Vehicle Battery & Alternator Diagnostics

What is a 'Millivolt Voltage Drop Test' across automotive blade fuses used to locate during diagnostic troubleshooting?

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 Correct IncorrectMeasuring millivolts across the exposed test points on a fuse reveals which specific circuit is actively drawing current without pulling fuses and waking up vehicle network computers.

What is a 'Millivolt Voltage Drop Test' across automotive blade fuses used to locate during diagnostic troubleshooting?

• To pinpoint which specific fused circuit has parasitic current draw without waking sleeping computer modules
• To measure the speed of the cooling fan
• To see if the plastic fuse body is melted
• To test the horn volume