Body Control Module (BCM) X2

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Body Control Module (BCM) X2
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 GMC Savana Special, 2009 GMC Savana Camper Special, 2009 GMC Savana, 2009 Chevrolet RV Cutaway, and 2009 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
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 Lamp 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 (without 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: 88988839
  • 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)
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.