Cruise Control Switch Connector End View (w/L66)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		50-57-9405 5-Way F C Grid SL 70066G Series (BK)
Pin	Wire Color	Circuit Number	Function
1	PK	1339	Ignition 1 Voltage
2	BK	-	Ground
3	GY	397	Cruise On/Off Switch Signal
4	D-BU	84	Cruise Set/Coast Switch Signal
5	GY/BK	87	Cruise Resume/Accel Switch Signal