Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2011TAHOE BASE, 5.3 0, 4WDREPAIR AND DIAGNOSISELECTRICALWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - ELECTRONIC STEERING CONTROL MODULE X2 THROUGH MEMORY SEAT MODULECOMPONENT CONNECTOR END VIEWSHEADLAMP- LEFT LOW BEAM (X88)

2011 Chevrolet Tahoe Base, 5.3 0, 4WD

Headlamp- Left Low Beam (X88)

2011 Chevrolet Tahoe Base, 5.3 0, 4WDSECTION Headlamp- Left Low Beam (X88)

Fig 1: Headlamp- Left Low Beam (X88) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
A	0.8 BK	150	Ground
B	1 YE	712	Left Headlamp Low Beam Control

Connector Part Information

Harness Type: Left Headlamp
OEM Connector: 12124819
Service Connector: 12085498
Description: 2-Way F Metri-Pack 280 Series, Sealed (BK)

Terminal Part Information

Terminal/Tray: Service by Harness- See Part Catalog
Core/Insulation Crimp: Not Available
Release Tool/Test Probe: Not Available

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.