ASE-A6 Test Prep Electrical and Electronic Systems Exam Questions with Correct Answers
Latest Update 2025/2026
An engine oil pressure gauge reads incorrectly. Which of the following is most likely the cause? -
Answers Excessive resistance in the wire between the sending unit and the gauge
While checking an alternator output, it has been found to be lower than specifications, Tech A
says it is a result of colder than normal air temperatures. Tech B says it's more than likely the
loose drive belt that is causing the problem. Who's correct? - Answers Tech B
After a technician charged a battery at 40 Amps for 3 minutes the battery voltage measured at
15.8V. What should the technician do? - Answers Replace the battery
Technician A says that a yellowish headlamp is the result of a faulty or weak ground connection.
Technician B says that an extremely bright headlamp is from an extremely good ground
connection. Who's correct? - Answers Tech A
Charge output on most vehicles ranges from: - Answers 13.5 to 15.0 volts
A truck has been wired up with trailer lights using the factory rear lighting harness, but not any
of the factory trailer wiring. Tech A says this can cause a strain on the factory rear lighting. Tech
B says this can cause the trucks turn signals to flash faster than normal when the trailer is
hooked up. Who's correct? - Answers Both
Tech A says that LED type dash bulbs are polarity conscious. Tech B says that a 194 dash bulb
can be used as a substitute for a faulty LED bulb. Who's correct? - Answers Tech A
On some radios a security code has to be entered to turn on the radio. Tech A says these codes
may be in the glove box. Tech B says these codes may need to be obtained from the
manufacturer. Who's correct? - Answers Both
Name three different ways to load test a battery. - Answers Conductance, Carbon Pile, and using
the starter motor
Which of the following is the LEAST likely for a rear wiper motor to not have a working washer
system even though the wiper motor works perfectly? - Answers Defective washer pump
What does OL mean on your DVOM? - Answers Out of limits
A battery drain has been located to the door lock system. Tech A says to check the door lock
switch operation for a stuck switch. Tech B says to check the door lock relays or BCM for a
stuck relay signal. Who's correct? - Answers Both
Two technicians are discussing a power seat problem. Tech A says that a faulty seat memory
system can block the entire seat from moving. Tech B says that a bad forward and reverse
motor can stop the entire seat from moving. Who's correct? - Answers Tech A
, The most common failure of a cruise control system is: - Answers A faulty brake light switch
Tech A says that you should check to see if the motor is locked up before testing any starter
problems. Tech B says to check the battery condition before any starter tests. Who's correct? -
Answers Both A and B
Two technicians are talking about starter current draw. Technician A says the slower a motor
turns the more amperage it will draw. Technician B says defective field windings will cause a
high resistance and increase the current draw. Who's correct? - Answers Tech A
You are checking a car in your service bay with no alternator output. Should you? - Answers
Check to see if there is any mechanical reason for the alternator not to be working.
Two technicians are checking the cold cranking amps of a battery. Tech A says that a
refractometer will determine the cold cranking amps. Tech B says that a fully discharged and
recharged battery is the only way to check cold cranking amps. Who's correct? - Answers
Neither
The oil pressure warning indicator flickers whenever the vehicle is driven down a bumpy road.
Which of the following is most likely the cause? - Answers The sending unit has a bad
connection
Technician A states that a starter motor draws high current during colder temperatures.
Technician B states that a starter motor draws high current when the engine is fully warmed up.
Who's correct? - Answers Tech A
Technician A states that a flooded battery uses anti-acids in a hydrochloric solution to maintain
a battery charge. Technician B states a flooded battery has 90% sulfuric acid in the solution to
maintain the battery charge. Who's correct? - Answers Neither
A vehicle comes in with none of the gauges operating. Tech A says to check the voltage supply
first. Tech B says to check for codes first. Who's correct? - Answers Tech B
Two technicians are discussing daytime running lamp operation. Technician A states daytime
running lights are pulse-width modulated to increase headlamp life. Technician B states daytime
running lights that are not as bright as headlamps might be wired in-series to each other. Who is
correct? - Answers Both Technicians
What is an open circuit? - Answers An open circuit is an electrical circuit that has no path for
current to flow
What type of sensor is used for the fuel gauge? - Answers Potentiometer
On older vehicles the turn signal flasher is found in various places, but the hazard flasher is
always found on the fuse box. - Answers False
Latest Update 2025/2026
An engine oil pressure gauge reads incorrectly. Which of the following is most likely the cause? -
Answers Excessive resistance in the wire between the sending unit and the gauge
While checking an alternator output, it has been found to be lower than specifications, Tech A
says it is a result of colder than normal air temperatures. Tech B says it's more than likely the
loose drive belt that is causing the problem. Who's correct? - Answers Tech B
After a technician charged a battery at 40 Amps for 3 minutes the battery voltage measured at
15.8V. What should the technician do? - Answers Replace the battery
Technician A says that a yellowish headlamp is the result of a faulty or weak ground connection.
Technician B says that an extremely bright headlamp is from an extremely good ground
connection. Who's correct? - Answers Tech A
Charge output on most vehicles ranges from: - Answers 13.5 to 15.0 volts
A truck has been wired up with trailer lights using the factory rear lighting harness, but not any
of the factory trailer wiring. Tech A says this can cause a strain on the factory rear lighting. Tech
B says this can cause the trucks turn signals to flash faster than normal when the trailer is
hooked up. Who's correct? - Answers Both
Tech A says that LED type dash bulbs are polarity conscious. Tech B says that a 194 dash bulb
can be used as a substitute for a faulty LED bulb. Who's correct? - Answers Tech A
On some radios a security code has to be entered to turn on the radio. Tech A says these codes
may be in the glove box. Tech B says these codes may need to be obtained from the
manufacturer. Who's correct? - Answers Both
Name three different ways to load test a battery. - Answers Conductance, Carbon Pile, and using
the starter motor
Which of the following is the LEAST likely for a rear wiper motor to not have a working washer
system even though the wiper motor works perfectly? - Answers Defective washer pump
What does OL mean on your DVOM? - Answers Out of limits
A battery drain has been located to the door lock system. Tech A says to check the door lock
switch operation for a stuck switch. Tech B says to check the door lock relays or BCM for a
stuck relay signal. Who's correct? - Answers Both
Two technicians are discussing a power seat problem. Tech A says that a faulty seat memory
system can block the entire seat from moving. Tech B says that a bad forward and reverse
motor can stop the entire seat from moving. Who's correct? - Answers Tech A
, The most common failure of a cruise control system is: - Answers A faulty brake light switch
Tech A says that you should check to see if the motor is locked up before testing any starter
problems. Tech B says to check the battery condition before any starter tests. Who's correct? -
Answers Both A and B
Two technicians are talking about starter current draw. Technician A says the slower a motor
turns the more amperage it will draw. Technician B says defective field windings will cause a
high resistance and increase the current draw. Who's correct? - Answers Tech A
You are checking a car in your service bay with no alternator output. Should you? - Answers
Check to see if there is any mechanical reason for the alternator not to be working.
Two technicians are checking the cold cranking amps of a battery. Tech A says that a
refractometer will determine the cold cranking amps. Tech B says that a fully discharged and
recharged battery is the only way to check cold cranking amps. Who's correct? - Answers
Neither
The oil pressure warning indicator flickers whenever the vehicle is driven down a bumpy road.
Which of the following is most likely the cause? - Answers The sending unit has a bad
connection
Technician A states that a starter motor draws high current during colder temperatures.
Technician B states that a starter motor draws high current when the engine is fully warmed up.
Who's correct? - Answers Tech A
Technician A states that a flooded battery uses anti-acids in a hydrochloric solution to maintain
a battery charge. Technician B states a flooded battery has 90% sulfuric acid in the solution to
maintain the battery charge. Who's correct? - Answers Neither
A vehicle comes in with none of the gauges operating. Tech A says to check the voltage supply
first. Tech B says to check for codes first. Who's correct? - Answers Tech B
Two technicians are discussing daytime running lamp operation. Technician A states daytime
running lights are pulse-width modulated to increase headlamp life. Technician B states daytime
running lights that are not as bright as headlamps might be wired in-series to each other. Who is
correct? - Answers Both Technicians
What is an open circuit? - Answers An open circuit is an electrical circuit that has no path for
current to flow
What type of sensor is used for the fuel gauge? - Answers Potentiometer
On older vehicles the turn signal flasher is found in various places, but the hazard flasher is
always found on the fuse box. - Answers False
