TEXAS EMISSIONS INSPECTIONS EXAM
Why are we concerned about motor vehicle pollution? - Answers -Motor vehicles emit
toxic air pollutants
Motor vehicles contribute to the formation of ground level ozone
A "typical" vehicle emits a half-ton of air pollution annually
A malfunctioning vehicle emits many times the amount of pollution of a "typical" vehicle
True or False: Motor vehicles are the largest source of ground-level ozone (or smog) in
Texas. - Answers -True
What is the primary purpose of OBDII? - Answers -To insure that vehicles emit the
minimum amount of pollutants through their useful life.
What does the OBD II inspection do? - Answers -Monitors all components that affect
vehicle emissions.
Detect and record malfunctions of the components that affect vehicle emissions.
Checks the results of the self-tests that occur while the vehicle is driven prior to the time
of inspection.
What model year and weight requirement are OBDII systems required in gasoline
powered vehicles? - Answers -1996 or newer/8,500 pounds or less
Code (DTC)? - Answers -To describe the failure indicated by the OBDII system
Why must you test if the MIL illuminates during the KOEO part of the inspection? -
Answers -The OBDII system cannot alert drivers to problems if the MIL does not work
What does it mean if the MIL is illuminated during the KOER inspection? - Answers -
The vehicle's OBDII system has detected a problem with the vehicle
What reasons should you fail a vehicle on the OBDII inspection? - Answers -The MIL
does not illuminate at all when the ignition key is turned to the KOEO position
The MIL is illuminated when the engine is running
The MIL status, as indicated by the scan tool, is ON
More than the allowable numbers of monitors are not "ready"
Which of the following is a reason the inspector can enter into the analyzer as to WHY a
vehicles' computer might fail to communicate with the analyzer? - Answers -Connector
is missing, damaged, or tampered
True or False: Vehicles over 8,500 GVWR must have a DLC. - Answers -False
Why are we concerned about motor vehicle pollution? - Answers -Motor vehicles emit
toxic air pollutants
Motor vehicles contribute to the formation of ground level ozone
A "typical" vehicle emits a half-ton of air pollution annually
A malfunctioning vehicle emits many times the amount of pollution of a "typical" vehicle
True or False: Motor vehicles are the largest source of ground-level ozone (or smog) in
Texas. - Answers -True
What is the primary purpose of OBDII? - Answers -To insure that vehicles emit the
minimum amount of pollutants through their useful life.
What does the OBD II inspection do? - Answers -Monitors all components that affect
vehicle emissions.
Detect and record malfunctions of the components that affect vehicle emissions.
Checks the results of the self-tests that occur while the vehicle is driven prior to the time
of inspection.
What model year and weight requirement are OBDII systems required in gasoline
powered vehicles? - Answers -1996 or newer/8,500 pounds or less
Code (DTC)? - Answers -To describe the failure indicated by the OBDII system
Why must you test if the MIL illuminates during the KOEO part of the inspection? -
Answers -The OBDII system cannot alert drivers to problems if the MIL does not work
What does it mean if the MIL is illuminated during the KOER inspection? - Answers -
The vehicle's OBDII system has detected a problem with the vehicle
What reasons should you fail a vehicle on the OBDII inspection? - Answers -The MIL
does not illuminate at all when the ignition key is turned to the KOEO position
The MIL is illuminated when the engine is running
The MIL status, as indicated by the scan tool, is ON
More than the allowable numbers of monitors are not "ready"
Which of the following is a reason the inspector can enter into the analyzer as to WHY a
vehicles' computer might fail to communicate with the analyzer? - Answers -Connector
is missing, damaged, or tampered
True or False: Vehicles over 8,500 GVWR must have a DLC. - Answers -False
