Vehicle Communication Interface Module (VCIM) C2 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		917975-1 12-Way F (WHT)
Pin	Wire Color	Circuit No.	Function
1	BRN/WHT	658	Cellular Telephone Voice Signal
2	LT BLU	659	Cellular Telephone Voice Low Reference
3-4	-	-	Not Used
5	PPL	1807	Class 2 Serial Data
6-7	-	-	Not Used
8	BARE	814	Drain Wire
9	GRY	655	Cellular Telephone Microphone Signal
10	BARE	814	Drain Wire
11-12	-	-	Not Used