LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2011 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1924 (Component Connector End View (1 Of 5)) >> Automatic Level Control (ALC) Relay (Z55)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Automatic Level Control (ALC) Relay (Z55)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Automatic Level Control (ALC) Relay (Z55) Connector End View
GM535912Courtesy of GENERAL MOTORS CORP.
Automatic Level Control (ALC) Relay (Z55)

Pin Wire Color Circuit Function
30 3 RD 1842 Battery Positive Voltage
85 0.5 PK 739 Ignition Voltage
86 0.5 L-BU/WH 1112 Damping Relay Coil Control
87 3 L-BU 2248 Automatic Level Control Compressor Relay Control
Connector Part Information 
  • OEM: 12129716
  • Service: 15306045
  • Description: 4-Way F Metri-Pack 280 Series, Flexlock (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: C/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)