Body Control Module (BCM) X3

WARNING: This page is about a different car, the 2009 Saturn Vue. 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

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	1 BK	350	Ground
2	0.8 RD/WH	1140	Battery Positive Voltage
3	0.8 RD/WH	1040	Battery Positive Voltage
4	-	-	Not Used
5	1 BK	350	Ground
6	-	-	Not Used
7	0.35 YE	749	Security Indicator Control
8	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+
9	0.5 TN	2501	High Speed GMLAN Serial Data Bus-
10	0.5 D-GN	5060	Low Speed GMLAN Serial Data
11	0.5 D-GN	44	I/P Lamps Dimmer Switch Signal
12	0.5 OG/WH	812	I/P Dimming Voltage Reference
13	0.35 PU	7062	Brake Pedal Switch Normally Closed Contact Signal (-HP5)
13	0.5 D-BU	6037	Brake Pedal Position (BPP) Sensor Signal (HP5)
14	0.5 OG/BK	6035	Low Reference (HP5)
15	0.5 GY	6036	5 V Reference (HP5)
16	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+
17	0.5 TN	2501	High Speed GMLAN Serial Data Bus-
18	0.5 YE	1491	Backlight Lamps Control
19	0.35 L-BU	5986	Serial Data Communication Enable
20	-	-	Not Used
21	0.35 OG	192	Front Fog Lamp Switch Signal (T37/T96)
22	0.35 D-GN/WH	7158	Cruise Control Indicator Dimming Signal
23-24	-	-	Not Used
25	0.35 PU/WH	1382	LED Dimming Signal/LED Dimming Supply

Connector Part Information

OEM: 15482791
Service: 88988840
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: Pins 1, 5 - C/A
Core/Insulation Crimp: Pins 2, 3 - E/A
Release Tool/Test Probe: 15315247/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: 15315247/J-35616-64B (L-BU)