AD Wheel speed sensor operation and testing

When testing magneto resistive wheel speed sensors with a multi-meter, connect the meter..

• in series with the sensor set to Amps

• in series with the sensor set to Ohms

• in parallel with the sensor set to Amps

• in parallel with the sensor set to Ohms

The current flow within a magneto resistive wheel speed sensor will be

• 0.7 or 0.14 Amps

• 0.007 or 0.014 Amps

• 7 or 14 Amps

• 1 or 2 amps

• 0 or 1 amp

As a tone wheel tooth approaches an inductive sensor stator pole, the sensor generates?

• a negative alternate current signal

• a positive alternate current signal

• a negative direct current signal

• a positive direct current signal

Excessive resistance in a magneto-resistive wheel speed sensor circuit would be indicated by?

• Low current flow

• a constant 0.14 amp current flow

• high current flow

• higher than normal voltage

The resistance of a magneto resistive wheel speed sensor is lower than an inductive wheel speed sensor

• True

• False

Which of the following faults would be associated with a wheel speed sensor DTC?

Click all that apply

• Wheel bearing faults

• debris between sensor and tone wheel

• incorrectly installed wheel speed sensor

• Water ingress

• incorrect air gap

An inductive wheel sensor generates a ___________ waveform with a frequency that is proportional to the tone wheel speed

• analogue

• digital

• Direct current

• direct voltage

What is the main advantage of the magneto-resistive wheel speed sensor over inductive types

• more reliable

• faster signal processing

• less expensive

• easier to replace

What mode on the multi-meter can be used to correctly test an inductive wheel speed sensor?

• Ohms

• Amps

• Volts AC

• Volts DC

• Duty Cycle

inductive wheel speed sensors produce a digital signal

• True

• False