Chapter 20 POWERPOINT

Use the textbook to define these Technical Terms:

1. continuity

2. digital multimeter

3. flux

4. inductive pickup

5. load tester

6. noid light

7. oscilloscope

8. scan tool

9. soldering

10. test light

11. tire pressure sensor re-calibration tool

Use the textbook to answer these discussion questions:

1. Identify 7 tools that are commonly used during electrical repairs.

Read the chapter summary below:

Summary

■ Soldering tools are needed to make wiring repairs. Soldering is the best method of joining wires and terminals.

■ Wire stripper pliers are used to pull insulation from wires.

■ A noid light provides a quick way of checking a circuit for power or continuity.

■ A multimeter is used to measure voltage, current, and resistance. An analog multimeter uses a conventional needle to show readings. A digital multimeter uses vacuum fluorescent or liquid crystal displays to give readouts.

■ Most manufacturers warn against using a test light to test some electronic circuits. They can draw too much current and damage delicate electronic components.

■ An inductive wire tracer uses a signal generator to produce a weak ac signal in the vehicle’s wiring. The probe can then be used to find internal breaks or disconnected wires.

■ An oscilloscope is a diagnostic tool that displays a line pattern, or trace, representing circuit voltages in relation to time.

■ Test equipment for charging and starting systems includes a battery tester, load tester, and charging system analyzer.

■ System-specific test equipment includes alarm testers, keyless entry testers, and park assist testers.