Mazda CX-9 This larger SUV adds a V6 option, as well as more cargo room, to the CX-7 option.

I-ELOOP - DC to DC converter

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Old Aug 3, 2025 | 06:27 AM
  #11  
conrad842025's Avatar
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Originally Posted by Georged747
Also having troubles with i-eloop on a 2017 cx9. Has anybody successfully fixed theirs?

I have changed the capacitor with a 2nd hand unit but still not working. If i start car in the morning comes up with error. Let it idle for a minute or 2. Switch off and back on, no errors but istop not working. Has me baffled.

George

Edit: the capacitor seems to be working. I tried the old one again and that definitely doesn't work. Istop Won't go green when trying to reset the system. The new one does all the procedures up until you have to start the car and wait for the istop grčnlen to stop flashing but doesn't stop flashing. Anywhere else i should be looking?
If I may ask, how much did the new capacitor set you back? I just purchased a 2nd hand CX-9 and whilst the car is in otherwise excellent condition, im having errors for the i-eloop & i-start system. Solid warning lights on eloop and flashing istart. iStart worked for about a day, e-loop light came on solid not long after picking up the car.
 
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Old Jan 28, 2026 | 02:02 AM
  #12  
guntars's Avatar
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From: UK
Default Dc dc converter

Morning All!
I have Mazda 6 2.2d skyactive 2018. A month ago pop up charging system malfunction. In the service change new alternator+ belt. (Alternator was faulty). Buy used from ebay dc dc converter. 3 weeks drive fine, and pop up same error. Change battery (was original battery 72 ah. which still was good condition) to 95 ah. After 20 minutes drive pop up again same error. Electrician check, brand new battery not charging up.... Computer shows dc dc converter problem. Buy another dc dc converter from ebay. Drive 2 miles and pop up again charging system malfunction. Take back to electrician, the difference is now battery is charging, alternator charging, but error still there. Computer shows dc dc converter. I don`t have capasitor and i-eloop.

Can someone help with
 
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