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Troubleshooting with a Test Lamp

Special Tools 

EL-35616-210  Test Light - Probe Kit

NOTE: Always use the proper replacement bulb (6614F  Test Light Bulb (not LED)).

For equivalent regional tools, refer to Special Tools .

CAUTION: Refer to Test Probe Caution .

A test lamp can simply and quickly test a low impedance circuit for voltage. A Digital Multimeter (DMM) should be used instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp shows whether voltage is present if the impedance is low enough, a DMM indicates how much voltage is present. In other words, if there is not enough current, the test lamp will not illuminate even though voltage is present.

The EL-35616-210  kit is Micro-Pack compatible and includes a 12 V test lamp.

To properly operate this tool use the following procedures.

When testing for voltage:

  1. Attach one lead to ground.
  2. Touch the other lead to various points along the circuit where voltage should be present.
  3. When the bulb illuminates, there is voltage at the point being tested.

When testing for ground:

  1. Attach one lead to battery positive voltage.
  2. Touch the other lead to various points along the circuit where ground should be present.
  3. When the bulb illuminates, there is ground at the point being tested.
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