GM Service Manual Online
For 1990-2009 cars only
Table 1: Transfer Case Shift Control Module Connector C1
Table 2: Transfer Case Shift Control Module Connector C2
Table 3: Transfer Case Encoder Motor Connector
Table 4: Transfer Case Front Propshaft Speed Sensor Connector
Table 5: Transfer Case Rear Propshaft Speed Sensor Connector

Transfer Case Shift Control Module Connector C1


Object Number: 581541  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

C1-C8

--

--

Not Used

C9

DK GRN/ WHT

1133

Serial Data Signal - Class B - 10400 Baud - Diagnostic to ATC

C10

BRN

241

Fuse Output - Ignition 3

C11

--

--

Not Used

C12

YEL

400

Vehicle Speed Sensor Signal

C13

PPL

401

Vehicle Speed Sensor Return

C14-C15

--

--

Not Used

C16

BLK/WHT

451

Engine Control Module Ground

D1-D4

--

--

Not Used

D5

LT BLU

2221

Vehicle Speed Sensor Signal

D6

DK GRN

2222

Rear Speed Sensor Return

D7-D16

--

--

Not Used

Transfer Case Shift Control Module Connector 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

Transfer Case Motor Feed - Clockwise

B

RED

1553

Transfer Case Motor Feed - Counterclockwise

C

BLK

1050

Ground

D

ORN

1640

Fuse Output - Battery

Transfer Case Encoder Motor Connector


Object Number: 258847  Size: CH

Connector Part Information

    • 12077900
    • 2 Way F Metri Pack 280 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1552

Transfer Case Motor Feed - Clockwise

B

RED

1553

Transfer Case Motor Feed - Counterclockwise

Transfer Case Front Propshaft Speed Sensor Connector


Object Number: 232831  Size: CH

Connector Part Information

    • 12162194
    • 2 Way F Metri Pack 150.2 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

400

Vehicle Speed Sensor Signal

B

PPL

401

Vehicle Speed Sensor Return

Transfer Case Rear Propshaft Speed Sensor Connector


Object Number: 232831  Size: CH

Connector Part Information

    • 12162194
    • 2 Way F Metri Pack 150.2 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

2221

Vehicle Speed Sensor Signal

B

DK GRN

2222

Vehicle Speed Sensor Return