GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 Yukon - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 Automatic Level Control Connector End Views
Connector 1: Automatic Level Control (ALC) Air Compressor
Connector 2: Automatic Level Control (ALC) Compressor Relay

Automatic Level Control (ALC) Air Compressor
Object Number: 655687 Size: CH

Connector Part Information

  • OEM: 12110751
  • Service: 12110751
  • Description: 7-Way F Metri-Pack 280 Series (BK)

Terminal Part Information

  • Pins: A, F, G
  • Terminal/Tray: 12110845/4
  • Core/Insulation Crimp: F/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: B- E
  • Terminal/Tray: 12110847/4
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Automatic Level Control (ALC) Air Compressor

Pin

Wire Color

Circuit No.

Function

A

L-BU

1112

Damping Relay Coil Control

B

D-BU

2249

Exhaust Solenoid Control

C

BK

407

Low Reference

D

TN

2252

Pressure Sensor Signal

E

GY

416

5-Volt Reference

F

OG

2440

Battery Positive Voltage

G

BK

1750

Ground

Automatic Level Control (ALC) Compressor Relay
Object Number: 535912 Size: CH

Connector Part Information

  • OEM: 12129716
  • Service: 15306045
  • Description: 4-Way F Metri-Pack 280 Series (GY)

Terminal Part Information

  • Pins: 30, 87
  • Terminal/Tray: 12110853/4
  • Core/Insulation Crimp: F/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: 85, 86
  • Terminal/Tray: 12110847/4
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Automatic Level Control (ALC) Compressor Relay

Pin

Wire Color

Circuit No.

Function

30

RD

742

Battery Positive Voltage

85

BN

541

Ignition 3 Voltage

86

L-BU

2248

Real Time Damping Compressor Relay Control

87

L-BU

1112

Damping Relay Coil Control