PIT5282F

Bulletin No.: PIT5282F
Published date: 12/19/2019
Preliminary Information
PIT5282F Procedure for Installation of an Aftermarket Trailer
Brake Controller or In Lieu of Factory Trailer Brake Controller
Models
Brand:
Model:
Model Years:
VIN:
from
to
Engine:
Transmissions:
Cadillac
Escalade
2015 - 2020
All
All
All
All
Chevrolet
Silverado 1500
2014
All
All
All
All
Chevrolet
Silverado
2015 - 2018
All
All
All
All
Chevrolet
Silverado LD
2019
All
All
All
All
Chevrolet
Silverado 2500/3500
2019
All
All
All
All
Chevrolet
Suburban
2015 - 2020
All
All
All
All
Chevrolet
Tahoe
2015 - 2020
All
All
All
All
GMC
Sierra 1500
2014
All
All
All
All
GMC
Sierra
2015 - 2018
All
All
All
All
GMC
Sierra Limited
2019
All
All
All
All
GMC
Sierra 2500/3500
2019
All
All
All
All
GMC
Yukon Models
2015 - 2020
All
All
All
All
Supersession Statement
This PI was superseded to add the 2020 models. Please discard PIT5282E.
Condition / Concern
Some customers may request to have an aftermarket trailer brake controller added to their
vehicle, OR an aftermarket trailer brake controller added in lieu of the factory integrated
trailer brake controller (ITBC) (RPO JL1).
Recommendations / Instructions
1. Obtain a trailer brake controller harness, GM Part # 23184088, as shown below.
2. Connect the harness to the MID-BEC (X61A). The MID-BEC is located under the I/P to the
left of the steering column. The harness connection point (1) is illustrated below.
3. The trailer brake controller harness consist of 4 blunt cut wires and a label that calls out
the wire colors and each wire’s function, also shown below. Use these 4 blunt cut wires to
connect to the aftermarket trailer brake control.
Four Blunt Cut Wires
Dark Blue
Circuit 47
Brake Output To Trailer
Red/Green
Circuit 242
Battery Power (30 AMP)
White/Blue
Circuit 3691
Brake Signal
Black
Circuit 1050
Ground
4. Perform this step ONLY if equipped with RPO JL1 where the customer is requesting the
factory trailer brake system be bypassed to add an aftermarket trailer brake controller.
Locate connector X185 Or X138 (varies with vehicle build; refer to SI), which is near the
underhood fuse block, terminal 32. Circuit 47 ends at the body harness side of X185 or X138
terminal 32, which comes from the X61A junction block. Obtain enough Dark Blue 12 gauge
wire to run from X185 or X138 to the 7-way trailer connector at the bumper. Attach
terminated lead part number 13327155 to one end of the Dark Blue and insert into the
chassis harness side of the X185 or X138 connector terminal 32. Run the Dark Blue wire in
its own conduit along the frame to the 7-way trailer connector at the bumper. Remove circuit
47 from the 7-way trailer connector terminal “C” and tape the bare terminal and attach to
the harness. Attach terminal part number 12110853, located in Delphi Tray 4, to the other
end of the Dark Blue wire, with the correct weather pack seal, and insert it into the 7-way
trailer connector terminal “C.”
Parts Information
Part Number
23184088
Description
Trailer Brake Controller Harness
Qty
1
Warranty Information
If the customer wishes to have an aftermarket brake controller installed in their vehicle, it
would be considered as a Customer Pay option.
© 2020 General Motors. All Rights Reserved.