gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 450 > < Initial Inspection and Diagnostic Overview|Page 448
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Input 2

Range:  ACTIVE/INACTIVE
The interior lamp request information refers to the interior lamp request circuit.

ACTIVE displays momentarily when the driver turns the interior lamp ON and the inadvertent power relay is ON.

INACTIVE displays when the inadvertent power relay is ON.

Headlamp Request Switch

Initial Inspection and Diagnostic Overview|Page 450 > < Initial Inspection and Diagnostic Overview|Page 448