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Old 17-08-18, 09:46 PM   #1
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Question Battery Fault Charching

Hi,

My car computer display shows "battery fault Charging" and begins to disable airbags, brakes, abs system and windows. I had to try and drive the car home from shopping until there was no power in the battery. It completely died. It had to be towed home.

In my experience and with some quick tests with multimeter, the common symptoms indicate defective generator.
I have switched the generator/alternator last week (the new generator is a used one from a scraper). But the error still shows up after 10 minutes of driving.

I have connected PP2000, which has given a fault code of 0480. When the car starts the battery measures 14v, but after a short 10 minute trip it went down to 11.6v and the car engine starts shaking a little.

I attached photos from pp2000 Diagnosis.
Is there anyone that has some ideas as to what I can do to fix the error?

Peugeot 307 sw 1.6 benzin from 2002

Thanks in advance.
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imgonline-com-ua-compressed-gl58tmxqd9dygk.jpg   imgonline-com-ua-compressed-be8hryuh6mbzoqi4.jpg  
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Old 17-08-18, 09:52 PM   #2
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It is highly likely the replacement alternator is faulty, or the battery has failed, possibly with shorted cells.
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Old 17-08-18, 10:08 PM   #3
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Thanks for ur reply.
I did change the Battery to. Can the fan relay cause an intermittent fault? or cause voltage drop?
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Old 18-08-18, 07:35 AM   #4
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The fan fault indication is probably caused by the low voltage, not the other way around.

If you are confident about the battery, get a good alternator.
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Old 18-08-18, 09:49 AM   #5
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Sounds like a dodgy voltage regulator in the alternator, or a fault on the reference voltage connection to that regulator. Though the latter usually causes overcharging.
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Old 18-08-18, 01:12 PM   #6
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I would fit a new alternator. Don't bother with one from a breakers. They are not very expensive and you should then be able to dismiss that from the equation. The only other thing it could be is the battery, yet again, not very expensive.
At least with new parts you have some sort of guarentee.
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Old 18-08-18, 09:54 PM   #7
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You can usually get just the VR and brushes, far cheaper than a new alternator. Could just be the brushes are worn.
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Old 19-08-18, 06:54 AM   #8
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Thanks all for urs replay.. I will try to fit a new alternator to narrow down the problem. and I ll be back with the results.
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Old 19-08-18, 02:21 PM   #9
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Check the small plug on the alternator too some have 1 wire some have 2 you need correct alternator type
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Old 06-09-18, 05:49 PM   #10
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Unhappy Update

Hey guys.. update on my situation.
New alternator + new battery installed, but still the same problem "charging battery fault". The alternator give 14.2 v when I start the car but after 7 min drive ,the voltage drop to 11.2( There where the warning message shows up).
PP2000 shows the same fault reading as on my first post. could be a Maxi fuse? I have the wiring diagram from Haynes ( fuse MF7 at 30A). Is anything im over looking?
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