Week #? - Accessory Boards (aka Small Boards) Flashcards
The specification that indicates how fine a measurement can be made by a DMM is known as what?
Resolution
When the resistance and continuity test are made on electronic circuit components, should the circuit being tested be open, closed or energized?
Open
True or False: Snapshot test mode can only analyze a historic code.
False
What J1587 identifier is equivalent to a J1939 suspect parameter number (SPN)?
PID
When a DMM is set to read AC, what term is used to describe the averaging of potential difference to produce a meter reading?
Root mean square (rms)
What methods are commonly used to upgrade the software on handheld ESTs?
Upgrade the cartridge PROM chips or cards
What is meant by the terms “networking”?
The term NETWORKING is used generally to refer to two or more computer systems that can communicate with each other. On a truck, the data bus or backbone is the networking medium. The Internet is one means that enables PCs to network.
True or False: The F-pin on the post-2013 J1939 data connector is smaller than that on a pre-2013 data connector.
True
True or False: Most DMMs have an accuracy factor that is within 0.1 percent of the reading.
True
What port on an HH-EST data connector is used to connect the printer?
RS-232 port
What color is the 2013 J1939 data connector?
Green
Which of the following cannot usually be performed by a generic HH-EST?
a. proprietary data programming
b. erase historic fault codes
c. snapshot testing
d. customer data programming
a. proprietary data programming
What EST is used to read flash codes?
Dash diagnostic lights
How many counts of resolution can be displayed by a 41/2-digit DMM?
19,999
What is the correct means of electronically coupling a HH-EST with a truck chassis ECM?
Chassis data connector
What is the J1939 equivalent of the J1587 MID?
SA
What is the difference between an active code and a historic code?
An ACTIVE code exists at the time of viewing: A HISTORIC code is INACTIVE at the time of viewing and is logged in memory.
What is the appropriate EST for performing a resistance test on a potentiometer-type TPS isolated from its circuit?
DMM
True or False: J1587 FMIs are identical in number to J1939 FMIs.
False
True or False: The post-2013 J1939 data connector is backward compatible with pre-2013 data connectors.
True
What is meant by the term GUI? Give some examples.
A GUI is a graphical user interface: its best example is in the pictorial ICONs used in Windows, and Mac software.
What component is inserted into terminal sockets to enable testing by DMM probes and minimize physical damage?
Terminal dummies
When verifying the signal produced by a potentiometer-type TPS, the DMM test mode selected should be what?
V-AC
True or False: A J1939 SA is a module with an address on the data bus.
True
How is the output (signal) of a pulse generator rotational speed sensor measured?
V-AC
True or False: The accuracy of an analog meter is usually no better than 3 percent.
True
True or False: DMM test lead resistance should never exceed 1.0 ohm.
True
Of the following PC components, which would usually be described as a peripheral: A CD drive, a modem, a digital camera, or speakers?
A modem
When reading the open TPS circuite, which FMI should be displayed?
5
What do you call the component that can be safely inserted into electronic circuits so they can be tested without interrupting them?
Breakout box
What electrical voltage value does the DMM output when in diode test mode?
0.6V
Which of the following procedures cannot be performed using a PC and the OEM software?
a. solenoid cycle tests
b. permanently erase active fault codes
c. erase historic fault codes
d. customer data programming
b. permanently erase active fault codes
True or False: Using the snapshot test mode when using a handheld reader/programmer to troubleshoot an intermittently occurring fault code will help identify the conditions that produced the code.
True
