Body Control Module (BCM) Connector End View - C4

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110206 24-Way F Micro-Pack 100 Series (LT BLU)
Pin	Wire Color	Circuit No.	Function
A1	LT GRN	80	Key In Ignition Switch Signal
A2	YEL	307	Headlamp Switch Flash to Pass Signal
A3	WHT	530	Off/Run/Crank Voltage
A4	PNK	39	Ignition 1 Voltage
A5-A6	-	-	Not Used
A7	LT BLU	1134	Park Brake Switch Signal
A8	GRY	1524	Backup Lamp Signal
A9-A11	-	-	Not Used
A12	WHT	103	Headlamp Switch Headlamps On Signal
B1-B2	-	-	Not Used
B3	YEL	43	Accessory Voltage
B4-B5	-	-	Not Used
B6	GRY/BLK	2226	Instrument Panel Lamps Dimmer Switch Low Reference
B7	BLK	279	Ambient Light Sensor Low Reference
B8	-	-	Not Used
B9	DK BLU/WHT	1495	Courtesy Lamps On Signal
B10-B12	-	-	Not Used