Question

technician a says out-of-range faults on the hall effect sensor can be pinpoint tested with a voltmeter. technician b says disconnecting the hall effect sensor produces an out-of-range +5 volts signal. who is correct?
select one:
a. technician a
b. technician b
c. both technician a and technician b
d. neither technician a nor technician b

Explanation:

To determine who is correct, we analyze each technician's statement:

• Technician A: Hall effect sensor out - of - range faults can be tested with a voltmeter. Hall effect sensors (used in automotive/electrical systems) have voltage - related signals, and a voltmeter can measure voltage levels to identify out - of - range faults. This is a valid testing method.
• Technician B: Disconnecting the Hall effect sensor produces an out - of - range +5 volts signal. In many systems, when a Hall effect sensor (or similar sensors) is disconnected, the ECU (Electronic Control Unit) may detect a fault and output an out - of - range signal (like +5V in some configurations) as the sensor is not providing its normal input. This is also consistent with typical sensor - ECU interactions.

Answer:

c. Both Technician A and Technician B