GM Service Manual Online
For 1990-2009 cars only
Table 1: Auto Level Control (ALC) Air Compressor
Table 2: Auto Level Control (ALC) Inflator Relay
Table 3: Auto Level Control (ALC) Sensor
Table 4: Inflator Air Switch

Auto Level Control (ALC) Air Compressor


Object Number: 73234  Size: CH

Connector Part Information

    • 12059472
    • 7-Way F Metri-Pack Mixed Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1240

Fused battery feed

B

WHT

320

Auto level control air compressor vent solenoid output

C

ORN

1240

Fused battery feed

D

YEL

321

Auto level control compressor relay output-coil

E

ORN

1240

Fused battery feed

F

--

--

Not Used

G

BLK

1725

Ground

Auto Level Control (ALC) Inflator Relay


Object Number: 73241  Size: CH

Connector Part Information

    • 02965977
    • 8-Way F 56 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1267

Auto level control reset signal

B

LT BLU

1248

Auto level control height sensor

C

DK BLU

1249

Auto level control solenoid valve feed

D

ORN

1240

Fused battery feed

E

YEL

321

Auto level control compressor relay output-coil

F

WHT

1245

Auto level control inflator switch output

G

--

--

Not Used

H

BLK

1725

Ground

Auto Level Control (ALC) Sensor


Object Number: 62449  Size: CH

Connector Part Information

    • 12052848
    • 6-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1725

Ground

B

YEL

321

Auto level control compressor relay output-coil

C

LT BLU

1248

Auto level control height sensor

D

PNK

39

Fused ignition 1 feed

E

WHT

320

Auto level control air compressor vent solenoid output

F

--

--

Not Used

Inflator Air Switch


Object Number: 362750  Size: CH

Connector Part Information

    • 12015683
    • 3-Way F Pin Grip Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

1245

Auto level control inflator switch output

B

BLK

1725

Ground

C

PPL

1267

Auto level control reset signal