Body Control Module (BCM), C1 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12084945 16-Way F Micro-Pack 100 Series (GRY)
Pin	Wire Color	Circuit No.	Function
A1	PNK/WHT	1970	Headlamp Low Beam Relay Control
A2	DK GRN/ WHT	1317	Fog Lamp Relay Control
A3	GRY/BLK	308	Park Lamp Switch On Signal
A4	BLK	28	Horn Relay Control
A5-A7	-	-	Not Used
A8	PPL	1600	Ignition 0 Voltage
B1	WHT	1080	Park Lamp Relay Control
B2	-	-	Not Used
B3	LT BLU	1344	Trunk Release Relay Control
B4	-	-	Not Used
B5	LT GRN/ BLK	592	DRL Relay Control
B6	-	-	Not Used
B7	LT GRN/ BLK	394	Driver Door Ajar Switch Signal
B8	BRN	341	Ignition 3 Voltage