GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Driveline/Axle 🢒 Drive Axle - Locking/Limited Slip 🢒 Rear Axle Connector End Views
Table 1: Differential Lock Switch
Table 2: Rear Axle Shift Actuator-Two Speed
Table 3: Rear Axle Shift Relay-Two Speed
Table 4: Rear Axle Shift Switch-Two Speed
Table 5: Rear Axle Shift Switch-Two Speed (HR1/HRZ)
Table 6: Rear Axle Shift Switch-Two Speed (Automatic)

Differential Lock Switch


Object Number: 82383 Size: CH

Connector Part Information
    • 12047662
    • 2-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

GY/BK

2659

Shift Motor Relay - Control - Electric Operated

B

BK

750

Ground

Rear Axle Shift Actuator-Two Speed


Object Number: 309547 Size: CH

Connector Part Information
    • 12020731
    • 3-Way Sealed F (BN)

Pin

Wire Color

Circuit No.

Function

1

L-BU

1469

Low Reference

2

BK

350

Ground

3

L-GN

1466

Shift-Signal

Rear Axle Shift Relay-Two Speed


Object Number: 535919 Size: CH

Connector Part Information
    • 12110539
    • 5-Way F Metri-Pack 280 Series Flexlock (BK)

Pin

Wire Color

Circuit No.

Function

30

BN

241

Ignition 3 Voltage

85

GY/BK

1467

Air Shift Switch Signal Air Operated

86

BN

241

Ignition 3 Voltage

87

L-BU

1469

Shift Motor Control - High Gear

87A

L-GN

1466

Shift Signal

Rear Axle Shift Switch-Two Speed


Object Number: 82383 Size: CH

Connector Part Information
    • 12047662
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

GY/BK

1467

Air Shift Switch Signal Air Operated

B

BK

250

Ground

Rear Axle Shift Switch-Two Speed (HR1/HRZ)


Object Number: 876326 Size: CH

Connector Part Information
    • 12065402
    • 2-Way F Metri-Pack 150 Series (BN)

Pin

Wire Color

Circuit No.

Function

C

GY/BK

1467

Air Shift Switch Signal Air Operated

D

BK

250

Ground

Rear Axle Shift Switch-Two Speed (Automatic)


Object Number: 40446 Size: CH

Connector Part Information
    • 12177194
    • 6-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

BK

750

Ground

B

BK

750

Ground

C

GY/BK

1467

Air Shift Switch Signal Air Operated

D

PK

239

Ignition 1 Voltage

E

BN

2509

Left Rear Park Lamps Supply Voltage/Left Rear Park Lamps and License Lamps Supply Voltage

F

GY/BK

1467

Air Shift Switch Signal Air Operated