Understanding diagnostic trouble codes
Interactive Video
•
Engineering
•
Vocational training
•
Practice Problem
•
Hard
Alex Berry
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the voltage in a two-wire sensor circuit when an open circuit occurs?
The voltage fluctuates randomly.
The voltage drops to zero.
The voltage remains constant.
The voltage rises to five volts.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does high resistance in a circuit affect the monitored voltage?
It causes the voltage to rise above 4.8 volts.
It causes the voltage to fluctuate wildly.
It causes the voltage to drop below 0.2 volts.
It causes the voltage to remain stable.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of a short to voltage in a sensor circuit?
The signal voltage drops to zero.
The signal voltage goes to the shorted voltage level.
The signal voltage remains unchanged.
The signal voltage becomes erratic.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What DTC is set when a signal wire is shorted to ground?
Sensor performance fault.
Sensor circuit open.
Sensor signal circuit voltage too low.
Sensor voltage too high.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What characterizes a signal performance fault?
The signal voltage drops to zero.
The signal voltage goes outside the normal range.
The signal voltage remains constant.
The signal voltage behaves unusually within the normal range.
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