Body Control System Connector End Views

WARNING: This page is about a different car, the 2003 Chevrolet SSR. However, it is still accessible from the selected car via links, so may be relevant.

Body Control Module (BCM) C1 Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12177194 6-Way F Metri-Pack 150 Series (WH)
Pin	Wire Color	Circuit No.	Function
A	BN/WH	230	Instrument Panel Lamp Dimming Control
B	-	-	Not Used
C	OG	4040	Battery Positive Voltage
D	OG	1732	Electronic Control Unit 12-Volt Reference
E	BN/WH	230	Instrument Panel Lamp Dimming Control
F	OG	2240	Battery Positive Voltage

Body Control Module (BCM) C2 Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110088 24-Way F Micro-Pack 100 Series (L-GY)
Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	WH	2283	Rear Wiper/Washer Switch Supply Voltage
A3	TN/BK	254	Door Unlock Control
A4	PK/WH	1970	Headlamp Low Beam Relay Control
A5	D-GN/WH	1317	Fog Lamp Relay Control
A6	GY/BK	255	Door Lock Control
A7	L-GN	1391	Left Front Door Lock Relay Control
A8-A10	-	-	Not Used
A11	RD/WH	812	12-Volt Reference
A12	OG	1140	Battery Positive Voltage
B1	BK/WH	1969	Headlamp High Beam Relay Control
B2	WH	1080	Park Lamp Relay Control
B3	-	-	Not Used
B4	L-GN/BK	592	DRL Relay Control
B5	-	-	Not Used
B6	BK/WH	751	Signal Ground
B7	BK	1835	Security System Sensor Low Reference
B8	-	-	Not Used
B9	BK	28	Horn Relay Control
B10	-	-	Not Used
B11	GY	705	5-Volt Reference
B12	L-GN	1037	BCM Class 2 Serial Data

Body Control Module (BCM) C3 Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12160778 24-Way F Micro-Pack 100 Series (BN)
Pin	Wire Color	Circuit No.	Function
A1-A3	-	-	Not Used
A4	WH	278	Ambient Light Sensor Signal
A5	-	-	Not Used
A6	YE	1836	Security System Sensor Signal
A7	L-GN	1011	Remote Radio Control Signal
A8	L-BU	1134	Park Brake Switch Signal
A9	OG	192	Front Fog Lamp Switch Signal
A10	D-GN	113	Windshield Wiper Switch On Signal
A11-A12	-	-	Not Used
B1	YE	710	Class 2 Serial Data Secondary
B2	GY/BK	308	Park Lamp Switch On Signal
B3-B5	-	-	Not Used
B6	BK/WH	751	Signal Ground
B7	-	-	Not Used
B8	OG/BK	2090	Combined Vehicle Inertial Sensor Low Reference
B9	L-GN	11	Headlamp High Beam Supply Voltage
B10-B12	-	-	Not Used

Body Control Module (BCM) C4 Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110206 24-Way F Micro-Pack 100 Series (L-BU)
Pin	Wire Color	Circuit No.	Function
A1	L-GN	80	Key In Ignition Switch Signal
A2	YE	307	Headlamp Switch Flash To Pass Signal
A3	PK	1390	Off/Run/Crank Voltage
A4	PK	39	Run/Crank Ignition 1 Voltage
A5	BK/WH	746	Right Front Door Ajar Switch Signal
A6	-	-	Not Used
A7	L-BU	1134	Park Brake Switch Signal
A8-A11	-	-	Not Used
A12	WH	103	Headlamp Switch On Signal
B1-B2	-	-	Not Used
B3	YE	343	Accessory Voltage
B4	GY/BK	745	Left Front Door Ajar Switch Signal
B5	L-BU	195	Door Lock Control
B6	GY/BK	2226	Vehicle Speed Sensor Low Reference
B7	BK	279	Ambient Light Sensor Low Reference
B8-B9	-	-	Not Used
B10	WH	194	Door Unlock Control
B11-B12	-	-	Not Used

Body Control Module (BCM) C5 Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12177195 6-Way F Metri-Pack 150 Series (BK)
Pin	Wire Color	Circuit No.	Function
A-C	-	-	Not Used
D	OG	2140	Battery Positive Voltage
E	GY/BK	690	Courtesy Lamp Relay Control
F	L-GN	24	Backup Lamp Supply Voltage