2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 KFACTORY OEM SERVICE PROCEDURE

Body Control Module (BCM) X2

Fig 1: Body Control Module (BCM) X2 Connector End View
GM1664496Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X2

Pin Wire Circuit Function
1 0.8 OG 1732 Courtesy Lamps Control
2 0.5 RD/WH 2540 Battery Positive Voltage
3 0.5 BN/WH 230 Instrument Panel Lamps Dimming Control
4 - - Not Used
5 0.5 GY/BK 690 Courtesy Lamp Control (YF7)
0.8 D-BU/WH 149 Courtesy Lamp Control (-YF7)
6-7 - - Not Used
8 0.35 L-BU 13 Headlamp Switch Park Lamps Signal
9-10 - - Not Used
11 0.35 WH 278 Ambient Light Sensor Signal
12 0.35 WH 103 Headlamp Switch Headlamps On Signal
13-16 - - Not Used
17 0.35 D-GN 306 Headlamp Switch Headlamps Off Signal
18 0.35 D-BU/WH 149 Courtesy Lamp Control
19-20 - - Not Used
21 0.5 D-BU 6727 Traction Control Preference Switch Signal (JL4)
22 0.35 D-BU 38 Backup Lamp Relay Control
23-24 - - Not Used
25 0.35 PU 328 Interior Lamp Defeat Switch Signal
Connector Part Information 
  • OEM: 15482790
  • Service: See Catalog
  • Description: 25-Way F HIT Series (NA)
Terminal Part Information 
  • Pins: 1, 2, 3, 5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: 8, 11, 12, 17, 18, 21, 22, 25
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)
Factory Service Tools

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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.

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