Envoy 2WD V6-4.3L VIN W (1998)
Range: AA-ZZ
This information refers to the security identification number in the BCM.
Dimming Potentiometer
Data
Range: 0.0-18.0 volts
The voltage value displayed indicates the position of the dome lamp switch (thumb wheel). Zero (0) volts will be displayed when the following
conditions exist:
^
The headlamp switch is in the AUTO position.
^
The daytime running lamps are OFF.
10.5 volts will be displayed when the following conditions exist:
^
The park lamps or the headlamps are turned ON.
^
The dome lamp switch is in the FULL bright position (thumb wheel turned completely up just before the detent).
0.1 volts will be displayed if the following conditions exist:
^
The park lamps or the headlamps are turned ON.
^
The dimmer switch is in the FULL DIM position (thumbwheel turned completely down).
The dimming potentiometer voltage will change as the dome lamp switch is moved between FULL BRIGHT and FULL DIM. The voltage value
displayed should vary between 0.1 - 12.7 volts depending on the position of the dome lamp switch.
Battery Voltage
