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Toyota Highlander Battery Constantly Drains Up. - Car Talk - Nairaland

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Toyota Highlander Battery Constantly Drains Up. by Giftedness20: 7:00am On Nov 28, 2023
I bought a 2010 highlander in July of 2021 from a friend in the USA. The problem has always been the battery that keeps draining when parked for like one week. Have changed battery like 3 times. I have also changed the alternator and still same problem stills shows up. What could be the fault.
Note :it has a tracker installed.
Re: Toyota Highlander Battery Constantly Drains Up. by sunnymighty(m): 7:18am On Nov 28, 2023
Giftedness20:
I bought a 2010 highlander in July of 2021 from a friend in the USA. The problem has always been the battery that keeps draining when parked for like one week. Have changed battery like 3 times. I have also changed the alternator and still same problem stills shows up. What could be the fault.
Note :it has a tracker installed.

Why not scan for error codes.
Re: Toyota Highlander Battery Constantly Drains Up. by aieromon(m): 8:08am On Nov 28, 2023
Giftedness20:
I bought a 2010 highlander in July of 2021 from a friend in the USA. The problem has always been the battery that keeps draining when parked for like one week. Have changed battery like 3 times. I have also changed the alternator and still same problem stills shows up. What could be the fault.
Note :it has a tracker installed.

Parasitic drain. Get a competent electrician to trace the drain.
Re: Toyota Highlander Battery Constantly Drains Up. by jceesquare(m): 8:59am On Nov 28, 2023
sunnymighty:


Why not scan for error codes.
And what would be the scan codes?
That the car has one accessory powered on when car is not running?
Nairalanders don turn code readers to otumopo device.
Giftedness20:
I bought a 2010 highlander in July of 2021 from a friend in the USA. The problem has always been the battery that keeps draining when parked for like one week. Have changed battery like 3 times. I have also changed the alternator and still same problem stills shows up. What could be the fault.
Note :it has a tracker installed.
You have a parasitic draw as suggested above (could actually be caused by the tracker since battery drains out after 1 week). Get an electrician with a test lamp and multimeter to perform amperage draw test on every electrical component on the car.

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