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Home >> Cadillac >> 2014 >> Escalade ESV Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Wiring Systems And Power Management - Component Connector End Views - Radio (X2 Without UL5) To Yaw And Lateral Sensor) >> Component Connector End Views >> Trailer Brake Control Module (JL1 with 31 Series)
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Trailer Brake Control Module (JL1 with 31 Series)

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.
GM1858233Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Chassis
  • OEM Connector: 15491306
  • Service Connector: 19168025
  • Description: 47-Way F ASG Series Sealed (BK)
Terminal Part Information
  • Pins: 1, 32
  • Terminated Lead: 13327187
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-42 (RD)
  • Terminal/Tray: 15476168/5
  • Core/Insulation Crimp: F/3
  • Pins: 2, 6-9, 10-11, 14-15, 17, 21-22, 25, 28, 33, 37
  • Terminated Lead: 13578883
  • Release Tool: Not Available
  • Diagnostic Test Probe: Pending
  • Terminal/Tray: Not Available
  • Core/Insulation Crimp: Not Available
Trailer Brake Control Module (JL1 with 31 Series)

Pin Wire Circuit Function
1 2 BK 1750 Ground
2 0.5 D-BU 7632 5-Volt Reference
3-5 - - Not Used
6 0.5 TN 2501 High Speed GMLAN Serial Data Bus (-)
7 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus (+)
8 0.5 TN 7631 Low Reference
9 0.5 L-GN 944 Relay Feedback
10 - - Not Used
11 0.5 L-GN/BK 7633 Integrated Trailer Brake Controller User Gain Signal
12-13 - - Not Used
14 0.5 TN 945 Integrated Trailer Brake Relay Control Active Low
15 0.5 PK 239 Ignition 1 Voltage
16 - - Not Used
17 0.5 L-BU 5986 Serial Data Communication Enable
18-20 - - Not Used
21 0.5 TN 2501 High Speed GMLAN Serial Data Bus (-)
22 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus (+)
23-24 - - Not Used
25 0.5 BN 7634 Integrated Trailer Brake Controller Redundant Manual Apply Signal
26 - - Not Used
27 0.5 YE 7635 Integrated Trailer Brake Controller Manual Apply Signal
28 0.5 D-BU 47 Solid State Relay Feedback
29-31 - - Not Used
32 2 RD/WH 4340 Battery Positive Voltage
33 0.5 YE/BK 7521 Solid State Relay Enable
34-36 - - Not Used
37 0.5 L-BU/WH 6311 TCC Brake Signal
38-47 - - Not Used
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