ASE A6 Exam 3: Comprehensive Study Guide
C - correct answer ✔✔Which of the following practices would be the LEAST LIKELY use of a 12 volt test
light?
A. Checking for power at a rear defogger grid
B. Checking for power at a headlight bulb
C. Checking for reference voltage at temperature sending unit
D. Checking the input and output voltage of a fuse at the fuse panel
B - correct answer ✔✔Referring to the 12 volt circuit above, the motor runs slowly when the switch is
turned on. Technician A says that a faulty motor ground could cause this condition. Technician B says
that faulty terminal at connector A could be the cause. Who is correct?
A. A only
B. Bonly
C. Both A and B
D. Neither A nor B
B - correct answer ✔✔Technician A says that a poor ground connection will cause increased current flow
in an electrical circuit which would likely blow a fuse. Technician B says that water corrosion in the wiring
will cause reduced current flow in an electrical circuit. Who is correct?
A. A only
B. Bonly
C. Both A and B
D. Neither A nor B
B - correct answer ✔✔Which of the following methods of testing amperage in a circuit would be LEAST
LIKELY to interrupt the circuit?
, A. Remove the switch and connect the ammeter leads to the exposed terminals
B. Connecting an amp clamp around the wire
C. Remove the relay and connect the ammeter leads across the control side of the circuit
D. Connecting the voltmeter across the fuse
B (A is wrong, an open switch should have high resistance, think of a bridge not letting cars pass) -
correct answer ✔✔A resistance test was performed on an open headlight switch and the result is 3.857
megohms. Technician A says that the switch is faulty because the reading is beyond the specifications.
Technician B says that the switch has over 3 million ohms of resistance. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
B - correct answer ✔✔Technician A says that an oscilloscope can be used as a scan tool to read live data
and codes. Technician B says that an oscilloscope can be used to view live sensor readings directly at
each sensor. Who is correct?
A. A only
B. Bonly
C. Both A and B
D. Neither A nor B
C - correct answer ✔✔Technician A says that a scan tool can be used to retrieve a trouble code from the
engine control module. Technician B says that a scan tool can be used to view live sensor data from the
engine control module. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
C - correct answer ✔✔Which of the following practices would be the LEAST LIKELY use of a 12 volt test
light?
A. Checking for power at a rear defogger grid
B. Checking for power at a headlight bulb
C. Checking for reference voltage at temperature sending unit
D. Checking the input and output voltage of a fuse at the fuse panel
B - correct answer ✔✔Referring to the 12 volt circuit above, the motor runs slowly when the switch is
turned on. Technician A says that a faulty motor ground could cause this condition. Technician B says
that faulty terminal at connector A could be the cause. Who is correct?
A. A only
B. Bonly
C. Both A and B
D. Neither A nor B
B - correct answer ✔✔Technician A says that a poor ground connection will cause increased current flow
in an electrical circuit which would likely blow a fuse. Technician B says that water corrosion in the wiring
will cause reduced current flow in an electrical circuit. Who is correct?
A. A only
B. Bonly
C. Both A and B
D. Neither A nor B
B - correct answer ✔✔Which of the following methods of testing amperage in a circuit would be LEAST
LIKELY to interrupt the circuit?
, A. Remove the switch and connect the ammeter leads to the exposed terminals
B. Connecting an amp clamp around the wire
C. Remove the relay and connect the ammeter leads across the control side of the circuit
D. Connecting the voltmeter across the fuse
B (A is wrong, an open switch should have high resistance, think of a bridge not letting cars pass) -
correct answer ✔✔A resistance test was performed on an open headlight switch and the result is 3.857
megohms. Technician A says that the switch is faulty because the reading is beyond the specifications.
Technician B says that the switch has over 3 million ohms of resistance. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
B - correct answer ✔✔Technician A says that an oscilloscope can be used as a scan tool to read live data
and codes. Technician B says that an oscilloscope can be used to view live sensor readings directly at
each sensor. Who is correct?
A. A only
B. Bonly
C. Both A and B
D. Neither A nor B
C - correct answer ✔✔Technician A says that a scan tool can be used to retrieve a trouble code from the
engine control module. Technician B says that a scan tool can be used to view live sensor data from the
engine control module. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
