What Happens If the DEF Runs Low During Vehicle Operation

question 10

Multiple Choice

What happens if the DEF runs low during vehicle operation?

• A) The engine is immediately shut down.
• B) The vehicle enters progressive trim back modes.
• C) Nothing.
• D) A code is logged in the PCM to notify technicians the next time vehicle is serviced.

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Definitions:

Type II Error

The error that occurs when a false null hypothesis is not rejected.

False Null Hypothesis

Indicates a situation where the null hypothesis is incorrectly rejected when it is in fact true.

Failing

The condition or process of not meeting a desirable or intended objective, often used in the context of academic performance or machinery operation.

Probability

The quantification of an event's probability, expressed as a value from 0 to 1, where 0 means the event cannot happen and 1 means it will definitely occur.