Body Control Module (BCM) X2

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 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

Courtesy of GENERAL MOTORS CORP.

Pin	Wire Color	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
13-16	-	-	Not Used
17	0.35 D-GN	306	Headlamp Switch Headlamps Off Signal
18	0.35 D-BU/WH	149	Courtesy Lamp Control
19	-	-	Not Used
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

OEM: 15482790
Service: 88988839
Description: 25-Way F HIT Series (NA)

Terminal Part Information

Pins: 1-5
Terminal/Tray: SNAC-A061T-M2.8/20
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: 6-25
Terminal/Tray: SNAC3-A021T-M0.64/20
Core/Insulation Crimp: J/J
Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)