Question about 1993 Geo Storm

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Why do battery terminal and brake light indicators come on?

New aternator and battery charging fine, battery terminals and brake lights come on on dash board WHY

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  • Geo Master
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Old post
left key to on, while doing service
turn the key off
battery installed backwards

Posted on Jan 17, 2016


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Posted on Jan 02, 2017

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SOURCE: charging system, 90 prizm

yes it is, you can also check this with the engine running measure voltage at the battery anything above 12.5 is charging if below is not working

Posted on Mar 30, 2009

  • 273 Answers

SOURCE: 1991 geo prizm, battery light

Yes, it could be. Or you can check your battery. And try adding brake fluid to your master cylinder. That sometimes will cause the brake light to come on. Or check your emergency brake. Hope this helps, James Booth.

Posted on May 17, 2011

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SOURCE: 95 geo tracker will not start

shift lock cyclinder bad

Posted on Apr 12, 2014

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Battery and brake light constantly comes on

Battery light comes ON,this is indication of battery not getting charged by the alternator in the car.So the battery is loosing its charge/voltage.Other possibility of battery light coming on is battery is getting weak and it needs to be replaced.In some cases,just removing and cleaning the battery terminals and then reconnecting the battery terminals again.solves the problem.But also check the battery voltage by voltmeter.A fully charge proper battery will give 12 volts.If there is then get the battery terminals cleaned and reconnect and check.-------------- Now another problem,the brake light comes on when,the brake fluid is near to end or there is any problem with brake system,that is if brake pads are getting worn out or brake caliper is getting loose,In this case first check the brake fluid,if that is fine then check the brake pads and caliper.If that is also checked fine,then only in that case.Check the brake light switch.The switch is located where the brake lever is.Remove that brake switch,clean its wiring and recheck.It should help.-------------- Thanks.Helpmech.

Jan 18, 2011 | 1997 Nissan Maxima

1 Answer

I have a 1990 F150 and the battery runs dead after sitting for a day. I can jump it and drive it and the battery will get a full charge, The battery will keep a charge if I unplug battery cable when Im...

Absolutely i would put a voltage meter tester on the battery terminals with the vehicle running you should have a reading of 13.29 to 14.29 anything lower would indicate not charging efficiently

Dec 18, 2010 | Ford F-150 Cars & Trucks

1 Answer

I have a 1998 Honda Accord LX V6. Indicator lights for all doors as well as charging system and emergency brake came on. Replaced alternator and battery. Within 1 mile of driving, all lights went off for a...

need hist. of this VEHL first ...NEW or USED or was its in an accident before ,power come from Battery and charge from Aternator...if its don't have juice than can cause ECU go crazy and other thing also it trying to looking for power and want to shut vehl. off if it can't find the juice of the battery

Apr 02, 2010 | 1999 Toyota 4Runner

2 Answers

My 1990 camry is charging 14 volts but will not turn the charge light out on the dash, allso the headlight indicator and brake light are on, i allready changed the regulator

There is no way to guess at this problem, you will have to use a multimeter and troubleshoot the circuits. Try first checking for error codes on the computer

Nov 02, 2009 | 1987 Toyota Camry

2 Answers

Battery wont stay charged

Check the alternator is charging.
Check dash indicator 'BAT' lamp lights when Ignition on prior to starting motor,
Battery terminal voltage should be 14.0 - 14.5V with engine running and headlights on.
Ensure battery terminals are clean and firmly attached - ensure chassis ground is properly connected.

Sep 22, 2009 | 1986 Nissan Sentra 4 Door

2 Answers

O2 Dodge Dakota Brake lights wont work but bulbs r good.

If the bulbs are good I would suspect the Brake light switch.

Brake Light Switch: Testing and Inspection
The brake lamp switch can be tested with an ohmmeter. The ohmmeter is used to check continuity between the pin terminals.
Switch Circuit Identification
- Terminals 1 and 2: brake lamp circuit
- Terminals 3 and 4: RWAL/ABS module and Powertrain Control Module (PCM) circuit
- Terminals 5 and 6: speed control circuit
Switch Continuity Test
NOTE: Disconnect switch harness before testing switch continuity.
With switch plunger extended, attach test leads to pins 1 and 2. Replace switch if meter indicates no continuity.
With switch plunger retracted, attach test leads to pins 3 and 4. Replace switch if meter indicates no continuity.
With switch plunger retracted, attach test leads to pins 5 and 6. Replace switch if meter indicates no continuity.


Sep 11, 2009 | 2002 Dodge Dakota Club Cab

1 Answer

I have a 1996 C180. The car is not holding charge even when driving. The battery and alternator are fine. The light for the battery is showing on the dash. I am completely stumped. Can anyone help me?...

The battery (or IGN) indicator on the dash, when lit, indicates that the alternator is not charging.

Check the battery terminals are not corroded, and the battery +12V and earth connections to the vehicle are in good order.
Check battery electrolyte lvel is ok.

Check the battery terminal voltage - it should be 13.8volts to 14.5 volts with the engine running. Switching on the headlights should not cause any reduction in that voltage while the engine is running.

The battery will not charge significantly unless the terminal voltge is in excess of 13.0V.

If all the above test ok, and the battery discharges between daily vehicle uses you may need a new battery.

Jun 17, 2009 | Mercedes-Benz C-Class Cars & Trucks

1 Answer

Brake light Out indicator will not go out on 1994 BMW 540i

Do it again, and again, if not, try disconnecting the battery negative terminal, with ignition key on and radio on, for four minutes and than connect terminal, back,do not panic when sparks come on wile connecting it. Turn ignition key off and start engine

Jan 22, 2009 | BMW 5 Series Cars & Trucks

1 Answer

Warning lights stay on


Brake light warning indicates possible low brake fluid in the reservoir;

Charge warning light indicates battery not charging which can be caused by defective alternator/regulator, slipping belt, corroded fusible link from alternator to battery B+ terminal.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

May 24, 2008 | 1988 Toyota Pickup

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