Basic Knowledge Required

A basic Knowledge of the following items is required for use of this section:
(Use of the diagnostic procedures will be difficult without this basic Knowledge.)

Basic Electrical Circuits
An understanding of the following concepts is required:
- The basic theory of electricity
- The meaning of the following terms:
- The voltage
- The current (amperes)
- The resistance (ohms)
- The result of an open or shorted wire in a circuit
- How to read and understand a wiring diagram
Use Of Circuit Testing Tools
An understanding of the following concepts is required:

- The use of a Digital Multimeter (DMM) Knowledge of the controls and their correct use is required.

IMPORTANT: Use a solid, unpainted chassis ground or the negative battery cable when measuring the resistance to ground.

- How to measure the value of the following items:
- The voltage
- The resistance
- The current

- The correct use of jumper wires for the following purposes:
- Bypassing components
- Testing circuits

Refer to the introduction of Troubleshooting Procedures refer to "Diagnostic Aids" under Diagrams for a review of basic electrical troubleshooting Knowledge.