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10-09-2010, 05:53 AM | #1 |
Drives: 2009 YARIS 1.0 VVTi Join Date: Aug 2009
Location: YORK, ENGLAND
Posts: 21
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Fluctuating Alternator output
Having a big problem with my 09 Yaris (at least the Toyota dealer is)
I first noticed my heater blower speed slowing down & speeding up on it's own. It does not do it when I have the exterior lights turned on. Took it in to Toyota and to cut a long story short the problem is not with the blower, but with the electrical system. A Toyota field tech diagnosed the alternator, as it was fluctuating output in sync with the blower fan speed slowing/speeding up. They fitted a new alternator & it did not cure it. The car is now back with them. I have read about similar problems on here, but nobody has posted the outcomes of what the problem actually turned out to be. Help! |
10-09-2010, 07:11 PM | #2 |
Only Happy When it Rains
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i remember someone mentioning it and the dealership replaced the entire wiring loom. There was a missing/bad ground.
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