Scan Tools

Question 1

A scan tool is connected through a DLC. This acronym stands for

a) Data Link Connector
b) Diagnostic Line Cable
c) Data Link Cable
d) Digital Link Communication

Answer 1

a) Data Link Connector

Question 2

The VIN may be helpful to input vehicle information because it contains the:

a) type of network connection
b) number of control modules on the circuit
c) vehicle model year and engine code
d) option codes

Answer 2

c) vehicle model year and engine code

Question 3

A hard code refers to a fault:

a) caused by hardware failure
b) that is present at the time of testing
c) that will be difficult to diagnose
d) in the scan tool data reference circuit

Answer 3

b) that is present at the time of testing

Question 4

All DTCs should be cleared:

a) when instructed by service information
b) after a repair has been completed
c) before attempting to repair a vehicle
d) both a and b are correct

Answer 4

d) both a and b are correct

Question 5

List five (5) functions for which you can use scan tools

Answer 5

a) accessing diagnostic trouble codes
b) activating function tests
c) resetting warning systems
d) control module relearn procedures
e) setting customer preferences

Question 6

List the three (3) functional blocks of a vehicle computer system

Answer 6

a) inputs
b) control
c) outputs

Question 7

When is a default value used by the controller?

Answer 7

When the controller determines that a sensor provides false data