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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 178 (LIGHTING SYSTEMS)COMPONENT LOCATORLIGHTING SYSTEMS CONNECTORSHEADLAMP SWITCH C1
2006 Isuzu Ascender S, 5.3 M, 4WD

Headlamp Switch C1

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Headlamp Switch C1
WARNING: This page is about a different car, the 2007 Isuzu Ascender, 2007 GMC Envoy, 2007 Chevrolet TrailBlazer, and 2007 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Headlamp Switch C1 Connector End View
GM647976Courtesy of GENERAL MOTORS CORP.
Headlamp Switch C1 Connector Parts Information

Connector Part Information 
  • OEM: 15332161
  • Service: 15306416
  • Description: 12-Way F GT 150 Series Unsealed (BK)
Terminal Part Information 
  • Terminal/Tray: 12191812/19
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)
Headlamp Switch C1 Connector Terminal Identification

Pin Wire Color Circuit No. Function
A GY 705 5-Volt Reference
B BN/WH 230 Instrument Panel Lamps Dimming Control
C BK 2250 Ground
D WH 103 Headlamp Switch Headlamps On Signal
E GY/BK 308 Park Lamp Switch On Signal
F L-GN 5462 DRL Defeat Switch Signal (w/o WX7)
G OG/BK 2090 Courtesy Lamps Dimming Input
H GY/BK 2226 Instrument Panel Lamps Dimmer Switch Low Reference
J D-BU/WH 1495 Courtesy Lamp On Signal
K PU/WH 1382 LED Dimming Signal
L PK 1348 Headlamp On Indicator Control
M PU 328 Interior Lamp Defeat Switch Signal
RENDER: 1.0x

NO RELATED

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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.