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#1 |
![]() ![]() ![]() ![]() ![]() Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
|
yaris voltage issue
Hey all,
Ive got this odd electrical issue and im not sure exactpy where to start. Recently ky car has had the battery light on. Upon further inspection using my obd2 scanner my ECM voltage was 11.23v. This was with idling and driving and reving. The voltage stayed at 11.23v - 11.36v until randomly the volts jumped up to 13 and 14 volts and the light turned off. This is a random issue. The capacitor on my system also displayed the same voltage as my obd2 scanner. I would like to think this issue has something to do with my alternator having an issue but then again this issue didnt come up since after i replaced my engine and battery. So it also could be a connector or ground or something silly. Any ideas where to start? Or possible causes?
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#2 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Check the terminals on the large connectors on the backside of the positive battery terminal for corrosion. Also, check the ground cables that connect to the block to ensure that you tightened them.
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#3 |
![]() ![]() ![]() ![]() ![]() Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
|
Thanks scott,
Positive terminal on the battery was fine (brand new and tight) and also my ground on the engine (that i had tons of issues due to those not being tight) are good and tight. I did also check the main power wire from the alt to the battery and found that had been left loose....tfrom the arking it melted the plasic clip cover to protect that connection and corroided the hell out out of the screw. I tried to tighten it but due to corroision it was hard to turn so to ensure i didnt break it. I will hit it with pb blaster when i get back from the holidays and try to loosen it off, clean it and tighten the heck out of it. Would di-electric grease be okay to put on that connector
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#4 | |
![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Quote:
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#5 |
![]() ![]() ![]() ![]() ![]() Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
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Ugh.... so as predicted the stud broke....... is there a way to remove the old stud from the alt or do i need a new one ?
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#6 | |
![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Quote:
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#7 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,740
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My take on this is he broke the brass stud that the 12v cable connects to.
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#8 | |
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Location: USA, CT
Posts: 13,460
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Quote:
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#9 |
![]() ![]() ![]() ![]() ![]() Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
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That is really disappointing.....
For now Im gonna try to make shift something..... Thanks guys
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If it has boobs or wheels sooner or later your gonna have problems with it ![]() |
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#10 |
![]() ![]() ![]() ![]() ![]() Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
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Hey scott, by any chance do you have part number for that? i managed to make it work for now but its a tempory fix for sure
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#11 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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27357-22200
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#12 |
![]() ![]() ![]() ![]() ![]() Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
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you are GOD my friend
and the loose and corrodied connection there does appear to have been my voltage issue
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