Body Control Module (BCM) Connector End Views

Body Control Module (BCM) C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		OEM: 12084945 Service: 12084945 16-Way F Micro-Pack 100 Series (GY)
Pin	Wire Color	Circuit No.	Function
A1	L-GN	1391	Driver Door Lock Relay Control
A2	L-BU	195	Door Lock Relay Control
A3	WH	194	Door Unlock Relay Control
A4	PU/WH	5981	PRNDL A Signal
A5	PK/BK	5982	PRNDL B Signal
A6	OG/BK	5983	PRNDL C Signal
A7	L-GN/WH	5984	PRNDL P Signal
A8	YE	1836	Security System Sensor Signal
B1	D-BU	1201	Headlamp Low Beam Signal
B2	GY	731	Evaporator Temperature Sensor Signal
B3	PU	719	Evaporator Temperature Sensor Low Reference
B4	YE/BK	1138	DRL Ambient Light Sensor Low Reference
B5	L-GN/BK	1137	DRL Ambient Light Sensor Signal
B6	BN/WH	230	Instrument Panel Lamp Dimming Control
B7	TN	470	Low Reference
B8	OG/BK	1057	Low Reference

Body Control Module (BCM) C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		OEM: 12110088 Service: See Catalog 24-Way F Micro-Pack 100 Series (GY)
Pin	Wire Color	Circuit No.	Function
A1	PU	1807	Class 2 Serial Data
A2	BN	96	Windshield Wiper Switch Pulse Delay Signal
A3	D-BU	245	Passenger Door Lock Switch Unlock Supply Voltage l
A4	BN/WH	1571	Traction Control Switch Signal
A5	PK	94	Rear Window Wiper Switch Signal
A6	OG	228	Windshield Washer Pump Control
A7	PK	339	Ignition 1 Voltage
A8	L-GN	80	Key In Ignition Switch Signal
A9	-	-	Not Used
A10	TN/BK	2500	High Speed GMLAN Serial Data (+)
A11	TN	2501	High Speed GMLAN Serial Data (-)
A12	D-GN	113	Windshield Wiper Switch Signal 2
B1-B2	-	-	Not Used
B3	L-BU	74	Park Lamp Switch Signal
B4	OG	192	Fog Lamp Switch Signal (T96)
B5	TN/WH	746	Passenger Door Ajar Switch Signal
B6	YE	43	Accessory Voltage
B7	BN	9	Park Lamp Supply Voltage
B8	BN	41	Ignition 3 Voltage
B9	D-GN	392	Rear Window Washer Pump Control
B10	TN/BK	2500	High Speed GMLAN Serial Data (+)
B11	TN	2501	High Speed GMLAN Serial Data (-)
B12	GY	112	Windshield Wiper Switch Signal 1

Body Control Module (BCM) C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		OEM: 12110244 Service: 12110244 24-Way F Micro-Pack 100 Series (PK)
Pin	Wire Color	Circuit No.	Function
A1	OG/WH	812	12-Volt Reference
A2	WH	1080	Park Lamp Relay Control
A3	TN	28	Horn Relay Control
A4	TN/WH	816	A/T Shift Lock Solenoid Control
A5	WH	352	Headlamp Relay Control
A6	OG/BK	6848	Front Wiper Relay Control
A7	-	-	Not Used
A8	L-GN/BK	592	DRL Relay Control
A9	YE	317	Fog Lamp Relay Control (T96)
A10	YE	749	Security Indicator Control
A11	YE	5420	Rear Wiper Relay Control
A12	WH	193	Rear Defog Relay Control
B1	WH	156	Dome Lamp Control
B2-B3	-	-	Not Used
B4	L-BU	244	Passenger Door Lock Switch Lock Supply Voltage
B5	L-BU	1134	Park Brake Switch Signal
B6	L-GN	66	A/C Request Signal
B7	L-BU	292	Rear Defog Switch Signal
B8	GY/BK	745	Left Front Door Ajar Switch Signal
B9	PK	1200	Headlamp High Beam Signal
B10	PU	333	Brake Fluid Level Switch Signal
B11	-	-	Not Used
B12	OG/BK	744	Liftgate Ajar Switch Signal

Body Control Module (BCM) C4

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		OEM: 12110626 Service: 12110626 8-Way F Metri-Pack 280 Series, Flexlock (GY)
Pin	Wire Color	Circuit No.	Function
A	OG	1732	Courtesy Lamp Supply Voltage
B-D	-	-	Not Used
E	GY	8	I/P Lamps Dimmer Switch Signal
F	RD/WH	2540	Battery Positive Voltage
G	BK/WH	151	Ground
H	RD/WH	1640	Battery Positive Voltage