Trailer Brake Control Switch (JL1)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Trailer Brake Control Switch (JL1) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1-2	-	-	Not Used
3	0.35 D-BU	7632	5-Volt Reference
4	0.35 YE	7635	Integrated Trailer Brake Controller Manual Apply Signal
5	0.35 BN	7634	Integrated Trailer Brake Controller Redundant Manual Apply Signal
6	0.35 L-GN/BK	7633	Integrated Trailer Brake Controller User Gain Signal
7	0.35 YE	6817	LED Backlight Dimming Control
8	0.35 TN	7631	Ground Return

Connector Part Information

Harness Type: Brake/Clutch
OEM Connector: 13518475
Service Connector: 13576542
Description: 8-Way F YESC Kaizen Series (BK)

Terminal Part Information

Terminated Lead: 13575845
Release Tool: J-38125-215A
Diagnostic Test Probe: J-35616-64B (L-BU)
Terminal/Tray: SAIT-A03T-M064/14
Core/Insulation Crimp: P/P