Exam 46: Electronics and Computer Systems Service

A digital multimeter (DMM) is the instrument used to measure electricity in electronic circuits. A(n) ____________________ must be used to perform tests on these systems.

OBD II scan tools are powered through the ____________________ and do not require an external power source.

Which of the following is LEAST-Likely a criteria found on the scan tool?

While having a discussion, Technician A says that adaptive memory learns faster if the computer's memory is erased first. Technician B says that if memory is erased, it will take longer for the system to adapt. Who is correct?

A defective or misadjusted TPS can send an excessive voltage to the computer that is interpreted as ____.

A(n) ____________________ in the service library provides a step-by-step diagnostic procedure to follow when troubleshooting hard-fault problems

All of the following statements are true EXCEPT:

What points should you bear in mind when using a scan tool to diagnose driveability problems while watching fuel trim?

Which of the following is LEAST-Likely an actuator?

Active sensors do not generate their own signal.

What is the difference between a hard fault and an intermittent fault?

A scan tool is a portable computer that reads data from the on-board computer.

Under what circumstances would a no-start condition occur?

The part MOST-Likely used to compare the reading inside the engine to an absolute pressure calibration in the computer is the:

An oscilloscope capable of displaying four waveforms is called a ____.

An ECT sensor is a thermistor; it will have lower resistance as coolant temperature rises. This is called a(n) ____________________ thermistor.

Bidirectional means that the scan tool can read data but cannot give commands to the computer.

To check a meter to see if it has high impedance, turn the selector to the direct current (DC) volts position.

What are the advantages of DMMs?

To check a meter to see if it has high impedance, turn the selector to the ____________________ volts position.