GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Aztek - FWD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Automatic Level Control Connector End Views
Table 1: Auto Level Control (ALC) Air Compressor
Table 2: Automatic Level Control (ALC) Compressor Relay
Table 3: Automatic Level Control (ALC) Inflator Air Switch
Table 4: Automatic Level Control (ALC) Inflator Solenoid
Table 5: Auto Level Control (ALC) Sensor

Auto Level Control (ALC) Air Compressor


Object Number: 73234 Size: CH

Connector Part Information
    • 1205-9472
    • 7-Way F Metri-Pack Mixed Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

840

Battery Positive Voltage

B

OG

840

Battery Positive Voltage

C

WH

320

Auto Level Control Exhaust Solenoid Control

D

YE

321

Automatic Level Control Relay Coil Supply Voltage

E

OG

1240

Battery Positive Voltage

F

OG

840

Battery Positive Voltage

G

BK

450

Ground

H

WH

837

Automatic Level Control Inflator Relay Coil Control

Automatic Level Control (ALC) Compressor Relay


Object Number: 535912 Size: CH

Connector Part Information
    • 12110787
    • 4-Way F Metri Pack 150 Series (GY)

Pin

Wire Color

Circuit No.

Function

30

OG

840

Battery Positive Voltage

85

BK

450

Ground

86

YE

321

Automatic Level Control Relay Coil Supply Voltage

87

OG

1240

Battery Positive Voltage

Automatic Level Control (ALC) Inflator Air Switch


Object Number: 39665 Size: CH

Connector Part Information
    • 12089248
    • 4-Way F Metri Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

OG

840

Battery Positive Voltage

B

--

--

Not Used

C

L- BU

1770

Ride Control Serial Data

D

WH

1245

Automatic Level Control Inflation Timer Relay Coil Control

Automatic Level Control (ALC) Inflator Solenoid


Object Number: 684795 Size: CH

Connector Part Information
    • 12052643
    • 2-Way F Metri Pack 150 Series, Sealed (RED)

Pin

Wire Color

Circuit No.

Function

A

--

840

Battery Positive Voltage

B

--

837

Automatic Level Control (ALC) Inflator Relay Coil Control

Auto Level Control (ALC) Sensor


Object Number: 831368 Size: CH

Connector Part Information
    • 15326836
    • 8-Way F GT 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

WH

320

Automatic Level Control Exhaust Solenoid Control

B

YE

321

Automatic Level Control Relay Coil Supply Voltage

C

BK/WH

151

Ground

D

YE

843

Accessory Voltage

E

L- BU

1770

Ride Control Serial Data

F

WH

837

Automatic Level Control Inflator Relay Coil Control

G

WH

1245

Automatic Level Control Inflation Timer Relay Coil Control

H

OG

840

Battery Positive Voltage