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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2664 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS PART 2)ELECTRONIC BRAKE CONTROL MODULE (EBCM) (JL4 WITH 10 SERIES)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Electronic Brake Control Module (EBCM) (JL4 with 10 Series)

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Electronic Brake Control Module (EBCM) (JL4 with 10 Series)
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Electronic Brake Control Module (EBCM) (JL4 with 10 Series) Connector End View
GM1862109Courtesy of GENERAL MOTORS CORP.
Electronic Brake Control Module (EBCM) (JL4 with 10 Series)

Pin Wire Circuit Function
1 3 RD/BK 442 Battery Positive Voltage
2 0.5 GY 6044 5-Volt Reference
3 - - Not Used
4 0.5 L-GN 6043 Steering Angle Sensor Signal
5 - - Not Used
6 0.5 D-GN 872 Right Front Wheel Speed Sensor Signal
7 - - Not Available
8 0.5 YE 6046 Steering Angle Sensor Phase A
9 0.5 GY 6044 5-Volt Reference
10 0.5 OG 6030 Brake Booster Vacuum Sensor Signal
11 0.5 D-GN/WH 817 Vehicle Speed Signal
12 0.5 OG/BK 6045 Low Reference
13 3 BK 2150 Ground
14 0.5 YE 2501 High Speed GMLAN Serial Data Bus-
15 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
16 - - Not Used
17 - - Not Available
18 0.5 GY/WH 7065 12-Volt Reference
19 0.5 GY/BK 7128 12-Volt Reference
20 0.5 TN 884 Left Rear Wheel Speed Sensor Signal
21 0.5 GY/WH 7064 12-Volt Reference
22-23 - - Not Available
24 0.5 L-GN/BK 6432 CAN Bus Low Serial Data
25 2 RD 1640 Battery Positive Voltage
26 0.5 YE/BK 2500 High Speed GMLAN Serial Data Bus (+)
27 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus (+)
28 0.5 YE/BK 6032 Low Reference
29 0.5 D-BU 6047 Steering Angle Sensor Phase B
30 0.5 TN 6048 Steering Angle Sensor Phase C
31 0.5 BN 882 Right Rear Wheel Speed Sensor Signal
32 0.5 D-GN 2087 12-Volt Reference
33 0.5 GY/BK 7127 12-Volt Reference
34 0.5 L-BU 830 Left Front Wheel Speed Sensor Signal
35 0.5 L-BU 5986 Serial Data Communication Enable
36 - - Not Available
37 0.5 TN/WH 6433 CAN Bus High Serial Data
38 3 BK 2150 Ground
Connector Part Information 
  • OEM: 13548538
  • Service: 19115671
  • Description: 33-Way F 0.64 GT280 Series Sealed (BK)
Terminal Part Information 
  • Pins: 1, 13, 25, 38
  • Terminal/Tray: 15304720/19
  • Core/Insulation Crimp: 4/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: 2, 4, 6, 8-12, 14, 15, 18-21, 24, 26-35, 37
  • Terminal/Tray: SAITS-A03T-M064/14
  • Core/Insulation Crimp: 9/9
  • Release Tool/Test Probe: J-38125-215A/J-35616-64B (L-BU)
RENDER: 1.0x

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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.