Body Control Module (BCM) X2

2006 Chevrolet Suburban C2500, 6.0 USECTION Body Control Module (BCM) X2
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. 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 0.5 OG 6815 Inadvertent Power Control
2 0.5 RD/WH 2540 Battery Positive Voltage
3 0.5 BN/WH 230 Instrument Panel Lamp Dimming Control
4 - - Not Used
5 0.5 GY 157 Interior Lamp Control
6-7 - - Not Used
8 0.35 L-BU 13 Headlamp Switch Park Lamp Signal
9-10 - - Not Used
11 0.35 WH 278 Ambient Light Sensor Signal
12 0.35 WH 103 Headlamp Switch On Signal
13-15 - - Not Used
16 0.35 L-BU 3203 Outage Detection Signal (T4Q)
17 0.35 D-GN 306 Headlamp Switch Headlamps Off Signal
18 0.35 D-BU/WH 149 Courtesy Lamp Control
19 0.35 D-BU 3204 Outage Detection Signal (T4Q)
20 0.35 PU 5357 Right Tail Lamp Outage Detection Signal (Z75 with E52)
21 0.35 L-BU 1788 Traction Control Switch Signal
22 0.35 D-BU 38 Backup Lamp Relay Control
23-24 - - Not Used
25 0.35 PU 328 Interior Lamp Switch Voltage Control
Connector Part Information
  • Harness Type: Instrument Panel
  • OEM Connector: 15482790
  • Service Connector: 88988839
  • Description: 25-Way F HIT Series (WH)
Terminal Part Information
  • Pins: 1-5
  • Terminated Lead: 13327199
  • Release Tool: J-38125-12A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Pins: 6-25
  • Terminated Lead: 13575870
  • Release Tool: J-38125-12A
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
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:

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