Question about Toyota Starlet

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Ep80 toyota charging faults Alternator charge rate 14.2 volts.2E engine,5spd mannual Battery does not go flat.However on continuous display on the dash cluster are the brake fluid level light and Battery light.Brake fluid level switch is working according to ohm meter.There are no blown fuses in both fuse boxes.Cig lighter, brake lights,reverse lights,Handbrake warning light,interior lights etc all working as they should.Alternator bearings and regulator has recently been replaced when lights first came on.Where would I look now to remedy faults.

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  • geoff hunter Oct 07, 2010

    the charge voltage is CORRECT at 14.4.Have you tried resetting computer ????after all work carried out????

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  • Toyota Master
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Wow. Good question. If you can get a hold of the schematic for your car you can check out the components that are in the path that turn on those two indicators. And since both are operating improperly at same time it has to be something that they both share in common.

Posted on Apr 30, 2017

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SOURCE: Utility cigrette lighter in dashboard

you may have burned out the lighter unit.check the wires for melting also!

Posted on Sep 23, 2008

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SOURCE: 2001 Galant cig. lighter & side mirrors

Check your fuse block, you most likely need to replace a fuse. Your owners manual will help to locate it. countrycurt0

Posted on Oct 10, 2008

  • 1 Answer

SOURCE: brake light and alternator light

2001 hyundai elantra brake light and battery light both on

Posted on Oct 26, 2008

hdpanama
  • 65 Answers

SOURCE: fuse/circuit breaker for cig.lighter/radio/dash lights

The heavy duty or 'circuit breakers' should be in the engine compartment, perhaps in front of the air breather.There are one or may be 2 inside behind the front side kick panels driver and passenger side, or under the steering wheel.

Posted on Nov 25, 2008

SOURCE: lighter stopped working,

The Cigarette lighter is run off of a 20A fuse located in the engine compartment just behind the battery. The fuse map will say P-Out and is in position #14. Hope that helps.

Posted on Dec 21, 2008

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KUN 26 D4D Hilux...something is draining the battery over 3 or 4 days...Alternater putting in 13.85v but battery goes flat over 4-5 days


13.85 volts is barely sufficient and would indicate an alternator fault if the reading was taken "off-load"..

An alternator is not designed to charge the battery and is incapable of doing so because the terminal voltage of the battery quickly rises to fool the voltage regulator into believing even a discharged battery is fully charged and will quickly reduce the charge rate to a trickle.

The alternator is therefore designed to keep a fully charged battery fully charged by supplying all the current for the vehicle equipment and the output rating is chosen for this purpose.

The voltage regulator should limit the off-load voltage to about 14.5 volts but that is only a small part of the alternator test. A professional would apply a load across the battery equal to the rated output while monitoring the voltage and current. Most healthy alternators exceed specifications.

For a sensible in-service test when an adjustable load isn't available, with a fully-charged battery it is sufficient to start the engine, leaving it to idle and switch on all the vehicle equipment. Fit a voltmeter to the battery and wait while the battery voltage is pulled down by the load - to around 12.5 volts. Raising the engine speed to 2500/3000 rpm should cause the voltmeter to suddenly rise.
13.85 would be just about acceptable "on-load" but in excess of 14.0 volts would be ideal.

Jul 10, 2016 | Cars & Trucks

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Undervoltage battery indicator on a mercedes c240 keeps flashing and e know that my battwry is not being recharged


check the charge rate by putting volt meter across battery with engine running if between 13 - 14 volts alternator ok ,the ecu is a completely different part to the charging system , then check if battery is holding charge at a garage

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Sounds like alternator (generator) is at fault. Voltage at battery should read about 14 volts when charging. Sometimes onlythe regulator (diode pack) on alternator is at fault some can be changed without having to have a new alternator (not sure about yaris)

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2001 ford explorer sport wont charge


I'm not sure if you have all of the info you need to go forward with this.
The battery may be rated for 800 amps but could have less than 12 volts if the alternator is not charging it.
It could have a dead cell which would keep it from holding a charge.
You would need to check the charge of the battery with a volt meter, then see if the alternator is charging at 14 volts when the engine is running. The battery should be at least 12 volts with the engine off.
The problem could be in the wiring from the key switch or dash gauges back to the alternator.

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The battery light is on, check charging system communication is displayed. Have changed battery with no change.


it may be the alternator thats not charging or its a over charge. at battery with engine off should read at least 12.8 to 13 volts, when engine is running, at battery voltage should be at least 14 to 14.2. if running and not producing about 14 volts. the alternator is bad, or the belt is slipping. check alternator voltage. have a good day !!

Dec 03, 2010 | 2004 Ford Expedition

1 Answer

How many volts should my alternator be charging at


A fully charged battery has about 12.6 volts but the battery voltage will increase to a point that is usually between 13 to 15 volts when the engine is running with a properly operating alternator. I find most charging systems seem to hold the voltage in that 14 to 14.6 volt range depending on how many electrical devices such as a/c, headlights, etc.are on at the time which can pull the voltage down a bit.

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Battery keeps dying,starts immedetily when you hook jumper cables to it,could this be the alternator?


it could well be that if its not charging the car battery up,,or it could be you have a dud battery that just wont hold its charge any more

Jul 04, 2010 | 2005 Chevrolet Colorado

1 Answer

The car won't turn on at all. The lights won't turn on, the hood won't go up. Its completly shut down and was just charged last month.


Hi,

There are two main possibilities here.

1) The battery is flat because it is no longer holding a charge. The ability of a battery to retain a charge will diminish over time. In this case a replacement battery is needed.

2) There is a problem with the alternator which is not supplying charge to the battery when the vehicle is running causing the battery to be drained over a period of time.

You can test for both of these using a multimeter and this is very easy to do.

1) With the meter set to the DC scale and attached to the terminals of the battery (Red lead to Positive, Black to Negative) and with all accesories turned off - you should have a reading above 9.6 volts. If the reading is less than this the battery is faulty and needs to be replaced.

2) If the reading is above 9.6 volts, you need to get the car running in order to test your alternator. You will need someone to rev the engine whilst you connect the meter to the battery. With the engine at a fast idle, and all accessories off, the voltage on the meter should read around 14 volts (13.5 to 14.4) showing that the alternator is producing a reliable charge.

Anything less than 12 volts with the engine running means the alternator is at fault and it is the alternator that needs to be replaced not the battery.

You can also test with accessories on (heater, lights etc,,) The reading should still remain around 14 volts with these extra drains on and the engine at fast idle. Anything less is an indicator of a faulty alternator being the cause of your problem.

Hope this helps. Thanks for using FixYa.

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1 Answer

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if charging light is on w/ engine running,the fault could be the alternator or another component of the charging system.remove, clean and tighten battery post connections to check for alternator output,use a volt meter or multi-tester set to 50 Volts DC,w/ tester on battery terminals it should read 12 volts W/ engine off;13 to 14 volts w/engine running.if voltage increases when alternator is spinning,suspect battery

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