Body Control Module (BCM) C4

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Body Control Module (BCM) C4 Connector End View

Courtesy of GENERAL MOTORS CORP.

Computer/Integrating Systems Connector End Views

Connector Part Information

OEM: HITPB-25-D-K
Service: See Catalog
Description: 25-Way F (BK)

Terminal Part Information

Pins: 1, 2, 3, 4, 5
Terminal/Tray: SNAC-A061T-M2.8/20
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 12094429/J-35616-4A (PU)

Pins: 7, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 24, 25
Terminal/Tray: SNAC3-A021T-M0.64/20
Core/Insulation Crimp: J/J
Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Body Control Module (BCM) C4

Pin	Wire Color	Circuit No.	Function
1	RD/YE	340	Battery Positive Voltage
2	TN/PK	5040	Battery Positive Voltage (Early Production)
2	TN/OG	5040	Battery Positive Voltage (Late Production)
3	RD/GN	440	Battery Positive Voltage
4	RD/WH	1240	Battery Positive Voltage (Early Production)
4	RD/YE	1240	Battery Positive Voltage (Late Production)
5	D-BU/WH	1315	Right Front Turn Signal Lamp Supply Voltage
6	-	-	Not Used
7	YE/PU	196	Windshield Wiper Motor Park Switch Signal
8	-	-	Not Used
9	BK	50	Ground
10	TN/OG	3640	Battery Positive Voltage
11	D-GN/WH	1317	Fog Lamp Relay Control
12-13	-	-	Not Used
14	L-GN	482	Outside Moisture Sensor Signal 2
15	OG/GY	227	Windshield Washer Relay Control
16	TN/WH	1969	Headlamp High Beam Relay Control
17	PK/BK	109	Hood Ajar Switch Signal
18	TN/YE	481	Outside Moisture Sensor Signal 1
19	D-BU/WH	5985	Accessory Wake up Serial Data
20	D-BU	6561	Right Cornering Lamp Relay Control
21	PK	1439	Run/Crank Ignition 1 Voltage
22	-	-	Not Used
23	PU	544	DRL Relay Control
24	BN	6560	Left Cornering Lamp Relay Control
25	-	-	Not Used