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07-24-2010, 09:52 PM | #1 |
Drives: 2008 Yaris Join Date: Jul 2010
Location: USA
Posts: 7
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tire pressure light goes on and off, on and off
I have a 2008 Yaris and recently the tire pressure light comes on while driving. It stays on for a several seconds or sometimes a couple of minutes, then turns off. Then later it will turn on again for a little bit, then turn off, and so on. It is pretty random. I checked the tires and they are 32psi each time. The light doesn't blink, it is solid.
Is there anything I can do before taking it into the dealer? I don't want them to charge me $100 for something minor that I can deal with myself. Thanks |
07-24-2010, 10:27 PM | #2 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Check out this post for info on how to make the TPWS ECU tell you its issue by flashes of the TPWS light:
http://www.yarisworld.com/forums/sho...8&postcount=11 |
07-25-2010, 08:00 PM | #3 | |
Drives: 2008 Yaris Join Date: Jul 2010
Location: USA
Posts: 7
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Quote:
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07-25-2010, 08:32 PM | #4 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Unfortunately there's nothing quite that easy. The connector is the OBD (diagnostic) connector under the left end of the dash, right by the hood release lever.
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07-25-2010, 08:40 PM | #5 |
Drives: 2008 Yaris Join Date: Jul 2010
Location: USA
Posts: 7
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Ok thanks for your help. I have a related question. I will need to have the tires rotated soon. Would that cause the light to come on again, after I fix this current problem?
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07-25-2010, 08:47 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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Quote:
Also, as an FYI many cars monitor the spare tire (which most people forget to check on a regular basis). The Yaris though, does not have a sensor in the spare, so you are just concerned with the four main tires for this issue. |
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07-28-2010, 01:20 AM | #7 |
CERTIFIED ASE/SUBARU TECH
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the light flashes because a tpms sensor[s] has a weak battery and needs to be replaced or re-learned to the tpms unit.
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07-29-2010, 11:53 AM | #8 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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How the tire pressure?
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07-30-2010, 03:58 AM | #9 |
Drives: 2008 Yaris Join Date: Jul 2010
Location: USA
Posts: 7
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The light now comes on and stays on for the entire time. The tires are 34 psi and stable.
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