GM Service Manual Online
For 1990-2009 cars only

Automatic Level Control (ALC) Compressor


Object Number: 280763  Size: CH

Connector Part Information

    • 12015788
    • 4 Way F Weather Pack (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

320

Automatic Level Control Exhaust Solenoid Control

B

DK GRN

322

Automatic Level Control Compressor Motor Control

C

RED

1342

Battery Positive Voltage

D

BLK

1050

Ground

Automatic Level Control (ALC) Module


Object Number: 697039  Size: CH

Connector Part Information

    • 12052846
    • 6 Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

850

Ground

B

YEL

321

Automatic Level Control Relay Coil Supply Voltage

C

ORN

2340

Battery Positive Voltage

D

BRN

41

Ignition 3 Voltage

E

WHT

320

Automatic Level Control Exhaust Solenoid Control

F

BLK

903

Ignition Coil Supply Voltage