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.
High Beam Input
1998 GMC Envoy 2WD V6-4.3L VIN WSECTION High Beam Input
Data:
Range: 0.0-18.0 Volts
The BCM uses this input in order to determine the state of the high beam headlamps. The BCM measures the circuit voltage at a point between both of the high beam headlamps and the beam selector switch. The high beam input voltage will vary depending on the state of the headlamps. Refer to the above table.
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.