Question about 2007 Hyundai Sonata Limited Sedan

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Where is the fuse for the Alternator located?

I have replaced the battery (it had a bad cell) and the alternator but car won't idle unless jumper cables are attached to someone else's car. As long as it is connected you can push the gas peddle and it revs, but as soon as you undo the jumper cables, it just conks out. Could this be a short, if so where is the best place to look, and also where is the Alt. fuse which would be the easiest thing to check first. it obviously isnt getting power from the alternator. Thanks in advance.

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There is a 125 amp fuse in the relay box and a 10 amp cluster fuse in the instrument panel fuse box. That cluster fuse may be powering the field coil.
Where is the fuse for the Alternator located? - 0996b43f80e61961-kxdypsy4dopvdztiqcr0di0x-1-0.gif

Posted on May 28, 2017


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Posted on Jan 02, 2017

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SOURCE: check engine light stays on.

Can't really guess with these car the computer that puts on this light is very sensitive and is very accurate. Here is my suggestion take your vehicle to an AUTO-Zone they will check why the engine light is on for FREE. make sure you get the code or codes and their meaning and get back to me if you need more help. Good Luck

Posted on Dec 27, 2008

  • 8 Answers

SOURCE: Hyundai alternator has no output is there a fuse?

Is the regulator built into the Alternator on this vehicle??

If the regulator is messed up - it can keep the alternator from producing output.  I am not familiar with this particular vehicle.

Airframe and PowerPlant mechanic.  I am familiar with principles, and how stuff works...  Clarify with the 'parts house' what they mean by the alternator being OK - while producing 0 output.  A lot of vehicles now have the regulator built into the Alternator...

A Hanes or Chilton's book would probably be able to help, and since the car is only 5 years old - see if you can pick up a Factory Repair Manual, and diagnosis troubleshooting flow chart.  These items are worth gold in fixing specific vehicles.

You could also subscribe to:    This is another technical resource base.  Hope this helps.

And: Yes, there are fuses.  A fusible link would probably mean the car wouldn't run, and/or a direct bad short.  A fuse could have inadvertently blown - look around.  Get a book.  Electrical stuff needs a roadmap.

Posted on Apr 19, 2009

  • 14036 Answers

SOURCE: Could it be a bad alternator fuse?


Posted on Aug 02, 2009

  • 52 Answers

SOURCE: 2001 Elantra Voltage Spike

Sounds like you got a bad rebuilt alternator. I'd bring it back to where you got it from and if they have a way of bench testing it, then have them do that or just replace it.

Posted on Aug 05, 2009

  • 799 Answers

SOURCE: My battery died so I

Yes, that is on the low side for recharge. A good alternator should put out around 14 volts. 13.2 is sufficient to recharge the battery, but when you are also running your lights, heater, A/C, radio, etc. at the same time, it would not be enough to keep your battery fully charged at all times. Personally, I would replace the alternator at that point, it is bound to fail altogether soon.

Posted on Jul 30, 2011

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Put in a new atl wont charge

If both the alternator and the battery are good, either the alternator isn't turning fast enough (slipping belt or engine idle speed too slow), or you have a wiring problem.

To check your wiring, look for the "1" terminal on the back of the alternator (left side of spade terminal connector). When you turn the ignition key to the run position without starting the engine, the alternator warning light should be at full brightness. If the bulb is burned out, the alternator will not get the excitation current it needs to start up (it goes through the bulb). With the engine running, you should measure 12 Volts at the 1 terminal (this is the excitation terminal).

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