If an OBD II PCM Has Set a Catalyst Efficiency

question 9

Multiple Choice

If an OBD II PCM has set a catalyst efficiency code, all of the following pre-checks should be performed before condemning the converter EXCEPT for:

• A) checking the exhaust system for any leaks
• B) using a scan tool to check for O₂ sensor codes
• C) visually checking the O₂ sensors for cracked housings
• D) verifying that the engine does not have excessive cycling

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Definitions:

Kubler-Ross's Typology

A theoretical model that outlines five stages of grief experienced by individuals facing terminal illness or loss: denial, anger, bargaining, depression, and acceptance.

Medical Staff

Professionals, including doctors, nurses, and other healthcare practitioners, who work in hospitals or healthcare settings to provide medical care to patients.

Apathetic Siblings

Siblings who display a lack of interest or concern towards each other and potentially towards family matters in general.

Indifferent

Showing no particular interest or sympathy; apathetic or unconcerned.