red/Black circuit 242 must be connected to stud #2 of the 30 Amp fuse of the UBEC. This wire is located between the left fender and the UBEC (1). Refer to Trailer Connector/Provision Schematic in SI for document information on the trailer brake control-- Domestic.
