Transfer Case Control Connectors

Front Axle Actuator

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15324541 4-Way F Metri-Pack 150 Series Sealed (BLU)
Pin	Wire Color	Circuit No.	Function
A	BLK/WHT	1695	Axle Switch Signal
B	LT BLU	1296	Axle Actuator - Control
C	BRN	241	Ignition 3 Voltage
D	-	-	Not Used
E	BLK	2150	Ground

Propshaft Speed Sensor - Front

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15336024 2-Way F GT150 Sealed (BLK)
Pin	Wire Color	Circuit No.	Function
1	YEL	400	Signal High - Front
2	PPL	401	Signal Low - Front

Propshaft Speed Sensor - Rear

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15336024 2-Way F GT150 Sealed (BLK)
Pin	Wire Color	Circuit No.	Function
A	LT BLU	2221	Signal High - Rear
B	DK GRN	2222	Signal Low - Rear

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

Transfer Case Shift Control Switch - C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064862 8-Way F Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK	1050	Ground
B	PNK	1561	AWD Indicator Control
C	BRN	1560	Neutral Indicator Control
D	-	-	Not Used
E	PPL/WHT	1382	LED Dimming Supply
F	BRN/WHT	230	Instrument Panel Lamps Dimming Control
G	BRN	241	Ignition 3 Voltage
H	GRY	596	5-Volt Reference

Transfer Case Shift Control Switch - C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12045813 4-Way F Metri-Pack 150 Series (NAT)
Pin	Wire Color	Circuit No.	Function
A	LT BLU	1693	Switch Signal
B	LT GRN/ BLK	1563	2 HI Indicator Control
C	PPL/WHT	1565	4 LO Indicator Control
D	TAN/BLK	1566	4 HI Indicator Control

Transfer Case - Encoder Motor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15326906 10-Way F GT280 Series Sealed (BLK)
Pin	Wire Color	Circuit No.	Function
A	LT GRN/ BLK	431	5-Volt Reference
B	BRN/WHT	1555	Encoder Signal
C	BLK/WHT	1554	Encoder Low Reference
D	BLK	1552	Motor Control A
E	RED	1553	Motor Control B
F	ORN	1640	Battery Positive Voltage
G	TAN	1569	Lock Solenoid Control
H	-	-	Not Used