Exam 8: Introduction to the Body Computerbody Computer System Diagnosis

Describe the operation of logic gates.

Technician A says RAM will store temporary information that can be read from or written to by the MP . Technician B says ROM can be written to and changed by the computer. Who is correct?

What is the brain of the computer?

List the four basic operational functions of the computer.

What function of the scan tool allows for testing the actuators?

Using the bidirectional control function of the scan tool fails to make an actuator operate; which of the following could be the cause:

Technician A says high-side drivers control the ground side of the circuit. Technician B says high-side drivers may be capable of determining circuit faults. Who is correct?

Technician A says the computer will make control commands to various output devices during the output function. Technician B says the computer uses the input information and compares it to programmed instructions during the processing function.

Technician A says it is a good practice to flash all controllers to the latest version. Technician B says the J2534-1 pass-thru device is a gateway between the vehicle's on-board computers and the shop's PC or laptop. Who is correct?

Technician A says nonvolatile RAM will lose its memory if removed from its power source. Technician B says volatile RAM is not erased when it is disconnected from its power source. Who is correct?

The storage function of the computer converts analog to digital signals.

The AND gate has how many inputs and outputs?

Which of the following is an actuator?

A ____ is a special tool that connects to the computer connectors to allow the technician to test circuits, sensors, and actuators by providing test points.

A(n) ____ is a transistor device that controls the current in the output circuit.

The _______________ is a crystal that electrically vibrates when subjected to current at certain voltage levels.

Technician A says open circuit testing of the BCM power supply will indicate if there is high resistance in the circuit. Technician B says that open circuit testing has the potential to mislead to improper diagnostics. Who is correct?

List three types of computer memory.

____ memory is the ability of the computer system to store changing values in order to correct operating characteristics.

Technician A says a NOT gate simply reverses binary ones to zeros and vice versa. Technician B says AND gate operation is similar to two switches in series to a load. Who is correct?