Lamp Control Module (LCM) C2 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110088 24-Way F Metri-Pack 100 Series (GRY)
Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	WHT	629	High Beam Indicator Control
A3-A4	-	-	Not Used
A5	WHT	278	Ambient Light Sensor Signal
A6	PPL	1783	Twilight Sentinel Delay Signal
A7	PNK	39	Ignition 1 Voltage
A8	LT GRN	275	Park Neutral Position Switch Park Signal
A9	PPL	524	Headlamp Dimmer Switch High Beam Signal
A10-A12	-	-	Not Used
B1	-	-	Not Used
B2	YEL	390	Instrument Panel Lamp Supply Voltage - 3
B3	PPL/WHT	549	Headlamp Switch Headlamps Off Signal
B4	BLK/WHT	351	Ground
B5	BLK/WHT	351	Ground
B6-B8	-	-	Not Used
B9	YEL	307	Headlamp Switch Flash to Pass Signal
B10	WHT	103	Headlamp Switch Headlamps On Signal
B11	GRY/BLK	308	Park Lamp Switch Signal (Park Lamps ON)
B12	BLK/WHT	624	Headlamp Alarm Signal