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Parasitic draw help!

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Old 11-11-2020, 10:13 PM
Rmeye12's Avatar
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Default Parasitic draw help! Room fuse and AT

Hello everyone I have a 2015 mazda cx5 GT with bose. I recently just bought a new battery because if I leave my car sitting for about 2 days it barely turns over. There is nothing aftermarket. There is a mazda oem remote start. I have a multimeter and have preformed a parasitic draw test. It was reading 0.97-1.01 I pulled all the fuses and the ROOM fuse dropped it to .62 and then I would pull the AT fuse and it would go to .32 which I think is more normal for the GT models. Does anyone know what could be causing this on both those circuits?! The remote start? Thr Bluetooth module? Any help on next steps would be greatly appreciated.
 

Last edited by Rmeye12; 11-11-2020 at 10:23 PM. Reason: Better understanding
  #2  
Old 11-12-2020, 12:53 PM
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Originally Posted by Rmeye12
Hello everyone I have a 2015 mazda cx5 GT with bose. I recently just bought a new battery because if I leave my car sitting for about 2 days it barely turns over. There is nothing aftermarket. There is a mazda oem remote start. I have a multimeter and have preformed a parasitic draw test. It was reading 0.97-1.01 I pulled all the fuses and the ROOM fuse dropped it to .62 and then I would pull the AT fuse and it would go to .32 which I think is more normal for the GT models. Does anyone know what could be causing this on both those circuits?! The remote start? Thr Bluetooth module? Any help on next steps would be greatly appreciated.
new info; pulled Bluetooth module, no difference, pulled amp no different pulled remote start antenna no difference .. but disconnected the body control module next to fuse box and as soon as I disconnected the middle connecter out of all 3 of them. It dropped by .6 and is now within normal ranges when security light blinks goes from .4 to .5.. any idea of what the main white middle connector of body control module goes to? Or if I should replace the bcm?
 
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Old 11-18-2020, 02:19 PM
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Does this help? Mazda CX-5 Service & Repair Manual - Front Body Control Module (Fbcm) Inspection - Data Network

Looks like it's got a table of all the connector wires, along with the amount of voltage each require.
 
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