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Author Topic: Parasitic Current Draw (Milliamperes Draw Test) On Harley-Davidson  (Read 1418 times)

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June 03, 2019, 12:56:12 PM
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HDBitchin

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Milliampere Draw Test
• Be sure accessories are not wired so they stay on at all times. This condition could drain battery completely if vehicle is parked for a long time. Check for this by connecting ammeter between negative battery terminal and battery.
• TSM/TSSM/HFSM will continue to draw 16-25 mA for 30 seconds after ignition is turned OFF. Any disruption and reconnection of battery power, such as disconnecting the battery to place a meter in series, will cause TSM/TSSM/HFSM to draw 16-25 mA for 30 seconds.
• Disconnect siren during Milliampere Draw Test.
 Connect ammeter between negative battery terminal and battery. With this arrangement, you will also pick up any regulator drain.

With ignition switch turned to OFF and all lights and accessories off, observe current reading.
a. Refer to the below attachment. Add regulator draw to appropriate value for the other components. If sum is less than reading observed on ammeter, draw is within limits.
b. A higher reading indicates excessive current draw. Any accessories must be considered and checked for excessive drain.
HDBitchin aka Tank

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June 03, 2019, 12:59:14 PM
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HDBitchin

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Here is a video on the subject of parasitic current draw from Fix My Hog.


HDBitchin aka Tank

When shopping for anything look for Made in the USA and save American jobs and families

Worthy of Being a DIY Tip  Worthy of Being a DIY Tip  x 1 Informative Informative x 1 View List

 




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