Exam 10: Vehicle Communication Networksvehicle Multiplexing Diagnostics

Technician A says J1850 protocol is the class B standard for OBD II. Technician B says the J1850 standard allows for four different versions based on baud rate. Who is correct?

Class C is a(n) ____ protocol with a baud rate between 125 kb/s and 1,000 kb/s, used for functions that require real-time control.

All of the following are facts about Controller Area Network (CAN) bus diagnostics, EXCEPT :

Multiplexing (MUX) wiring systems use bus data links that connect modules together.

What organization has defined different classes of protocols according to their baud rate?

Technician A says normal voltages on the LIN bus is up to 12 volts, which is pulled low during communications. Technician B says in the LIN bus, if a slave module is disconnected from the master module and the ignition switch is in the RUN position, the reading will be about 9.5 volts. Who is correct?

Those systems such as engine controls and antilock brakes that require data at a faster rate will communicate on the ____.

Repairs to the data bus networks are being discussed. Technician A says to crimp the wires then cover with heat shrink tube. Technician B says any new wires added must be the same length as that removed. Who is correct?

The J1962 breakout box (BOB) provides:

A(n) ____ is a language computers use to communicate with one another over the data bus.

The class A bus system is a(n) ____ bus.

The ISO-K bus protocol allows for bidirectional communication on a single wire.

____ have increased system reliability through the reduction of circuits and improved efficiency by less power demands and more accurate control.

The media-oriented system transport (MOST) bus uses ____to transmit data at a speed of up to 25 megabits per second (25 Mb/s).

What module is used where all three CAN bus networks connect together?

What is each computer that is connected to the data bus is called?

The local interconnect network (LIN) bus is a supplemental bus network that is used along with the vehicle's main ____ system.

The ring (or loop) network has the modules wired in ________.

Network ____ refers to how the modules are connected on the network.

Multiplexing (MUX) networks allow several devices to share signals on a common conductor.