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Published byJasmin Lynn Chandler Modified over 9 years ago
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DIAGNOSTIC TEST TOOLS
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JUMPER WIRES n USED FOR TEST PURPOSES n ABOUT 6”, 12” 3 FT, AND 15 FT. n LARGE ENOUGH GAUGE n DIFFERENT TERMINAL ENDS n ALLIGATOR CLIPS
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TEST LIGHTS n NON POWERED LIGHT –TELLS PRESENCE OF VOLTAGE –EASY AND QUICK TO USE –LOW INTERNAL IMPEDANCE n SELF POWERED LIGHT (CONTINUITY TESTER) –WORKS LIKE OHMMETER –LOW COST
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DIGITAL VOLT- OHMMETER –10 MEG OHM IMPEDANCE –DIGITAL READOUT VERY PRECISE –MULTI-METER (MULTI-USES) –DIODE TESTER –AUDIBLE CONTINUITY TESTER –OVERRANGE INDICATOR
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DVOM VOLTAGE TESTS –Power Switch –Polarity –Low battery –Hook across (parallel) device or circuit being tested –Adjust to most accurate range
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DVOM AMPERAGE TESTS –Fuse Protection –Hook in series with circuit –Function selector adjust to most accurate range –Maximum amperage of meter –NOTE: DOUBLE CHECK YOUR CONNECTIONS BEFORE YOU DO TEST. CHECK YOUR SETUP!!
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DVOM OHMMETER TESTS –Isolate component to be tested –fuse protected –Function selector to most accurate range –Start with highest range and turn down range until most accurate reading –Over-range indicator
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TEST CONNECTIONS
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Reading the DVOM Handout
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LOGIC PROBE n TELLS PRESENCE OF VOLTAGE n TELLS PRESENCE OF GROUND (LOW VOLTAGE) n WILL NOT HURT COMPUTER CIRCUITS n LIGHT AND AUDIBLE TYPE
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COMPUTER SCANNER n Retrieve Trouble Codes n Display Data Stream n Perform System Function Tests –Reset Instrumentation Lights –Operate Systems for Test Purposes –Adjustment of Engine Control Parameters
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Later Dudes!
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