Headlamp Switch Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15324433 18-Way F SOC (GN)
Pin	Wire Color	Circuit No.	Function
1	PK	1444	5-Volt Reference
2	PK/BK	1597	Interior Lamp Switch On Signal
3	PU	328	Interior Lamp Defeat Switch Signal
4	BK	1550	Ground
5-6	-	-	Not Used
7	OG	192	Fog Lamp Switch Signal
8	L-BU	13	Headlamp Switch Park Lamps Signal
9	BN/WH	230	Instrument Panel Lamps Dimming Control
10	GY/BK	1798	Low Reference
11	-	-	Not Used
12	GY	8	Instrument Panel Lamp Supply Voltage
13	PU	34	Fog Lamps Supply Voltage
14-15	-	-	Not Used
16	BK	1450	Ground
17	YE	10	Headlamp Switch Signal
18	-	-	Not Used