AD abs sensor

the output signal of a wheel speed sensor will be

• a varying AC voltage

• a sawtooth varying frequency

• square wave constant frequency

• square wave varying frequency

incorrect tyre size can affect the ABS operation

• True

• False

incorrect tyre pressure can affect the ABS operation

• false

• true

The speed of the wheel is determined by

• The voltage of the wheel speed sensor signal

• the resistance of the wheel speed sensor signal

• the frequency of the wheel speed sensor signal

• the amplitude of the wheel speed sensor signal

when doing electrical test on a circuit the first voltage to be measured is

• battery voltage

• 12v reference

• ignition voltage

• module voltage

if there is more than one wheel speed sensor DTC you should

• replace both sensors

• clear the codes and retest

• diagnose the codes separately

• replace the ABS control module

while observing a scan tool with the vehicle travelling on a straight road at 40mph

• The front wheel speed will be higher than the rear wheel speed in a rear wheel drive car

• The front wheel speed will be higher than the rear wheel speed in a front wheel drive car

• the wheel speed parameters should all be the same

• the wheel speed parameters should all be different

a typical two wire wheel speed sensor circuit consists of

• a 12volt and a pull down circuit

• a 12 volt and a pull up circuit

• a low reference and a pull down circuit

• a low reference and a pull up circuit