B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
Lateral Accelerometer: Description and Operation
G-SWITCH
The G-switch is used on 4x4 vehicles only. When driven in the 4-wheel drive mode all four wheels are mechanically linked and a situation could arise
in which one wheel locks up and causes all four wheels to lock up and skid. The speed sensors would indicate the vehicle speed as zero. Without the
G-switch, the 4WABS control module would have no data to compare and would react as if the vehicle were stopped when in fact it is moving.
The G-switch detects and indicates to the 4WABS control module that the vehicle is moving.
