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Old 07-04-2012, 03:43 PM   #11 (permalink)
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Check the alternator fuse
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Old 07-04-2012, 04:26 PM   #12 (permalink)
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alt fuse is good...located right on battery terminal...checked with meter...all good 12.91
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Old 07-04-2012, 05:10 PM   #13 (permalink)
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Try this, connect a wire (between #10 to #0 if possible) directly from the alternator to the battery. If still no luck you have a bad alternator, if the voltage increase then you have a wire problem. Hope it help.
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Old 07-04-2012, 07:25 PM   #14 (permalink)
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Can we get the voltages on the white & black/white coming out of the alternator?

No offense meant, but are you sure that was a plain white wire and not white with red tracer?

All the Suzukis I've looked at had black/white & white/red - the black/white is an ignition feed that powers the regulator, so it should have +12V once the ignition is on, and the white/red is the signal to the charge light, so that should be close to 0V before the engine starts and close to +12V once the engine is running.

If you're not seeing these voltages, I'd say you have a defective alternator.
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Old 07-04-2012, 09:02 PM   #15 (permalink)
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Hello,
12.91 off main terminal on alt coming from battery
12.79 off blk w/wht trace
both of these numbers with car off/ turn car on and both numbers drop.

very possible the wire I think is all white could have a red tracer...hard to see from my vantage point, there is not alot of wire comming off the harness going to the alternator.

blk wire with white trace only has power with key forward/toward on-run position
the all white wire (possible red trace), has no power...regardless of key position.
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Old 07-04-2012, 09:24 PM   #16 (permalink)
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you have a bad alternator, im positive
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Old 07-05-2012, 06:44 PM   #17 (permalink)
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Ok...I am Reeee replacing my alternator.
Should get tomorrow at AutoZone.
Well let you know how it goes when I get the new one installed.
AND...I was able to remove and re-install w/o taking off the right drive shaft and exhaust.

There is a bright side to this story (I am trying to find it...believe me).
With all the back and forth with the alternator and tracing wires,
I noticed the front motor mount is on it last leg.
The other two mounts are good (Thank God!) they look a little more involved.
So...I've ordered the motor mount and look forward to tackling that project as well.
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Old 07-05-2012, 06:45 PM   #18 (permalink)
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Not really
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Old 07-06-2012, 04:13 AM   #19 (permalink)
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just curious...Does the Aerio have a power control module??
Would that impact the way the alternator works.
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Old 07-06-2012, 05:43 AM   #20 (permalink)
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I'm sure there is a PCM or ECU, but I doubt that it's in the charging loop.

Alternators are typically internally (like yours in all likelihood) or externally circuited with their own stand alone regulator, for rather simplistic operation purposes.

Again...replace the Alt if your adjoining connections / wiring are found to be proper.

Your problems will magically go away.
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