Question about 1990 Geo Prizm

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How to install back brake light on 90 prizm hatchback

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  • Geo Master
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Never had it.
or how to replace original.?

Posted on Jun 03, 2014


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SOURCE: 1990 geo prizm brake lights only work when car is off

Some vehicles only allow the brake lights to work when the ignition is turned on and control this via a relay which may have failed so the function is reversed allowing them to work only with the ignition off. Relays can 'weld' their contacts together causing them to become non-operational.Check in the central (if so equipped) fuse/relay box; if you are lucky the cover will have a diagram of the fuses and relays.If so, locate the relay for brakes, check the part number on it, exchange it with the same part number from a different function and try (while parked) to see if this has cured the problem by turning the ignition on, tapping the brake pedal to see if they now respond.If so, the original brake relay is bad.

Posted on Nov 21, 2011

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1 Answer

Where are the brake light switch and fuse located on a '90 Toyota Prizm?

Usually located under the dash on the drivers left side.

Apr 23, 2015 | Toyota Cars & Trucks

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Which fuse do I replace to fix the brake light relay?

most cars this era have 2 and 3 boxes.
the car came new with an operators guide. sure lost back in 91
so get one? yes, you can. ebay sells them used,

brake lamps 101
we cant guess what part of the path is bad, no one can , we use a volt meter, that costs $10 at walmart. to answer.
1 test. and bam, you know, guessing is not fun, or cheap.
use tools.
battery>fuse> brake lamp switch on tranny >>>> tail brake lamps.x2
that is the electrical path , simple huh?
4 things, and wires/connectors.

step 1
fuse 6
seen here

Apr 25, 2014 | 1991 Geo Prizm

1 Answer

My 1990 geo prizm brake light comes on when I start to stop and turns off when I stop

You need to replace the brake light switch, it is located above the brake pedal and is actuated by the brake pedal arm.

Jun 12, 2012 | 1990 Geo Prizm

3 Answers

1990 geo prizm brake lights only work when car is off

in front were the brake is try to c if there is a guage like a small little wire

Nov 16, 2011 | 1990 Geo Prizm

1 Answer

1995 geo prizm ebrake light is on. Is this a faulty sensor? I heard it could have an brake indicator wire that makes contact with to let you know youre pads need to be changed.

Your brake pads don't have any kind of wire going to your brake pads that will make the brake light come on, check your master cylinder for low on brake fluid, if low look in back of tire's for wetness, if none, top of master cylinder with DOT 3 brake fluid, and have your brake pads checked for wear.

Dec 09, 2010 | 1995 Geo Prizm

1 Answer

Brake lights not working, fuse is fine bulbs are good all else operates fine, signals, back-up lights, etc all good. 2007 Kia Rio 5 hatchback

Check the brake switch above and behind the brake pedal. It may have slipped out of position or could be faulty. It can be tested with a meter.

Aug 08, 2010 | 2007 Kia Rio 5 Sx M/T Hatchback

1 Answer

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

Mar 30, 2009 | 1990 Geo Prizm

1 Answer

ABS light on dash and brake pull

first your shudder is a warped brake rotor and you always grind or replace them in pairs.
and your sensor
90% of the time its a broken wire just check before you replave you sensor

Dec 03, 2008 | 1999 Chevrolet Prizm

1 Answer

Brake and parking lights

It has been my experience that the type of problem you describe is usually caused by a bad ground at one or more of the lights, or by a bad chassis ground. I suggest you first ensure that the battery, chassis, and engine grounds under the hood are good. If they are you might try pulling one lamp at a time to see if you can find one that when pulled, the rest work normally. If you find that lamp, your problem is there. Good luck

Sep 03, 2008 | 1998 Chevrolet Prizm

2 Answers

Geo Prizm brake lights

I had the same problem, what I did to fix it was as follows:
  • Removed the plastic light holders from the tail lamp.
  • On each of the three bulbs there is a ground wire that is attached to the plastic light holder via a screw. Remove these connections and clean, I used some very light sand paper.
  • Reassemble, Worked like a Charm for me, and I save a $90 charge from Firestone by doing it myself...

Jun 07, 2008 | 1990 Geo Prizm

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