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 MANUALSGMC1998ENVOY 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULETESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL DATA DEFINITIONSINPUT 2DOME LAMP SWITCH
1998 GMC Envoy 2WD V6-4.3L VIN W
Dome Lamp Switch
1998 GMC Envoy 2WD V6-4.3L VIN WSECTION Dome Lamp Switch
Input 2:
Range: ON/ OFF
The BCM uses the dome lamp switch input in determining if the dome lamp switch (thumb wheel) is requesting the interior lights to turn ON.
ON displays if the dome lamp switch requests the BCM to turn the interior lights ON (full up position past the detent).
OFF displays when the dome lamp switch does not request the BCM to turn the interior lights ON (not in the full up position past the detent).
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.