Body Control Module (BCM) C1

WARNING: This page is about a different car, the 2007 Buick LaCrosse and 2007 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: BCM C1 & C2 Connector End View

Courtesy of GENERAL MOTORS CORP.

Connector Part Information

OEM: 15448125
Service: 88956490
Description: 52-Way F (BK)

Terminal Part Information

Pins: 32
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Pins: 1- 4, 6-16, 21-31, 34- 38, 40, 17, 19, 20, 33, 39
Terminal/Tray: 638551-1/16
Core/Insulation Crimp: Pins 1-4, 6-16, 21-31, 34-38, 40 - J/J
Core/Insulation Crimp: Pins 17, 19, 20, 33, 39 - K/K
Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)

Pins: 41-52
Terminal/Tray: 1326030-6/17
Core/Insulation Crimp: Pins 41, 42, 47 - E/2
Core/Insulation Crimp: Pins 43, 44, 46, 48-52 - E/C
Release Tool/Test Probe: 12094429/J-35616-4A (PU)

BCM C1 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	BK	860	Front Windshield Wiper Switch High Signal
2	WH	1459	Security System Sensor Supply Voltage
3	PK	1439	Ignition 1 Voltage
4	BK	28	Horn Relay Control
5	-	-	Not Used
6	BK	707	RAP Relay Control
7	BK/WH	1969	Headlamp High Beam Relay Control
8	D-GN/WH	1317	Fog Lamp Relay Control (T96)
9	PK/WH	1970	Headlamp Module Voltage Supply
10	WH	1080	Park Lamp Relay Control
11	YE	749	Security Indicator Control
12	GY	91	Wiper Relay Control
13	YE	196	Windshield Wiper Motor Park Switch Signal
14	BK	1835	Security System Sensor Low Reference
15	L-GN/BK	1137	DRL Ambient Light Sensor Signal
16	L-GN	526	Stop Lamp Switch Signal
17	BK	1550	Ground
18	-	-	Not Used
19	BK/WH	151	Ground
20	BK	1650	Ground
21	YE	5	Crank Voltage
22	PK	1239	Ignition 1 Voltage
23	BN	1141	Ignition 3 Voltage
24	TN	185	Low Washer Fluid Indicator Signal
25	WH/BK	644	12-Volt Reference
26	PK/BK	109	Hood Ajar Switch Signal (AP3/AP8)
27	GY	598	10-Volt Reference
28	BK	552	Low Reference
29	BN/WH	230	I/P Dimming Return
30	PK	1444	I/P Dimming Control
31	RD/WH	812	I/P Dimming Voltage Reference
32	BK	1576	Rear Compartment Lid Release Switch
33	BN	5077	Low Reference
34	BN/WH	1571	Traction Control Switch Signal (U68, UH8)
35	GY/BK	1598	I/P Dimming Return
36	PK/BK	1597	Courtesy Lamps Switch On Signal
37	BK/WH	1455	Keyless Entry Program Enable Signal
38	L-GN	1037	BCM Class 2 Serial Data
39	WH	17	Stop Lamp Switch Signal
40	L-GN	80	Key In Ignition Switch Signal
41	L-BU/WH	1314	Left Front Turn Signal Lamp Supply Voltage
42	D-BU/WH	1315	Right Front Turn Signal Lamp Supply Voltage
43	GY/BK	690	Courtesy Lamp Supply Voltage
44	OG	1732	Inadvertent Power Courtesy Lamp
45	-	-	Not Used
46	OG	340	Battery Positive Voltage
47	RD	228	Windshield Washer Pump Control
48	GY	8	Instrument Panel Lamp Supply Voltage
49	D-GN/WH	1135	A/T Shift Lock Control Solenoid Supply Voltage
50	OG	240	Battery Positive Voltage
51	OG	2440	Battery Positive Voltage
52	OG	1240	Battery Positive Voltage