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EL-39200 Digital Multimeter (DMM)
For equivalent regional tools, refer to Special Tools .
Danger: This procedure should not be performed on high-voltage circuits. Performing this procedure on high-voltage circuits may result in serious injury or death.
Perform the following procedures while wiggling the harness from side to side. Continue this at convenient points (about 6 inches apart) while watching the test equipment.
If the fault is not identified, perform the procedure below using the MIN MAX feature on the EL-39200 DMM . This feature allows you to manipulate the circuit without having to watch the DMM. The DMM will generate an audible tone when a change is detected.
Note: The DMM must be used to perform the following procedure since the DMM can monitor current, resistance or voltage while recording the minimum (MIN), and maximum (MAX) values measured.
Note: The 100 ms RECORD mode is the length of time an input must stay at a new value in order to record the full change.
• | If the variation between the recorded MIN and MAX voltage values is 1 V or greater an intermittent open or high resistance condition exists. Repair the condition as necessary. |
• | If the variation between the recorded MIN and MAX voltage values is less than 1 V an intermittent open or high resistance condition does not exist. |
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