GM Service Manual Online
For 1990-2009 cars only
Table 1: Front Axle Actuator
Table 2: Transfer Case Shift Control Module - C1
Table 3: Transfer Case Shift Control Module - C2
Table 4: Transfer Case Shift Control Switch - C1
Table 5: Transfer Case Shift Control Switch - C2
Table 6: Transfer Case - C1 (Encoder Motor)
Table 7: Transfer Case - C2 (Encoder Motor)

Front Axle Actuator


Object Number: 655795  Size: CH

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

E

BLK

2150

Ground

Transfer Case Shift Control Module - C1


Object Number: 73221  Size: CH

Connector Part Information

    • 12052107
    • 32-Way F Micro-Pack 100 Series (ORN)

Pin

Wire Color

Circuit No.

Function

E1

TAN

1569

Lock Solenoid Control

E2

--

--

Not Used

E3

PNK

1561

AWD Indicator Control

E4

LT GRN/BLK

1563

2 'HI' Indicator - Control

E5

BRN/WHT

1555

Channel P Encoder - Signal

E6

RED/WHT

1556

Channel C Encoder - Signal

E7

YEL/BLK

1558

Channel B Encoder - Signal

E8

DK BLU/WHT

1557

Channel A Encoder - Signal

E9

DK GRN/WHT

1133

ATC Class 2 Serial Data

E10

BRN

241

Ignition 3 Voltage

E11

--

--

Not Used

E12

YEL

400

Signal High - Front

E13

PPL

401

Signal Low - Front

E14

BLK/WHT

1695

Axle Switch Signal

E15

--

--

Not Used

E16

BLK

1850

Ground

F1

PPL/WHT

1565

4 'LO' Indicator - Control

F2

TAN/BLK

1566

4 'HI' Indicator - Control

F3

BRN

1560

Neutral Indicator Control

F4

LT BLU

1296

Axle Actuator - Control

F5

LT BLU

2221

Signal High - Rear

F6

DK GRN

2222

Signal Low - Rear

F7

GRY/BLK

1694

4WD Low Signal

F8-F11

--

--

Not Used

F12

BLK/WHT

1554

Encoder Signal Ground

F13

LT GRN/BLK

431

8 Volt Reference

F14

LT GRN/BLK

431

8 Volt Reference

F15

--

--

Not Used

F16

LT BLU

1693

Switch Signal

Transfer Case Shift Control Module - C2


Object Number: 62450  Size: CH

Connector Part Information

    • 12052856
    • 4-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1552

Motor Control A

B

RED

1553

Motor Control B

C

BLK

2150

Ground

D

ORN

1640

Battery Positive Voltage

Transfer Case Shift Control Switch - C1


Object Number: 130635  Size: CH

Connector Part Information

    • 12045813
    • 4-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

431

8 Volt Reference

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 Shift Control Switch - C2


Object Number: 39746  Size: CH

Connector Part Information

    • 12064862
    • 8-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1850

Ground

B

PNK

1561

AWD Indicator Control

C

BRN

1560

Neutral Indicator Control

D

--

--

Not Used

E

PPL/WHT

1382

LED Dimming Signal

F

GRY

8

Instrument Panel Lamp Supply Voltage - 1

G

PNK

39

Ignition 1 Voltage

H

LT BLU

1693

Switch Signal

Transfer Case - C1 (Encoder Motor)


Object Number: 684797  Size: CH

Connector Part Information

    • 12059183
    • 2-Way F Metri-Pack 280 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1552

Motor Control A

B

RED

1553

Motor Control B

Transfer Case - C2 (Encoder Motor)


Object Number: 697039  Size: CH

Connector Part Information

    • 12052848
    • 6-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

1554

Encoder Signal Ground

B

DK BLU/WHT

1557

Channel A Encoder - Signal

C

RED/WHT

1556

Channel C Encoder - Signal

D

YEL/BLK

1558

Channel B Encoder - Signal

E

LT GRN/BLK

431

8 Volt Reference

F

BRN/WHT

1555

Channel P Encoder - Signal