Basic Knowledge Required

IMPORTANT: When measuring the resistance to ground of a circuit or component, use a solid, unpainted chassis ground or the negative battery cable terminal.

A basic knowledge of the following items is important. (Without this basic knowledge, it will be difficult to use the diagnostic procedures).

BASIC ELECTRICAL CIRCUITS
^ The basic theory of electricity
^ The meaning of the following terms:
- Voltage
- Current (amps)
- Resistance (ohms)

^ Understanding of what happens in a circuit with an open or shorted wire
^ How to read and understand a wiring diagram

USE OF CIRCUIT TESTING TOOLS
^ How to use jumper wires to bypass components in order to test circuits
^ How to use the High Impedance Multimeter (DMM) J 39200
^ How to measure the following quantities:
- Voltage
- Resistance
- Current
^ How to use the meter controls