Why Should a DSO Be Used in Diagnosing a Vehicle's

question 6

Multiple Choice

Why should a DSO be used in diagnosing a vehicle's multiplexing bus?

• A) To pull diagnostic trouble codes (DTCs) from the computers on the bus
• B) To look at fuel trim information
• C) To check monitor readiness status
• D) To check for the presence of serial data (binary code) when a scan tool fails to communicate