OBD 2/ Scan tool

Front

Which terminal of the OBD-II data link connector is the sensor ground for all vehicles?

Back

5

Front

Which terminal of the OBD-II data link connector is the 12 volt for all vehicles?

Back

16

Front

What is the data link connector (DLC)?

Back

Front

Who is correct regarding OBDII allowing a technician to hook up a generic scan tool to read and clear DTC's and the vehicle's operation when the MIL is on?

Back

Tech A

Front

Harmful tailpipe emissions include all of these EXCEPT: carbon monoxide (CO), hydrocarbons (HCs), particulate matter (PM), oxygen (O2)

Back

oxygen (O2)

Front

In what year did it become mandatory for all vehicles to be on-board diagnostic II (OBDII) compliant?

Back

1996

Front

A scan tool detects a communications fault in the controller area network bus (CAN-bus). Which diagnostic trouble code (DTC) would MOST likely be stored? Options: P0402, U0021, B0092, C0035

Back

U0021

Answer explanation

1ST Digit indicates the location of the fault

Front

Onboard diagnostics II (OBDII) data are retrieved by connecting a scan tool to the:

Back

data link connector (DLC)

Front

Which component in the exhaust system helps in the reduction of exhaust emissions? Options: Manifold, Catalytic converter, Muffler, Resonator

Back

Catalytic converter

Front

Which mode of the OBD II system is used to clear DTCs and stored values? Options: $01, $02, $07, $04

Back

$04