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 Encoder Motor - C1
Table 7: Transfer Case Encoder Motor - C2

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: 581541  Size: CH

Connector Part Information

    • 12045471
    • 32-Way F Micro-Pack 100 Series (GRN)

Pin

Wire Color

Circuit No.

Function

C1-C3

--

--

Not Used

C4

LT GRN/BLK

1563

2 'HI' Indicator - Control

C5

BRN/WHT

1555

Channel P Encoder - Signal

C6

RED/WHT

1556

Channel C Encoder - Signal

C7

YEL/BLK

1558

Channel B Encoder - Signal

C8

DK

BLU/WHT

1557

Channel A Encoder - Signal

C9

DK

GRN/WHT

1133

ATC Class 2 Serial Data

C10

BRN

241

Ignition 3 Voltage

C11-C13

--

--

Not Used

C14

BLK/WHT

1695

Axle Switch Signal

C15

--

--

Not Used

C16

BLK

1850

Ground

D1

PPL/WHT

1565

4 'LO' Indicator - Control

D2

TAN/BLK

1566

4 'HI' Indicator - Control

D3

BRN

1560

Neutral Indicator Control

D4

LT BLU

1296

Axle Actuator - Control

D5-D6

--

--

Not Used

D7

GRY/BLK

1694

4WD Low Signal

D8-D11

--

--

Not Used

D12

BLK/WHT

1554

Encoder Signal Ground

D13

LT GRN/BLK

431

8 Volt Reference

D14

LT GRN/BLK

431

8 Volt Reference

D15

--

--

Not Used

D16

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

TAN/BLK

1566

4 'HI' Indicator - Control

D

PPL/WHT

1565

4 'LO' 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

--

--

Not Used

C

BRN

1560

Neutral Indicator Control

D

--

--

Not Used

E

PPL/WHT

1382

LED Dimming Signal

F

GRY

8

Instrument Panel Lamp Supply Voltage

G

PNK

39

Ignition 1 Voltage

H

LT BLU

1693

Switch Signal

Transfer Case Encoder Motor - C1


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 Encoder Motor - C2


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