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Re: I own a 2000 mazda mpv, battery light was on and a...
You probably got a defective alternator...this happens more than it should...perform alternator output test at 2000 rpm you should make 13.6 volts and up to 100 amps of power under load.
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Removing either battery cable, thereby taking the battery out of the circuit, with the engine running can cause the alternator to charge full tilt and destroy sensitive micro volt (computer controlled) components; and I've seen wiring harnesses go up in flame from it. You may have a module problem.
Dear Sir,
This indicate that your alternator is not working(alternator:- it is device that charge your vehicle battery ) please take it to workshop otherwise your car may got breakdown in between.
Thanks Yogesh
The alternator is what charges the battery, most likely there is a bad connection at or to the battery, or the alternator has quit working and you will need to replace the alternator.
Check the large fusible link labeled ALT in the under hood fuse box. If this fuse gets blown, the alternator wont be able to charge even if it IS new,because the ALT circuit is open.
Typically an alternator is an easy fix. It requires removal of the belt from the engine running it, and a few bolts that attach it to the engine.
Because of the engineering with the 2000 mpv, it is a very difficult fix, and one that requires removal of the transaxle and exhaust manifold, as well as removal of the lower engine mounts. It will take a qualified Mazda mechanic 3.5 hours to do the fix - you can (at least) triple that amount of time as a DIY project (assuming you have the right tools).
Remove negative (-) battery terminal from battery. Remove drive belt from alternator pulley. Remove wiring harness (electrical connections) from alternator. Remove attaching bolts for alternator. Pry out alternator. Reverse steps to reinstall.
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