fast indicator VXR8
Discussion
If it is fitted in the loom at the rear of the car away from the ecu then it can only be a burden resistor if it is inline with a lead to earth then I would assume that is all it is. We could do with taking one apart and making our own , I bet the fix would be penny's. Could be useful for those of us out of warranty? The location and a few pics could yield some clues. anyone!
MUST FLY said:
I'm no expert on this - plus it (fast indicator) has only happened once to me in 12 months of ownership. But we know for sure that it is related to cold temperatures as it only seems to occur during winter.
Do these cold temperatures alter the resistance (electrical resistance will decrease with a reduction in temperature) of a circuit or chip/s in the LED module or elsewhere ie. wiring loom, which is then sensed in the LED module. Has anyone tried insulating the LED module box from the cold (wiring loom would be more tricky) ?
What is this plug in box that seems to cure the fault - is it just a way of adding some resistance to the circuit, bringing it back above a certain threshold.
Lots of questions - not many answers !
Im going to make up some answers.Do these cold temperatures alter the resistance (electrical resistance will decrease with a reduction in temperature) of a circuit or chip/s in the LED module or elsewhere ie. wiring loom, which is then sensed in the LED module. Has anyone tried insulating the LED module box from the cold (wiring loom would be more tricky) ?
What is this plug in box that seems to cure the fault - is it just a way of adding some resistance to the circuit, bringing it back above a certain threshold.
Lots of questions - not many answers !
Perhaps its a dry solder joint which is worse in winter. It goes get worse, mind it until it fails all the time.
If mine gets worse this year or even starts failing all the time, then as I am out of warranty, I will be attempting a DIY fix.
There are plenty of electrical bods where I work who (hopefully) will be able to identify the problem & come up with a cure. Until then however, I am not too keen on splitting my LED module box open (someone on here said it is sealed).
But yes, anyone who has this "magic box" fitted should do the decent thing & let us know where it is or even take a pic or two - please ?
There are plenty of electrical bods where I work who (hopefully) will be able to identify the problem & come up with a cure. Until then however, I am not too keen on splitting my LED module box open (someone on here said it is sealed).
But yes, anyone who has this "magic box" fitted should do the decent thing & let us know where it is or even take a pic or two - please ?
Dear MF,
Being able to get into one of the fix boxes would answer the question easily. Unless it's potted of course
Failing that looking into a disconnected box through the I/O connections with a DVM would also be a suitable analysis method,
regards,
Jet
MUST FLY said:
If mine gets worse this year or even starts failing all the time, then as I am out of warranty, I will be attempting a DIY fix.
There are plenty of electrical bods where I work who (hopefully) will be able to identify the problem & come up with a cure. Until then however, I am not too keen on splitting my LED module box open (someone on here said it is sealed).
But yes, anyone who has this "magic box" fitted should do the decent thing & let us know where it is or even take a pic or two - please ?
From all that's been posted I don't expect it to be anything more than a bit less current (series resistor) or a bit more current (parallel resistor) in the lighting feed.There are plenty of electrical bods where I work who (hopefully) will be able to identify the problem & come up with a cure. Until then however, I am not too keen on splitting my LED module box open (someone on here said it is sealed).
But yes, anyone who has this "magic box" fitted should do the decent thing & let us know where it is or even take a pic or two - please ?
Being able to get into one of the fix boxes would answer the question easily. Unless it's potted of course
Failing that looking into a disconnected box through the I/O connections with a DVM would also be a suitable analysis method,
regards,
Jet
jet_noise said:
Dear MF,
From all that's been posted I don't expect it to be anything more than a bit less current (series resistor) or a bit more current (parallel resistor) in the lighting feed.
Being able to get into one of the fix boxes would answer the question easily. Unless it's potted of course
Failing that looking into a disconnected box through the I/O connections with a DVM would also be a suitable analysis method,
regards,
Jet
MUST FLY said:
If mine gets worse this year or even starts failing all the time, then as I am out of warranty, I will be attempting a DIY fix.
There are plenty of electrical bods where I work who (hopefully) will be able to identify the problem & come up with a cure. Until then however, I am not too keen on splitting my LED module box open (someone on here said it is sealed).
But yes, anyone who has this "magic box" fitted should do the decent thing & let us know where it is or even take a pic or two - please ?
There are plenty of electrical bods where I work who (hopefully) will be able to identify the problem & come up with a cure. Until then however, I am not too keen on splitting my LED module box open (someone on here said it is sealed).
But yes, anyone who has this "magic box" fitted should do the decent thing & let us know where it is or even take a pic or two - please ?
From all that's been posted I don't expect it to be anything more than a bit less current (series resistor) or a bit more current (parallel resistor) in the lighting feed.
Being able to get into one of the fix boxes would answer the question easily. Unless it's potted of course
Failing that looking into a disconnected box through the I/O connections with a DVM would also be a suitable analysis method,
regards,
Jet
Yes it is potted inside the led control module.
ringram said:
V2RAC said:
Mine does it but only in extremely cold weather, as of the last two winters. Dealer won't repair unless the fault can be demonstrated. I told them this was a known problem, (better off talking to nearest wall) What's the odds that it won't occur this winter as so far the weather hasn't been nearly as bad as last year. I insisted on them logging the fault as warranty expires September 2012. 
PM Dougie. There is a technote about this. Your dealer needs beating up. Dont accept no.
There is a note to dealers, and a copy is on here somewhere. I remember several members having light units replaced last year. If I remeber rightly, thee light clusters a £1000!!!!
desert fox said:
There is a note to dealers, and a copy is on here somewhere. I remember several members having light units replaced last year. If I remeber rightly, thee light clusters a £1000!!!!
This is the paperwork I have from VX.Vauxhall tech bulletin number: 09-TI-04
Condition
One or both the turn signals flash at approximatley double normal flash rate. Condition is normally experienced under low temperature conditions, and flash rate may return to normal when ambient or in-vehicle temperatures increase.
Cause
Turn signal outage direction module specification may cause high flash rate under low temperature conditions
Correction - Vehicle Production
Specification of the module has been revised effective from vehicles built 7th July 2008
Correction - Vehicles in Service
Replace turn signal module, for the affected turn signal only with later part available from normal service parts outlet. Part number has not been revised. All service parts stock has been culled and only revised modules are available from service parts warehouse and distributors. Revised parts are indicated by a yellow sticker on the module housing.
bradwil said:
MatrixXXx said:
Just for reference mine failed again today fast flashing outside temp according to the dash was 2 deg C , but it only fails on a right hand signal the left was fine? Once the car had warmed up it was normal again.
Ditto
Mine seems to favour the right side as well.
Edited by hsv keith on Thursday 15th December 22:52
hi you lot, just having the same problem on the 2009 r8 ls3 on right hand only.this has happened now that the weather is colder-up here in ancient scotia. if i have the car in reverse-ie 12 volt BULB is lit this warms up unit and right hand flashes normally. there must be a temp related thing goin on her.
I had the same problem on my car - It was fixed under the extended warranty however the problem is due the LED rear light clusters.
Unlike normal bulbs whose resistance under load is constant due to it heating to constant operating temp. With LED's the resistance when lit changes with temperature. This response is not linear so as the temperature falls the resistance follows a characteristic curve which lowers its operating resistance at full luminance. This causes the flasher module current to increase which then flips it into high speed mode as it thinks there a failed bulb.
A similar problem occurs if you fit after-market LED rear cluster to a car that was equipped with normal bulbs (which basically what HSV did with the rears on the E-series 2 models).
I posted a link in an earlier thread on this topic (about 12 months ago) can't find it now though.
The fix involved changing the bias resistor in the flasher module for variable one which can be adjusted to change the flip current threshold of the electronic "flip flop" oscillator
The perfect solution would be to add current regulator circuit between the rear lights and the flasher driver balance the load resistance to a constant value but this requires some electronic know to design an anti response to the LED falling resistance.
Unlike normal bulbs whose resistance under load is constant due to it heating to constant operating temp. With LED's the resistance when lit changes with temperature. This response is not linear so as the temperature falls the resistance follows a characteristic curve which lowers its operating resistance at full luminance. This causes the flasher module current to increase which then flips it into high speed mode as it thinks there a failed bulb.
A similar problem occurs if you fit after-market LED rear cluster to a car that was equipped with normal bulbs (which basically what HSV did with the rears on the E-series 2 models).
I posted a link in an earlier thread on this topic (about 12 months ago) can't find it now though.
The fix involved changing the bias resistor in the flasher module for variable one which can be adjusted to change the flip current threshold of the electronic "flip flop" oscillator
The perfect solution would be to add current regulator circuit between the rear lights and the flasher driver balance the load resistance to a constant value but this requires some electronic know to design an anti response to the LED falling resistance.
Edited by ninjasta on Friday 16th December 23:41
It's the rear LEDs that must be the problem I was on about resistance before but LEDs function completely differently to filament bulbs, and it could be current related I found that if on reverse or had the brake lights in when parked it dident fail , as soon as you put it into park you get the rapid flashing again, a resistor would still increase the current flow, just waht value, and what range of current is it looking for.
Any one got any contacts at Holden ?
Any one got any contacts at Holden ?
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