Envoy 2WD V6-4.3L VIN W (1998)
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.
Vehicle Speed