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Exclamation mark - what does it mean

learningman

By learningman
in Corolla / Corolla Sportivo Club

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learningman Progessing

learningman

Posted
Posted

Hi everyone, I am new here and need some help.

My wife's Corolla has had the Master warning light come on (picture attached). It's a yellow exclamation mark and I have asked 2 separate Toyota dealers what it means and they have been unable to help me.

Anyone have any ideas ? Many thanks.

post-30054-0-53292000-1347491598_thumb.j

learningman Progessing

learningman

Posted
  • Author
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Really ? Ok - I will do this tonight. The tyres looks good.

I didn't realise Corolla had a tyre pressure sensor ? I realise it's the Levin ZR but didn't think this was the case.

Thanks.


learningman Progessing

learningman

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I got a better idea.. Don't check that check your owners manual first ..

Did that ... it says "Master Warning Light". It does not however tell you what it can be. It's not written well. I suspect Toyota could hook up scanner and tell from codes ?

DJKOR Grand Master

DJKOR

Posted
Posted

I got a better idea.. Don't check that check your owners manual first ..

Did that ... it says "Master Warning Light". It does not however tell you what it can be. It's not written well. I suspect Toyota could hook up scanner and tell from codes ?

The words "Master Warning Light" would seem to indicate that something rather important needs to be looked at. If nothing out of the obvious can be seen, it might be wise to consult with Toyota or a mechanic. They are meant to be able to read warning codes so if they can't help you in person, just tell them how useless they are and try another.

It can appear for things ranging from leaving the handbrake on or bonnet unlatched while moving, to something more serious like a fault with your charging system.

DJKOR Grand Master

DJKOR

Posted
Posted

So it's like a CEL light?

Kinda. There is one of those as well for when things really break.

u54mot Grand Master

u54mot

Posted
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The light comes on, if you turn your engine off after you have opened the door, OR whenever you have then ignition on with the door on.

learningman Progessing

learningman

Posted
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The light comes on, if you turn your engine off after you have opened the door, OR whenever you have then ignition on with the door on.

Light comes on when I open the car door or switch off engine. Light goes off when engine is switched on. I have checked hand brake, sunroof, all lights, coolant & engine oil.

Will check tyre pressure tonight. Very strange.

learningman Progessing

learningman

Posted
  • Author
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OK - checked tyre pressures and all ok. Light still remains on before and after shutting off engine. :-(

trd-benji Community Regular

trd-benji

Posted
Posted

i used to get his for my handbrake(old car), even if i lowered it down there was a problem with the electrical wiring and it kept thinking it was up but it wasn't.

4ABHGE Grand Master

4ABHGE

Posted
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ITS WHAT I USE WHEN IM SHOUTING!!!!!!!!! CAPS LOCK HELPS FOR EFFECT TOO!!!!!!!!

ben yip Grand Master

ben yip

Posted
Posted

defintely not relate to engine, otherwise CEL will throw

I think some sensors is broken. Toyota should be able to diagnoise, they are just being lazy

I got a OBD2 reader, but it only read CEL, which is not your case

Kenshin X Grand Master

Kenshin X

Posted
Posted

ITS WHAT I USE WHEN IM SHOUTING!!!!!!!!! CAPS LOCK HELPS FOR EFFECT TOO!!!!!!!!

what a f#@king troll...

BUT THIS IS MORE EYE CATCHING! SIZE 48 AND PINK TEXT!!!!!!

better take it to another toyota dealer, if they cant find out whats the problem. i dont think anyone can.

Steven Grand Master

Steven

Posted
Posted

If it's only happening when the engine is off, or the car door is open, I wonder if it's got something to do with either your immobiliser or something similar. If it isn't on whilst the engine is running then I would think that it can't be anything serious

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