167 Copyright by Goodheart-Willcox Co., Inc. Aft er studying this chapter, you will be able to: • Use a systematic approach to fi nd and correct electrical problems. • Explain causes of basic circuit problems given their symptoms. • Use testing devices to check component operation. • Use a multimeter to measure circuit voltage, voltage drop, resistance, and amperage. • Test basic electric and electronic components. ammeter auto ranging contact cleaner electrical diagnosis electrical solvent freeze spray grounded circuit hot wire short to ground infi nite resistance intermittent problem jumper wire ohmmeter open circuit short circuit test light transducer switch voltage drop measurement voltmeter zero resistance Technical Terms Basic Electrical Tests Chapter 9