GM Service Manual Online
For 1990-2009 cars only

Rear Axle Connector End Views w/o CTF

Table 1: Differential Lock Control Valve (HNB)
Table 2: Differential Lock Switch (HNB)

Differential Lock Control Valve (HNB)


Object Number: 68721  Size: CH

Connector Part Information

    • 15300027
    • 2-Way F Metri-Pack 280 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN/WH

75

Differential Lock Solenoid Valve Control

B

BK

76

Ground

Differential Lock Switch (HNB)


Object Number: 1452809  Size: CH

Connector Part Information

    • 7323-1660
    • 6-Way F Yazaki (WH)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PK

48

Ignition 1 Voltage

3

L-GN

49

Differential Lock Switch Signal

4-6

--

--

Not Used

Rear Axle Connector End Views CTF

Table 1: Differential Lock Control Valve (HNB)
Table 2: Differential Lock Switch (HNB, HPL or HPN)

Differential Lock Control Valve (HNB)


Object Number: 68721  Size: CH

Connector Part Information

    • 15300027
    • 2-Way F Metri-Pack 280 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN/WH

75

Differential Lock Solenoid Valve Control

B

BK

76

Ground

Differential Lock Switch (HNB, HPL or HPN)


Object Number: 1452809  Size: CH

Connector Part Information

    • 7323-1660
    • 6-Way F Yazaki (WH)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PK

NB01

Ignition 1 Voltage

3

L-GN

NB02

Differential Lock Switch Signal

4-6

--

--

Not Used