Question

technician a states that a dtc is set if the electrical system of a secondary air injection system fails. technician b states that a check engine light is also illuminated at that instance of component failure. who is correct?

a. technician a
b. technician b
c. both technician a and technician b
d. neither technician a nor technician b

Explanation:

When the electrical system of a secondary air injection system fails, a Diagnostic Trouble Code (DTC) is indeed set. Also, when a component failure occurs in the vehicle's systems (including the secondary air injection system), the check engine light (Malfunction Indicator Lamp - MIL) is illuminated. So both Technician A and Technician B are correct.

Answer:

C. Both Technician A and Technician B