Question 1

How is network data transmission speed expressed?

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Question 2

What sensor has the wide range air/fuel ratio sensor (AFS) taken the place of?

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Question 3

What is an EEPROM, and how does it differ from older versions?

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Question 4

What is a speed density program and how does it work?

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Question 5

What is each one (1) or zero (0) in a data stream is referred to as?

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Question 6

What is the special software program called that is designed to manage the operation of all system monitors?

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Question 7

What is the PCM test called that compares sensor inputs to one another to see if the information makes sense when analyzed as a group?

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Question 8

What is the process called that changes an analog signal, such as a variable voltage signal, into a digital binary code signal?

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Question 9

Why would an air/fuel ratio sensor be used instead of a conventional oxygen sensor?

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Question 10

What is the CAN protocol, and how is it standardized?

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Question 11

What is the major difference in the air/fuel sensor operation over the conventional oxygen sensor?

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Question 12

What type of tools may be used to monitor the operation of a conventional oxygen sensor?

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Question 13

What are the three speed categories of serial data transfer specified for CAN systems?

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Question 14

What is a controller area network (CAN)?

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Question 15

What is the circuit over which serial data is transmitted called?

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Question 16

If the malfunction indicator light is on and a DTC P0131 is stored for O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1), what is the most likely cause for this code to be set?
A) EGR valve stuck open
B) EVAP purge solenoid stuck open
C) vacuum leak
D) high fuel pressure

Accepted Answer

A vacuum leak can cause a lean air/fuel mixture, which can cause the O2 sensor to read low voltage. This can lead to the code being set for O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1). The other options listed would not directly affect the operation of the O2 sensor in this manner.

Quiz 5: Computers and Input Sensors