Automatic Level Control (ALC) Compressor (G67)

2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Automatic Level Control (ALC) Compressor (G67)
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Automatic Level Control (ALC) Compressor (G67) Connector End View
GM816167Courtesy of GENERAL MOTORS CORP.
Automatic Level Control Suspension Connector End Views

Connector Part Information 
  • OEM: 12059472
  • Service: 12101830
  • Description: 7-Way F 150/280 Series GT (BK)
Terminal Part Information 
  • Pins: A-D
  • Terminal: 12048074/Tray 2
  • Core/Insulation Crimp: Pins A, D: 2/1
  • Core/Insulation Crimp: Pins B,C: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A
  • Pins: E, G
  • Terminal: 12048451/Tray 2
  • Core/Insulation Crimp: F/3
  • Release Tool/Test Probe: 12094430/J-35616-40
Automatic Level Control (ALC) Compressor (G67)

Pin Wire Color Circuit No. Function
A RD/WH 140 Battery Positive Voltage
B WH 320 Automatic Level Control Exhaust Solenoid Control
C RD/WH 140 Battery Positive Voltage
D YE 321 Automatic Level Control Relay Control
E RD/WH 140 Battery Positive Voltage
F - - Not Used
G BK 350 Ground
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.