Body Control Module - Connector End View C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110088 24-Way F Micro-Pack 100 Series (GY)
Pin	Wire Color	Circuit No.	Function
A1	BK	1550	Ground
A2-A3	-	-	Not Used
A4	YE/BK	1138	Ambient Light Sensor Low Reference
A5	PK	1444	5-Volt Reference
A6	L- GN/ BK	1137	Ambient Light Sensor Signal
A7	BN/WH	230	Instrument Panel Lamps Dimming Control
A8	L- GN/ BK	311	High Beam Signal
A9	BK/WH	1455	Keyless Entry Program Enable Signal
A10	L- GN	1037	BCM Class 2 Serial Data
A11	BK	28	Horn Relay Control
A12	L- GN/ BK	592	DRL Relay Control
B1	GY/BK	1796	Low Reference
B2	PK	739	Ignition 1 Voltage
B3	BN	9	Park Lamp Supply Voltage
B4	YE	749	Security Indicator Control (UA6)
B5-B6	-	-	Not Used
B7	OG	3240	Battery Positive Voltage
B8	L- BU	910	Headlamp Relay Control
B9	D- GN/ WH	762	A/C Request Signal (C60)
B10	-	-	Not Used
B11	TN/WH	816	A/T Shift Lock Solenoid Control
B12	D- GN/ WH	1317	Fog Lamp Relay Control