Trailer Brake Control Relay (JL1)

WARNING: This page is about a different car, the 2014 GMC Sierra 3500 HD, 2014 GMC Sierra 2500 HD, 2014 Chevrolet Silverado 3500 HD, and 2014 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Chassis
OEM Connector: 15326635
Service Connector: 13580880
Description: 6-Way F GT 280 Series (BK)

Terminal Part Information

Pins: A-B, F
Terminated Lead: 13575403
Release Tool: J-38125-553
Diagnostic Test Probe: J-35616-4A (PU)
Terminal/Tray: 15304720/19
Core/Insulation Crimp: 4/5

Pins: C-D, E
Terminated Lead: 13576356
Release Tool: J-38125-553
Diagnostic Test Probe: J-35616-4A (PU)
Terminal/Tray: 15304719/19
Core/Insulation Crimp: E/5

Trailer Brake Control Relay (JL1)

Pin	Wire	Circuit	Function
A	3 D-BU	47	Trailer Brake Output Supply Voltage
B	3 BK	1750	Ground
C	0.5 TN	945	Integrated Trailer Brake Relay Control Active Low
D	0.5 L-GN	944	Relay Feedback
E	0.5 YE/BK	7521	Solid State Relay Enable
F	3 RD/BK	242	Battery Positive Voltage