MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: leon_in_uk on June 28, 2006, 16:16

Title: Strange lights flashing!!
Post by: leon_in_uk on June 28, 2006, 16:16
umm when i tap on my breaks the hand break light flashes at the exact time as the battery light...

only for a split second sometimes when breaking...

how weird? a loose connection maybe?
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Post by: Anonymous on June 28, 2006, 16:36
I'd take the car back to your expert MR2 mechanic friend. Something's definately not right there.
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Post by: Anonymous on June 28, 2006, 16:37
lol - no don't - lol - ratflmao
Title: Re: Strange lights flashing!!
Post by: ninjinski on June 28, 2006, 16:47
Quote from: "leon_in_uk"umm when i tap on my breaks the hand break light flashes at the exact time as the battery light...

only for a split second sometimes when breaking...

how weird? a loose connection maybe?

Maybe its time for a Kit Kat seeing that its a problem with the break!

*Ill get my coat*
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Post by: markiii on June 28, 2006, 17:32
Quote from: "Ekona"I'd take the car back to your expert MR2 mechanic friend. Something's definately not right there.

good idea he needs teh practice
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Post by: Chris_h on June 28, 2006, 18:10
Quote from: "markiii"
Quote from: "Ekona"I'd take the car back to your expert MR2 mechanic friend. Something's definately not right there.

good idea he needs the practice

But by the time he has it back on the road, summer will be over   s:( :( s:(  

Leon, have you found several empty Sake bottles in your 2? wondering if it was a party that Friday afternoon in Tokyo when your beast was built  s:?: :?: s:?:
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Post by: markiii on June 28, 2006, 18:11
more likley pints of M&B in the midlands when his engine was put in  :-) :-) :-)
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Post by: Anonymous on June 28, 2006, 18:34
jeezus!!!  post a seemingly rational and serious question and the guy gets assasinated!!!   s:shock: :shock: s:shock:  

I mean, I know the guy possibly doesn't do himself any favours, but this is all probably a bit harsh!?

remind me never to get on the wrong side of you guys!!   s:wink: :wink: s:wink:
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Post by: Chris_h on June 28, 2006, 18:49
Quote from: "jamesr1"jeezus!!!  post a seemingly rational and serious question and the guy gets assasinated!!!   s:shock: :shock: s:shock:  

I mean, I know the guy possibly doesn't do himself any favours, but this is all probably a bit harsh!?

remind me never to get on the wrong side of you guys!!   s:wink: :wink: s:wink:

Yes sorry - you're right. I posted a similar post to yours in one of Leon's earlier posts - seems I've now fallen onto the darkside of this ongoing soap opera.

Sorry Leon, but you seem to deal with all these problems with impressive good humour   s:D :D s:D  

Re. the problem - The handbrake light is also the warning light for any (non ABS) problem in the braking system - such as low fluid / pads / faulty master cylinder etc (am I correct?)
In which case, is the first port of call to check fluid levels / and visual inspection of brakes to ensure safety?

Based on the fact the battery light is coming on too, would suggest a minor electrical problem? I can't think of an issue off the top of my head that would cause both. The only thing I can think of (that is a real problem) that illuminated the battery intermitently is a alternator belt slip / faulty alternator. But can't see how it would be related to the brakes..

IN short, I'm confused.
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Post by: Anonymous on June 28, 2006, 18:50
Err, suppose you've checked your brake fluid levels
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Post by: Anonymous on June 28, 2006, 18:52
Leon,

I suspect that you could be low on brake fluid or an ABS sensor has gone duff. Definately check the brake fluid immediately though, if you haven't already!

[edit - beaten to it whilst thinking!]
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Post by: Chris_h on June 28, 2006, 18:57
Quote from: "Richie"Leon,

I suspect that you could be low on brake fluid or an ABS sensor has gone duff. Definately check the brake fluid immediately though, if you haven't already!

[edit - beaten to it whilst thinking!]

Richie, is there a seperate ABS light? would look, but too lazy to go outside!

Low fluid would make sense if flashing when braking, as presumably the sensor is in the reservoir and the level dips when brakes are used.
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Post by: aaronjb on June 28, 2006, 19:00
The fact that the battery light comes on as well would be pointing me toward an earth problem, probably somewhere around the rear light cluster or it's associated wiring..

But, of course, it could also be a bad earth on the cluster or somewhere else, and the fluid idea might be on the mark (or fluid level indicator).

IIRC the 'charging circuit light' (aka the battery) lights up when the alternator is not producing a current because the alt circuit goes 'open', leaving the battery light as the only path to the -ve of the battery.. it shouldn't come on for any other reason than something electrical.
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Post by: Anonymous on June 28, 2006, 19:02
Quote from: "Chris_h"
Quote from: "Richie"Leon,

I suspect that you could be low on brake fluid or an ABS sensor has gone duff. Definately check the brake fluid immediately though, if you haven't already!

[edit - beaten to it whilst thinking!]

Richie, is there a seperate ABS light? would look, but too lazy to go outside!

I'm not sure now that you mention it mate - and me too!

QuoteLow fluid would make sense if flashing when braking, as presumably the sensor is in the reservoir and the level dips when brakes are used

That was my thinking too.

As for the battery light flashing on, I was trying to think of a possible electrical fault that might cause that (if its none of the above) but can't think of anything specific asides poor earths or bulbs shorting in the light cluster

It could be Leons ECU wiring as I seem to remember he had problems in that department straight after the engine swap (Engine wouldn't Start)??
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Post by: spit on June 29, 2006, 10:20
Yes there is an ABS light - comes on and self-extinguishes if OK at start-up.

Leon. I take it this is a problem that has started recently and not one that has been present since the engine swap?

My thinking re. handbrake light is along the same lines as the posts above (fluids), but that would make the ignition light issue no more than a very bizarre coincidence.....

.....so now I'm wondering if you shouldn't return to all of the wiring that was disturbed during install and do a double-check.

Hmmmm.
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Post by: leon_in_uk on June 29, 2006, 10:33
ok i will..

it hasnt come on in a while just last week it was flashing on and off etc. but only very quickly.

i have only just read all the posts so my first thing i will do before i drive will be to check all the fluids.

it didnt light this morning at all, so maybe just a very minor problem
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Post by: Anonymous on June 29, 2006, 10:45
We had this on our Focus, did come on all the time, but it turned out to be brake fluid, there was a leak.

Hardly a minor thing not having any brake fluid, so I would suggest you do check it regardless of whether the light is on now.  I wouldnt want to be the guy you run into the back off knowing that you could have an issue with your brakes.
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Post by: leon_in_uk on June 30, 2006, 09:09
right, travelling down the motorway yesterday, after checking my fluid...(it was on the max level and fine)

the two lights were coming on more frequent... so i did a little test.

every time i went over a big bump etc they are more likely to come on. and when i make the car jault left and right etc on a safe road the light comes on for each jault, as if the fluid is low but its not!!

i got in my car this morning and the first thing it did is show both lights for about 30 secs, and then flashed on and off on my journey to work..

the breaks seem normal, and so does the car! what could this mean?

the sensor??? or a dodgy connection??
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Post by: kanujunkie on June 30, 2006, 09:26
love the technical fault finding.................NOT!

you need to trace the wireing thru to determine the fault correctly, all your going to achieve by this course of action is a knackered set of tyres and still no idea what the hell is happening. Do it properly or take it back to your master mechanic
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Post by: leon_in_uk on June 30, 2006, 09:37
i did have alook at all fuses linked. and tried to follow wires. but im not a mechanic i didnt have a clue about the earthing etc.

the only thing i can do is take it to that mechanic... hopefully he will find a fault, but if not a trip to toyota.
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Post by: Anonymous on June 30, 2006, 16:01
I had similar symptoms years ago in my old Scimitar.  The fluid level was fine, but the warning lamp kept coming on.  It took me some time to determine that the problem was due to the float - it was made of cork and had become saturated, at which point it no longer floated very well!

I guess floats are no longer made out of cork, but perhaps the float may be punctured?
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Post by: leon_in_uk on June 30, 2006, 16:15
shall i dip around the break fluid then?  s:D :D s:D  maybe do some fishing...
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Post by: leon_in_uk on July 10, 2006, 12:37
right, the lights dont come on now when i break, just when i accelerate...

which has changed, but they stay on alot longer. toyota want £62 for an hours labour to do a diagnostic test and to test the problem....

i think they are a rip off...

am i  better taking to an auto electrician?

thanks
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Post by: aaronjb on July 10, 2006, 14:12
If you can find a good auto electrician (they're hard to come by these days) then yes, absolutely..
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Post by: Anonymous on July 10, 2006, 16:59
Hang on... Almost two weeks on with a dodgy brake light flickering away on your dash, and you've still not got it fixed?!  s:shock: :shock: s:shock:


Words ---> Me




Come on Leon, I'm not trying to be harsh here mate but you really need to bite the bullet and just get it checked out ASAP, else you could be introuble if something is seriously wrong and drive into the back of someone at 70mph+...
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Post by: leon_in_uk on July 10, 2006, 17:03
its not the brakes...

i have been told by the auto electrician it maybe the alternator... he said he has had toyota's do similar before and needs to test if the alternator is working properly or not!!

the cars fine, itself and there is no major problem. it drives and brakes fine, why would i rush.. i dont drive often...
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Post by: Anonymous on July 10, 2006, 18:08
Quote from: "leon_in_uk"i dont drive often...

  s:shock: :shock: s:shock:   crikey! you may not drive very much, but I don't think your brakes will say to themselves "i know, we'll go easy on this one and keep stopping the car cos he doesn't really work us that hard!"

It's not like having half a tank of petrol and thinking "oh well, I'll fill it up next weekend cos I don't really use much petrol", it's more like skydiving and thinking "I'll get my chute checked for fraying and degradation next month cos I only do one dive a week"...   s:? :? s:?    s:shock: :shock: s:shock:
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Post by: Anonymous on July 10, 2006, 18:13
Quote from: "leon_in_uk"its not the brakes...

i have been told by the auto electrician it maybe the alternator... he said he has had toyota's do similar before and needs to test if the alternator is working properly or not!!

That's kinda missing the point.


You don't know for a fact that it's nothing to do with the braking system (hence the "maybe it's the alternator"), and yet you're still driving it. As James said, it doesn't matter if you drive 1 mile or 1000 miles, things could stop working at any time.


Put it this way, if it were me I wouldn't even dream of driving it until I had the problem nailed down.
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Post by: aaronjb on July 10, 2006, 19:51
FWIW, I'd agree with the auto electrician - if the battery light is coming on it's almost certainly the charging circuit.

In fact... I'm sure I said that quite a few posts ago...  s;) ;) s;)
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Post by: Anonymous on July 10, 2006, 21:12
Quote from: "aaronjb"...it's almost certainly the charging circuit...

but not definately!!!

some unfortunate soul could almost be dead...!    s:wink: :wink: s:wink:    s:? :? s:?
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Post by: leon_in_uk on July 11, 2006, 09:02
so if it was the charging circuit, would that explain my heavy steering some time ago?

how much for a new alternator? fitted?
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Post by: kanujunkie on July 11, 2006, 20:39
Quote from: "leon_in_uk"how much for a new alternator? fitted?

pass, ask mr.T
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Post by: Chris_h on July 11, 2006, 20:54
But check all the connections and earths, belt tension etc

May have been disrupted / not put back correctly during all the engine woes.

Is it still you're existing alterator?
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Post by: leon_in_uk on July 12, 2006, 09:01
yes it is.. i am taking it to have the alternator checked to see if its charging properly..
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Post by: leon_in_uk on July 18, 2006, 09:29
hi guys, got it checked on friday. told ya nothing to worry bout...  s:wink: :wink: s:wink:  

he tested the alternator and when i revved the battery light came on. it a slight dim in the circuit. and said wont affect my charging/alternator unless its on all the time. a quick flick of the lights wont really make a difference to it charging. said to run it for a couple of months and it might go...


if it gets worse i will change the alternator. but at £165 its expensive, oh and the fitting, will i have to take the engine out?
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Post by: edward.carter on July 18, 2006, 09:33
what about the other (braking) light?
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Post by: leon_in_uk on July 18, 2006, 09:42
its the handbreak light, connected to the charging circuit. and represents the same problem, just a glitch in the system. for a second or so...

i might give my battery a good charge to see if that does anything!!