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GI-52 < BASIC INSPECTION > SERVICE INFORMATION FOR ELECTRICAL INCIDENT Note in the illustration that there is an excessive 4.1 volt drop between the battery and the bulb. Measuring Voltage Drop — Steb-by-Step • The step-by-step method is most useful for isolating excessive drops in low voltage systems (such as those in “Computer Controlled Systems”). • Circuits in the “Computer Controlled System” operate on very low amperage. system. Such resistance variation may be caused by poor connection, improper installation, improper wire • The step by step voltage drop test can identify a component or wire with too much resistance. CONTROL UNIT CIRCUIT TEST System Description CASE 1 SGI974 SAIA0258E MGI034A |