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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1041 (TRAILER BRAKE CONTROL SYSTEM)COMPONENT LOCATORTRAILER BRAKE CONTROL CONNECTORSTRAILER BRAKE CONTROLLER SOLID STATE RELAY
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Trailer Brake Controller Solid State Relay

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Trailer Brake Controller Solid State Relay
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Trailer Brake Controller Solid State Relay Connector End View
GM1664576Courtesy of GENERAL MOTORS CORP.
Trailer Brake Controller Solid State Relay Connector Parts Information

Connector Part Information 
  • OEM: 15326635
  • Service: 88953154
  • Description: 6-Way F GT 280 Series (BK)
Terminal Part Information 
  • Pins: A-B, F
  • Terminal/Tray: 15304720/19
  • Core/Insulation Crimp: 4/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: C-D, E
  • Terminal/Tray: 15304719/19
  • Core/Insulation Crimp: E/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
Trailer Brake Controller Solid State Relay Connector Terminal Identification

Pin Wire Color Circuit No. 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
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.