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Old 09-07-2017, 06:02 AM   #1
06YarisRS
 
Drives: 2006 Yaris RS
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Location: New Brunswick, Canada
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Seeking Advice on Alternator or Repair

Hi.

I have the flickering battery light. My alternator puts out 13.9 - 14 V at idle and no charging problems but the daytime running lights are off. Member WeeYari confirmed that the DRLs can be off with a faulty voltage regulator. I read about the TSB to remove and clean the voltage regulator. Mine was very dirty and a lot of corrosion was present. After removing the regulator from the alternator and a thorough cleaning, I reinstalled and still have the battery light lit and no DRLs. I also cleaned the connector and it had quite a bit of corrosion on it too. The problem here is that if it is wiring/connector, I'm not sure how to test that.

I expect that this alternator is the original. I can pick up a voltage regulator for around $35.00 USD on eBay (knock off, not Toyota - or one of its OEM suppliers - for sure).

Would you recommend replacing the voltage regulator or just replacing with a reman alternator? I haven't priced locally, but CarQuest usually has good pricing and lifetime replacement warranty.


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Last edited by 06YarisRS; 09-09-2017 at 10:53 PM.
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Old 09-07-2017, 10:51 AM   #2
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You'd have to check the condition of the commutator and brushes. If they're in good shape, I'd just change the regulator.
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Old 09-07-2017, 12:53 PM   #3
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You'd have to check the condition of the commutator and brushes. If they're in good shape, I'd just change the regulator.
Thanks BlueVitz. I ended picking up a reman locally. With our school discount it was around $200.00 CAD. I didn't want to order a regulator on eBay and wait. This is probably more expensive in the long run but I'm not the most patient sort.
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Old 09-07-2017, 08:28 PM   #4
06YarisRS
 
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No more battery light!

Installed a reman alternator. Job was much easier and quick tonight as I'd loosened and lubed everything last night. So happy not to have the battery light on.


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Old 09-07-2017, 10:58 PM   #5
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Old 09-08-2017, 03:19 PM   #6
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So happy not to have the battery light on.
...and the DRLs are working again as well right?


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Old 09-08-2017, 10:05 PM   #7
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Haha! Thanks!
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Old 09-08-2017, 10:11 PM   #8
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...and the DRLs are working again as well right?


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They are indeed, WeeYari!

I've gotta say, I think I'm really going to enjoy working on this little buggy. It is so easy, especially when compared to some of the other vehicles I've owned.

Tomorrow's project is painting the liftgate and bumper. I've decided to do it myself. I save between $300.00 and $400.00 doing so. I put the savings toward complete new brakes in the back. ordered drums, shoes, hardware kit, auto adjuster and wheel cylinders - all under $100.00 CAD. Gotta love Rock Auto.
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