Transfer Case Shift Control Module Connector End Views

Transfer Case Shift Control Module - C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12084944 16-Way F Micro-Pack 100 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A1	DK GRN/ WHT	1133	ATC Class 2 Serial Data
A2	LT BLU	1296	AXLE Actuator - Control
A3	PNK	1561	AWD Indicator Control
A4	PPL/WHT	1565	4 LO Indicator Control
A5	TAN/BLK	1566	4 HI Indicator Control
A6	LT BLU	1693	Switch Signal
A7	BLK/WHT	1554	Encoder Low Reference
A8	BLK/WHT	1851	Ground
B1	-	-	Not Used
B2	TAN	1569	Lock Solenoid Control
B3	LT GRN/ BLK	1563	2 HI Indicator Control
B4	BRN	1560	Neutral Indicator Control
B5	GRY/BLK	1694	4WD Low Signal
B6	BRN/WHT	1555	Encoder Signal
B7-B8	-	-	Not Used

Transfer Case Shift Control Module - C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12084945 16-Way F Micro-Pack 100 Series (GRY)
Pin	Wire Color	Circuit No.	Function
A1	PPL	401	Signal Low - Front
A2	YEL	400	Signal High - Front
A3-A7	-	-	Not Used
A8	LT GRN/ BLK	431	8-Volt Reference
B1	LT BLU	2221	Signal High - Rear
B2	DK GRN	2222	Signal Low - Rear
B3-B5	-	-	Not Used
B6	BLK/WHT	1695	Axle Switch Signal
B7	-	-	Not Used
B8	GRY	596	5-Volt Reference

Transfer Case Shift Control Module - C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052856 4-Way F Metri-Pack 280 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK	2150	Ground
B	ORN	1640	Battery Positive Voltage
C	BLK	1552	Motor Control A
D	RED	1553	Motor Control B