ASE A6 Electrical/Electronic Systems
A circuit is wired in parallel. Technician A says that total circuit current is divided across
each load. Technician B says the voltage is the same at each load.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-C. Current will be divided across the loads and the voltage is
the same at each load.
A circuit is wired in series. Technician A says the total of all voltage drops will equal the
battery voltage. Technician B says the current flow through each part of the circuit Is the
same.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-C. Current remains constant throughout a circuit, and the total
of all voltage drops always equals the source voltage provided.
A communications failure in the CAN system will set what type of OTC?
A. B - Body
B. C - Chassis
C. P - Powertrain
D. U - Network - ANS-D. The onboard diagnostic system will set a code beginning with
the letter U.
A customer complains of static on the radio. Technician A says that loose or missing
ground wires could be the cause. Technician B says that a defective antenna cable
could be the cause.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
,D. Neither A or B - ANS-C. Poor sound quality, static and poor reception can be caused
by a defective antenna, an antenna that is not grounded or connected properly or one
that is
not trimmed properly. Static can also be caused by faulty ignition components, loose or
missing ground wires and defective noise suppression devices.
A horn makes a very weak sound. Technician A says a faulty power connection could
be the cause.
Technician B says a faulty fuse could be the cause.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-A. If horn sound is a weak tone, current is too low, and poor
electrical connections may be the culprit, If a fuse is blown, the horn will not sound at all.
A power seat system is extremely noisy when operated. All of the following could be the
cause
EXCEPT a:
A. faulty motor
B. faulty transmission
C. bad ground
D. lack of lubricant - ANS-C. While a bad ground would disable the system or make the
power seat operate slowly, it would not be the cause of noisy operation.
A rear defogger grid is being tested. Technician A says that when probing a grid line, the
voltmeter should decrease its reading as the probe gets closer to the ground bus bar.
Technician B says that if voltmeter read 12 volts at both ends of the grid line, there is an
open in the grid line.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-A. If the test light remains bright at both ends of the grid lines,
check for a loose
, ground. If there is an open in a grid line, the test light will not get dimmer and will stay
the same brilliance until it reaches the other side of the open, at which point it will go
out.
A start/clutch interlock switch is being tested. Technician A says that, with the clutch
pedal in the
released position, the switch should have continuity when checked with an ohmmeter.
Technician B says
that, with the pedal depressed, there should be voltage on both sides of the switch
when checked with a voltmeter.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-B. The start/clutch interlock switch is open when the dutch
pedal is in the released position, interrupting current flow in the starter circuit.
Technician A is wrong because an open switch should have no continuity. When the
clutch pedal is depressed, the switch closes, allowing current flow in the circuit.
A vehicle continues to trip the windshield wiper circuit breaker. Technician A says the
cause could be a short circuit Technician B says that the cause could be binding wiper
linkage.
Who is right?
A. Technician A only
B. Teohnician B only
C. Both A and B
D. Neither A or B - ANS-C. A circuit breaker will disconnect the circuit if the circuit has
higher than normal current flow, which can be caused by a short in the circuit or a
binding of the wiper linkage.
A vehicle's tum signals flash too slowly. Technician A claims that the condition could be
caused by a faulty flasher. Technician B says that a bulb may be the wrong type.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-.c
A circuit is wired in parallel. Technician A says that total circuit current is divided across
each load. Technician B says the voltage is the same at each load.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-C. Current will be divided across the loads and the voltage is
the same at each load.
A circuit is wired in series. Technician A says the total of all voltage drops will equal the
battery voltage. Technician B says the current flow through each part of the circuit Is the
same.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-C. Current remains constant throughout a circuit, and the total
of all voltage drops always equals the source voltage provided.
A communications failure in the CAN system will set what type of OTC?
A. B - Body
B. C - Chassis
C. P - Powertrain
D. U - Network - ANS-D. The onboard diagnostic system will set a code beginning with
the letter U.
A customer complains of static on the radio. Technician A says that loose or missing
ground wires could be the cause. Technician B says that a defective antenna cable
could be the cause.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
,D. Neither A or B - ANS-C. Poor sound quality, static and poor reception can be caused
by a defective antenna, an antenna that is not grounded or connected properly or one
that is
not trimmed properly. Static can also be caused by faulty ignition components, loose or
missing ground wires and defective noise suppression devices.
A horn makes a very weak sound. Technician A says a faulty power connection could
be the cause.
Technician B says a faulty fuse could be the cause.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-A. If horn sound is a weak tone, current is too low, and poor
electrical connections may be the culprit, If a fuse is blown, the horn will not sound at all.
A power seat system is extremely noisy when operated. All of the following could be the
cause
EXCEPT a:
A. faulty motor
B. faulty transmission
C. bad ground
D. lack of lubricant - ANS-C. While a bad ground would disable the system or make the
power seat operate slowly, it would not be the cause of noisy operation.
A rear defogger grid is being tested. Technician A says that when probing a grid line, the
voltmeter should decrease its reading as the probe gets closer to the ground bus bar.
Technician B says that if voltmeter read 12 volts at both ends of the grid line, there is an
open in the grid line.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-A. If the test light remains bright at both ends of the grid lines,
check for a loose
, ground. If there is an open in a grid line, the test light will not get dimmer and will stay
the same brilliance until it reaches the other side of the open, at which point it will go
out.
A start/clutch interlock switch is being tested. Technician A says that, with the clutch
pedal in the
released position, the switch should have continuity when checked with an ohmmeter.
Technician B says
that, with the pedal depressed, there should be voltage on both sides of the switch
when checked with a voltmeter.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-B. The start/clutch interlock switch is open when the dutch
pedal is in the released position, interrupting current flow in the starter circuit.
Technician A is wrong because an open switch should have no continuity. When the
clutch pedal is depressed, the switch closes, allowing current flow in the circuit.
A vehicle continues to trip the windshield wiper circuit breaker. Technician A says the
cause could be a short circuit Technician B says that the cause could be binding wiper
linkage.
Who is right?
A. Technician A only
B. Teohnician B only
C. Both A and B
D. Neither A or B - ANS-C. A circuit breaker will disconnect the circuit if the circuit has
higher than normal current flow, which can be caused by a short in the circuit or a
binding of the wiper linkage.
A vehicle's tum signals flash too slowly. Technician A claims that the condition could be
caused by a faulty flasher. Technician B says that a bulb may be the wrong type.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANS-.c
