Body Control Module (BCM) X4

WARNING: This page is about a different car, the 2008 Cadillac CTS. 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	Circuit	Function
1	0.8 OG	1540	Battery Positive Voltage
2	0.8 OG	1340	Battery Positive Voltage
3	1 OG	1640	Battery Positive Voltage
4	0.8 OG	1440	Battery Positive Voltage
5	0.8 D-BU/WH	1315	Right Front Turn Signal Lamp Supply Voltage/Right Turn Signal Indicator Lamp Supply Voltage
6	0.35 D-GN	6134	Local Interconnect Network 3
7	0.35 YE	196	Windshield Wiper Motor Park Switch Signal
8	-	-	Not Used
9	0.35 BK/WH	451	Ground
10	0.35 OG	140	Battery Positive Voltage
11	0.35 D-GN/WH	1317	Fog Lamp Relay Control/Front Fog Lamp Relay and Indicator Control (T96)
12-13	-	-	Not Used
14	0.35 L-GN	482	Outside Moisture Sensor Signal 2 (CE1)
15	0.35 OG	2268	Windshield Washer Relay Control
16	0.35 BK/WH	1969	Headlamp Relay Control/Headlamp High Beam Relay Control
17	0.35 PU	5531	Hood Closed Switch Signal
18	0.35 BK	481	Outside Moisture Sensor Signal 1 (CE1)
19	0.35 D-BU	5985	Accessory Wakeup Serial Data
20	0.35 YE	1977	Rear Fog Lamp Relay Control/Rear Fog Lamp Relay and Indicator Control (T79)
21	0.35 PK	139	Ignition 1 Voltage
22	-	-	Not Used
23	0.35 D-BU	545	DRL Supply Voltage (TT6/TT7/TT8)
24	-	-	Not Used
25	0.35 WH	1080	Park Lamp Relay Control (T90)

Connector Part Information

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

Terminal Part Information

Pins: 6, 7, 9-11, 14-21, 23, 25
Terminal/Tray: SNAC3-A021T-M0.64/20
Core/Insulation Crimp: J/J
Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)

Pins: 1-5
Terminal/Tray: SNAC-A061T-M2.8/20
Core/Insulation Crimp: Pins 1, 2, 4, 5 - E/A
Core/Insulation Crimp: Pins 3 - C/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)