ASE AUTO MAINTENANC1
ANSWERS GRADED A+
◉ Test light usage . Answer: Technician A says a test light is a good
diagnostic tool for testing general lighting circuits and grounds, but
should not be used on solid-state electronic circuits. Technician B says a
self-powered test light is a good diagnostic tool for testing voltage
sources.
◉ Windshield washer system issue . Answer: Fluid is spraying from the
nozzle on the passenger side, but not on the driver's side. Possible causes
include a blown fuse, no voltage at the pump, low fluid level, or a
kinked or blocked hose.
◉ Wire overheating . Answer: Technician A says if a wire is getting too
hot, it is a sign of higher-than-normal current flowing through the wire.
Technician B says the wire would heat up if some of the individual
strands were broken inside the wire insulation.
◉ Starting system voltage drop tests . Answer: Starting system voltage
drop tests are used to locate low resistance, shorts, opens, or high
resistance.
, ◉ Cooling system pressure maintenance . Answer: Cooling system
pressure is maintained by the use of the radiator cap.
◉ Charging system voltage output . Answer: Technician A says that
when checking charging system voltage output, all electrical accessories
should be on. Technician B says the reading should be around 18 volts.
◉ Pink transmission fluid . Answer: Technician A says that pink
colored transmission fluid is evidence of fluid aeration. Technician B
says it is caused by coolant contamination.
◉ Clear fluid dripping from vehicle . Answer: A driver notices a clear
fluid dripping from the underside of the vehicle with the engine running
and the A/C on. Technician A says this is refrigerant overflow, while
Technician B says the dripping will stop after the A/C system is shut off.
◉ Liquid leaking into passenger compartment . Answer: Liquid is
leaking into the passenger compartment from the evaporator. Technician
A says a leaking heater core could be the problem, while Technician B
says a clogged evaporator drain could be the issue.
◉ Insufficient air flow in A/C . Answer: A customer complains of
insufficient air flow through the vents when the A/C is turned on.
Technician A says it could be a clogged cabin air filter, while Technician
B suggests it could be a short at the blower motor.
ANSWERS GRADED A+
◉ Test light usage . Answer: Technician A says a test light is a good
diagnostic tool for testing general lighting circuits and grounds, but
should not be used on solid-state electronic circuits. Technician B says a
self-powered test light is a good diagnostic tool for testing voltage
sources.
◉ Windshield washer system issue . Answer: Fluid is spraying from the
nozzle on the passenger side, but not on the driver's side. Possible causes
include a blown fuse, no voltage at the pump, low fluid level, or a
kinked or blocked hose.
◉ Wire overheating . Answer: Technician A says if a wire is getting too
hot, it is a sign of higher-than-normal current flowing through the wire.
Technician B says the wire would heat up if some of the individual
strands were broken inside the wire insulation.
◉ Starting system voltage drop tests . Answer: Starting system voltage
drop tests are used to locate low resistance, shorts, opens, or high
resistance.
, ◉ Cooling system pressure maintenance . Answer: Cooling system
pressure is maintained by the use of the radiator cap.
◉ Charging system voltage output . Answer: Technician A says that
when checking charging system voltage output, all electrical accessories
should be on. Technician B says the reading should be around 18 volts.
◉ Pink transmission fluid . Answer: Technician A says that pink
colored transmission fluid is evidence of fluid aeration. Technician B
says it is caused by coolant contamination.
◉ Clear fluid dripping from vehicle . Answer: A driver notices a clear
fluid dripping from the underside of the vehicle with the engine running
and the A/C on. Technician A says this is refrigerant overflow, while
Technician B says the dripping will stop after the A/C system is shut off.
◉ Liquid leaking into passenger compartment . Answer: Liquid is
leaking into the passenger compartment from the evaporator. Technician
A says a leaking heater core could be the problem, while Technician B
says a clogged evaporator drain could be the issue.
◉ Insufficient air flow in A/C . Answer: A customer complains of
insufficient air flow through the vents when the A/C is turned on.
Technician A says it could be a clogged cabin air filter, while Technician
B suggests it could be a short at the blower motor.
