Body Control Module (BCM) X4

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) X4 Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire Color	Circuit	Function
1	0.8 RD/WH	2740	Battery Positive Voltage
2	0.8 RD/WH	3040	Battery Positive Voltage
3	0.8 RD/WH	2940	Battery Positive Voltage
4	0.8 RD/WH	2240	Battery Positive Voltage
5	0.5 D-BU/WH	1315	Right Front Turn Signal Lamp Control (PPV or 5W4)
5	0.8 D-BU/WH	1315	Right Front Turn Signal Lamp Control
6	-	-	Not Used
7	0.35 YE	196	Windshield Wiper Motor Park Switch Signal
8	-	-	Not Used
9	0.5 BK/WH	451	Ground
9	0.5 BK/WH	451	Ground (HP2)
10	0.35 RD/WH	2840	Battery Positive Voltage
11	0.35 D-GN/WH	1317	Fog Lamp Relay Control (T96)
12	0.35 YE	5187	Right Trailer Turn Signal Lamp
13	0.35 OG	5186	Left Trailer Turn Signal Lamp
14	0.35 L-GN	482	Outside Moisture Sensor Signal 2 (CE1)
15	0.5 OG	2268	Windshield Washer Relay Control
16	0.35 TN/WH	1969	Headlamp High Beam Relay Control
17	0.35 PK/BK	109	Hood Ajar Switch Signal
18	0.35 TN	481	Outside Moisture Sensor Signal 1 (CE1)
19	0.35 D-BU	5985	Accessory Wakeup Serial Data
19	0.35 D-BU	5985	Accessory Wakeup Serial Data (HP2)
20	-	-	Not Used
21	0.35 YE	5199	Run/Crank Relay Coil Control
22	-	-	Not Used
23	0.35 L-GN/BK	592	DRL Relay Control
24-25	-	-	Not Used

Connector Part Information

OEM: 15482792
Service: 88988841
Description: 25-Way F HIT Series (BK)

Terminal Part Information

Pins: 1-5
Terminal/Tray: SNAC-A061T-M2.8/20
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 12094429/J-35616-4A (PU)

Pins: 6-25
Terminal/Tray: SNAC3-A021T-M0.64/20
Core/Insulation Crimp: J/J
Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)