Body Control System Connectors

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

Body Control Module (BCM) C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12191375 16-Way F Micro-Pack 100 Series (PPL)
Pin	Wire Color	Circuit No.	Function
A1-A2	-	-	Not Used
A3	WHT	194	Door Unlock Control
A4	LT BLU	195	Door Lock Control
A5	BLK/WHT	56	Trunk Release Motor-Control or Supply Voltage
A6	TAN	694	Driver Door Lock Actuator Unlock
A7	LT GRN/BLK	394	Driver Door Jamb Switch Signal
A8	LT BLU	395	Passenger Door Jamb Switch Signal
B1-B7	-	-	Not Used
B8	PPL	1807	Class 2 Serial Data

Body Control Module (BCM) C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110206 24-Way F Micro-Pack 100 Series (LT BLU)
Pin	Wire Color	Circuit No.	Function
A1	BRN	9	Park Lamp Supply Voltage
A2	-	-	Not Used
A3	YEL	43	Accessory Voltage
A4	ORN/BLK	737	Rear Compartment Lamp Control
A5	BRN/WHT	230	Instrument Panel Lamps Dimming Control
A6	PNK	1200	Headlamp High Beam Signal
A7	YEL	1836	Security System Sensor Signal
A8-A9	-	-	Not Used
A10	ORN	1732	Courtesy Lamps Supply Voltage
A11	ORN	1440	Battery Positive Voltage
A12	ORN	340	Battery Positive Voltage
B1	BLK/WHT	451	Ground
B2	LT BLU	1134	Park Brake Switch Signal
B3	-	-	Not Used
B4	BLK/WHT	1576	Trunk Release Switch Signal
B5	-	-	Not Used
B6	DK BLU	1201	Headlamp Low Beam Signal
B7	PPL	1807	Class 2 Serial Data
B8	PPL	1807	Class 2 Serial Data
B9	PPL	1807	Class 2 Serial Data
B10	ORN	1940	Battery Positive Voltage
B11	BLK/WHT	251	Ground
B12	-	-	Not Used

Body Control Module (BCM) C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12160778 24-Way F Micro-Pack 100 Series (BRN)
Pin	Wire Color	Circuit No.	Function
A1	WHT	156	Courtesy Lamp Low Control
A2	GRY	8	Instrument Panel Lamp Supply Voltage
A3	-	-	Not Used
A4	LT GRN/BLK	592	DRL Relay Control
A5	BRN	323	Shift Lock Actuator Feed
A6-A8	-	-	Not Used
A9	BRN/WHT	1571	Traction Control Switch Signal (Pontiac Only)
A10	LT GRN	66	A/C Request Signal
A11	ORN	192	Front Fog Lamp Switch Signal
A12	PNK	39	Ignition 1 Voltage
B1	PPL	719	Low Reference
B2	BLK/WHT	151	Ground
B3	BLK	1835	Security System Sensor Low Reference
B4	-	-	Not Used
B5	DK GRN/WHT	1317	Fog Lamp Relay Control
B6	-	-	Not Used
B7	BLK	28	Horn Relay Control
B8	YEL/BLK	68	Low Coolant Level Indicator Control
B9	GRY	728	Security Indicator Control
B10	WHT	1459	Security System Sensor Supply Voltage
B11	PNK	849	Brake Fluid Level Sensor Signal
B12	LT GRN	80	Key In Ignition Switch Signal