Cellular Communication Connector End Views

Inside Rearview Mirror (ISRVM)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		917981-2 16-Way M Amp .040/.070 Hybrid (BK)
Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	BARE	1782	Drain Wire
3-4	-	-	Not Used
5	GY	1690	Automatic Day/Night Mirror Signal
6-7	-	-	Not Used
8	BK/WH	1051	Ground
9	L-GN	24	Backup Lamp Supply Voltage
10	GY	655	Cellular Microphone Signal (UE1)
11	PU	679	Keypad Signal (UE1)
12	BN	1941	Keypad Supply Voltage
13	PK	1339	Ignition 1 Voltage
14	GY/BK	1798	Keypad Green LED Signal (UE1)
15	PU	1156	Keypad Red LED Signal (UE1)
16	PK	1691	Automatic Day/Night Mirror Low Reference

Vehicle Communication Interface Module (VCIM), C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		917981-1 16-Way M MKII Hybrid (WH)
Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	PU	1156	Keypad Red LED Signal
3	GY/BK	1798	Keypad Green LED Signal
4-5	-	-	Not Used
6	BN	1941	Keypad Supply Voltage
7	BK/WH	851	Ground
8-10	-	-	Not Used
11	PU	679	Keypad Signal
12-14	-	-	Not Used
15	RD/WH	2240	Battery Positive Voltage
16	-	-	Not Used

Vehicle Communication Interface Module (VCIM), C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		917975-1 12-Way M MKII Hybrid (WH)
Pin	Wire Color	Circuit No.	Function
1	D-BU	658	Cellular Telephone Voice Signal
2	L-BU/BK	659	Cellular Telephone Voice Low Reference
3-5	-	-	Not Used
6	PU	1807	Class 2 Serial Data
7	-	-	Not Used
8	BARE	814	Shield
9	GY	655	Cellular Microphone Signal
10	BARE	1782	Drain Wire
11-12	-	-	Not Used

Vehicle Communication Interface Module (VCIM), C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		917983-2 16-Way M MKII Hybrid (BK)
Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	PK	5149	Voice In Signal
3	-	-	Not Used
4	PK/BK	5152	Return Voice In Signal
5	BARE	1792	Drain Wire
6-16	-	-	Not Used