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05-22-2011, 02:09 PM | #1 |
Drives: 2007 Toyota Yaris HB Join Date: May 2011
Location: Bridgeport
Posts: 5
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Yaris battery light on...why??
took it to autozone, but we can't determine the cold cranking amps on the battery. i have a 2007 yaris hb, since 2006 (about 105k miles on it). the car starts, the radio runs, the lights work fine, but the battery light is on (red - which indicates to go to dealer - which is closed today, of course). how can the light be on but the car runs fine? does anyone know the cc amps on the original battery? not in manual, on their website or anywhere! amazing, i've found the one thing google can't find!
thanks... |
05-22-2011, 02:19 PM | #2 |
ekodrvr
Drives: 2002 white subaru impreza wrx Join Date: Feb 2009
Location: Spokane, WA
Posts: 776
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normally, that light only comes on when one of three things is bad... target the battery, should be ~500cca IIRC... the second option is to check the alternator... third is to check your battery connections for corrosion... one other possibility, that autozone people might miss, is the serpentine belt there?
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05-22-2011, 02:19 PM | #3 |
Drives: '08 LB MT Bayou Join Date: Oct 2008
Location: Colorado
Posts: 1,671
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Maybe your alternator is having a problem.
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05-22-2011, 02:22 PM | #4 |
Only Happy When it Rains
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i didn't even know there was a battery light. That is just weird.
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Colin Chapman disciple |
05-22-2011, 02:24 PM | #5 |
ekodrvr
Drives: 2002 white subaru impreza wrx Join Date: Feb 2009
Location: Spokane, WA
Posts: 776
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all cars that i have ever come across have one... comes on when you first turn the car on, then turns off when the alt. picks up...
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05-22-2011, 02:25 PM | #6 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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There's a known/common problem with 07-08's with the voltage regulator within the alternator corroding and casing the light to come on.
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05-22-2011, 02:27 PM | #7 |
Drives: 2007 Yaris Sedan Join Date: Apr 2009
Location: CT
Posts: 271
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05-22-2011, 02:28 PM | #8 | |
ekodrvr
Drives: 2002 white subaru impreza wrx Join Date: Feb 2009
Location: Spokane, WA
Posts: 776
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Quote:
go with scott's answer for the time being, and if that is not it, then we follow the trouble tree...
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if you want to see my plans for this car, check out here... http://www.cardomain.com/ride/3154316 i like this smiley... |
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05-22-2011, 02:31 PM | #9 |
Drives: 2007 Toyota Yaris HB Join Date: May 2011
Location: Bridgeport
Posts: 5
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ok...thanks...
i dont plan to drive it anymore today...and my mechanic, thankfully, is half block away. i will have to go first thing in AM. even though autozone does free testing, i'm afraid to drive it back there (a couple miles away) and have it conk out on me.
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05-22-2011, 02:36 PM | #10 |
ekodrvr
Drives: 2002 white subaru impreza wrx Join Date: Feb 2009
Location: Spokane, WA
Posts: 776
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i would mention the TSB about the voltage regulator to the mechanic... might save him some time...
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05-22-2011, 02:45 PM | #11 |
Drives: 2007 Toyota Yaris HB Join Date: May 2011
Location: Bridgeport
Posts: 5
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yup, already wrote that down
i also plan to ask him why this wasn't seen (if it is indeed corrosion) when i had my 100k tune up
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05-22-2011, 02:49 PM | #12 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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He would only have seen it if he completely disassembled the alternator. There's a thread on here where I posted pictures of one completely disassembled.
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05-22-2011, 03:04 PM | #13 | |
Drives: 2007 Toyota Yaris HB Join Date: May 2011
Location: Bridgeport
Posts: 5
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Quote:
i'll report back in the afternoon with any findings...i hope i can drive it to work- shoot! |
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05-22-2011, 03:13 PM | #14 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,740
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I've been dealing with this for nearly 3 years with my '06.
Whenever there is a heavy rainfall, or very dense fog, my battery light comes on. It willl always go out again when conditions dry up. I have a spare alternator on stand-by just waiting for the day the voltage regulator finally gives up for good. Had the spare for almost a year now but the original just wont die. BTW, is your light on solid, or does it flicker? Mine flilckers. If it is on solid, then you may actually have another issue other than the regulator.
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05-23-2011, 10:24 PM | #15 |
Drives: Polar White Liftback Join Date: Dec 2010
Location: Queens, NY
Posts: 4
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I have the same car and the same issue. I'm pretty certain that it's the Voltage Regulator. Can anyone recommend a good site to order from?
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Tags |
cold cranking amps, yaris 2007 |
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