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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1005 (DATA COMMUNICATION SYSTEM)COMPONENT LOCATORDATA COMMUNICATION CONNECTORSBODY CONTROL MODULE (BCM) X3
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Body Control Module (BCM) X3

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Body Control Module (BCM) X3
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: Body Control Module (BCM) X3 Connector End View
GM1664498Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X3 Connector Parts Information

Connector Part Information 
  • OEM: 15482791
  • Service: See Catalog
  • Description: 25-Way F HIT Series (L-BU)
Terminal Part Information 
  • Pins: 1-3, 5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 7-13, 16-19, 21, 22, 25
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)
Body Control Module (BCM) X3 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 0.8 BK/WH 1851 Ground
2 0.8 RD/WH 2140 Battery Positive Voltage
3 0.5 RD/WH 3840 Battery Positive Voltage
4 - - Not Used
5 0.8 BK/WH 1851 Ground
6 - - Not Used
7 0.5 GY 728 Security Indicator Control (SPO Alarm)
8 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+
9 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
10 0.35 D-GN 5060 Low Speed GMLAN Serial Data
11 0.35 D-GN 44 Instrument Panel Lamp Dimmer Switch Signal
12 0.35 OG/WH 812 12-Volt Reference
13 0.35 PU 7062 Brake Switch Signal
14-15 - - Not Used
16 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+
17 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
18 0.35 YE 6817 LED Backlight Dimming Control
19 0.35 L-BU 5986 Serial Data Communication Enable
20 - - Not Used
21 0.35 OG 192 Front Fog Lamp Switch Signal/Fog Lamps Enable (T96)
22 0.35 GN/WH 7158 Cruise Control Indicator Dimming Signal
23-24 - - Not Used
25 0.35 PU/WH 6816 Indicator Dimming Control
RENDER: 1.0x

NO RELATED

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

  • • You smell fuel, burning insulation, or see smoke.
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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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