GM Service Manual Online
For 1990-2009 cars only
Table 1: Propshaft Speed Sensor -- Front
Table 2: Propshaft Speed Sensor -- Rear
Table 3: Transfer Case Encoder Motor
Table 4: Transfer Case Shift Control Module C1
Table 5: Transfer Case Shift Control Module C2
Table 6: Transfer Case Shift Control Module C3

Propshaft Speed Sensor -- Front


Object Number: 666646  Size: CH

Connector Part Information

    • 15336024
    • 2-Way F GT 150 Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

1

YEL

400

Signal High - Front

2

PPL

401

Signal Low - Front

Propshaft Speed Sensor -- Rear


Object Number: 666646  Size: CH

Connector Part Information

    • 15336024
    • 2-Way F GT 150 Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

1

LT BLU

2221

Signal High - Rear

2

DK GRN

2222

Signal Low - Rear

Transfer Case Encoder Motor


Object Number: 646412  Size: CH

Connector Part Information

    • 15326642
    • 5-Way F GT 280 Sealed 5.8 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/

BLK

431

8 Volt Reference

B

BRN/WHT

1555

Channel P Encoder Signal

C

BLK/WHT

1554

Encoder Signal Ground

D

BLK

1552

Motor Control A

E

RED

1553

Motor Control B

Transfer Case Shift Control Module C1


Object Number: 73152  Size: CH

Connector Part Information

    • 12084944
    • 16-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

DK GRN/

WHT

1133

Class 2 Serial Data

A2-A6

--

--

Not Used

A7

BLK/WHT

1554

Encoder Signal Ground

A8

--

--

Not Used

B1-B5

--

--

Not Used

B6

BRN/WHT

1555

Channel P Encoder Signal

B7

--

--

Not Used

B8

BLK/WHT

751

Ground

Transfer Case Shift Control Module C2


Object Number: 73152  Size: CH

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-B8

--

--

Not Used

Transfer Case Shift Control Module C3


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

2250

Ground

B

ORN

1640

Battery Positive Voltage

C

BLK

1552

Motor Control A

D

RED

1553

Motor Control B