Exam 10: Vehicle Communication Networksvehicle Multiplexing Diagnostics

What does the acronym MUX stand for?

What type of technology allows several modules from different manufacturers to be connected using a standardized radio transmission?

How can an open circuit fault with either the CAN B (+) or the  CAN B (−) circuit be located?

Controller Area Network CAN B bus diagnostics is being discussed. Technician A says some modules do not set specific codes that isolate the type of fault. Technician B says if the fault code indicates both CAN B+ and CAN B- circuits are low or high, a total bus failure has occurred. Who is correct?

Each computer is connected to the data bus is called a mole.

The best method of determining proper voltage on the J1850 Bus system is with a(n) ____.

Controller Area Network (CAN) bus diagnostics is being discussed. Technician A says the first step is to verify the customers complaint. Technician B says you must determine which bus network is at fault. Who is correct?

Vehicles that use ISO-K for the communication connection between the module and the scan tool may have their own ____ from individual terminals in the DLC to the module.

Bluetooth technology allows several modules from different manufacturers to be connected using a standard high definition transmission.

The LIN bus voltage reads normal with the slave module disconnected, but then reads 0 volt when it is reconnected. What can be the cause?

Technician A says modules on the Media Oriented System Transport (MOST) data bus use an LED, photodiode, and a MOST transceiver to communicate with light signals. Technician B says the Media Oriented System Transport (MOST) system uses fiber optics to transmit data at an extremely fast rate. Who is correct?

The Society of Automotive Engineers (SAE) has defined different classes of protocols. What are the classes based on?

What is Multiplexing (MUX)?

Wireless networks require the use of one wire to transmit information.

Completion question _______________.

Technician A says the circuitry of the CAN bus usually consists of a pair of twisted wires. Technician B says for digital data to transfer, the CAN bus voltage is simultaneously pulled high on one circuit and pulled low on the other. Who is correct?

Some ____ provide a vehicle module scan function that will query all of the modules on the bus to respond and then list those that did reply.

The ____ network has all of the modules connected to a central point.

Diagnosing the LIN bus is being discussed. Technician A says if 0 volt is indicated by the voltmeter or lab scope when the slave module is disconnected, the cause could be a faulty master module. Technician B says this can be caused by an open circuit between the master and slave module connector. Who is correct?

What is the purpose of the vehicle module scan report?