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SVT Shelby GT500
Multimeter Weirdness
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<blockquote data-quote="RedVenom48" data-source="post: 16299224" data-attributes="member: 166576"><p>On newer cars with modules controlling different aspects of the car, it should be considered normal for what you are displaying. Thats the ECUs staying awake when the key is turned off. Some need time to save settings, data etc. Some are kept on to make restarting easier if its done in a certain amount of time.</p><p></p><p>As the internal timer starts counting to predetermined points after last ignition cycle, the ecu's will start going into sleep mode to preserve the battery. On Lexus vehicles with all the computers we are running, a normal off and sleeping current draw is typically 50mA. </p><p></p><p>If Im reading the settings on your meter correctly (.15 in the mA setting) you're less than 1 mA draw once the ecu is shutting down to sleep mode.</p></blockquote><p></p>
[QUOTE="RedVenom48, post: 16299224, member: 166576"] On newer cars with modules controlling different aspects of the car, it should be considered normal for what you are displaying. Thats the ECUs staying awake when the key is turned off. Some need time to save settings, data etc. Some are kept on to make restarting easier if its done in a certain amount of time. As the internal timer starts counting to predetermined points after last ignition cycle, the ecu's will start going into sleep mode to preserve the battery. On Lexus vehicles with all the computers we are running, a normal off and sleeping current draw is typically 50mA. If Im reading the settings on your meter correctly (.15 in the mA setting) you're less than 1 mA draw once the ecu is shutting down to sleep mode. [/QUOTE]
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