VXR8 Indicator Rapid Flash - wierd fault

VXR8 Indicator Rapid Flash - wierd fault

Author
Discussion

preciousmetal

Original Poster:

3,372 posts

176 months

Wednesday 11th September 2013
quotequote all
2007 VXR8 has indicator rapid flash fault. not sure its the usual fault as its only on LH side

have tried another working rear light - still faulty

replaced rear light module - still faulty

indicators flash 3 times normal speed on lane change okay

indicate left, flash normal 3 times (lane change) then rapid flash starts and continues

if you disconnect rear lamp, still does the same fault so not rear light (I think)

possible flasher relay or BCM ??


goldvxr8

2,949 posts

166 months

Wednesday 11th September 2013
quotequote all
preciousmetal said:
2007 VXR8 has indicator rapid flash fault. not sure its the usual fault as its only on LH side

have tried another working rear light - still faulty

replaced rear light module - still faulty

indicators flash 3 times normal speed on lane change okay

indicate left, flash normal 3 times (lane change) then rapid flash starts and continues

if you disconnect rear lamp, still does the same fault so not rear light (I think)

possible flasher relay or BCM ??
Sorry you need a new light
Had the same thing like a lot of us


preciousmetal

Original Poster:

3,372 posts

176 months

Wednesday 11th September 2013
quotequote all
Sorry for the old questions. As never actually seen it happen before. As that's what I thought - the light -

so even disconnecting rear light. Still does rapid flash ?

Also when rapid flashing happens does it always inducate okay for 3 flashes then goes rapid ?

Is this the normal fault regards rapid flashing fault

Thx

magicgreg

280 posts

203 months

Wednesday 11th September 2013
quotequote all
Was there not a harness with connectors on each end that could be placed into the wiring of the light that sorted this issue...I believe Picador sent a couple of units out for this problem that rectified the issue?

I'm sure that someone can shed more light on this...

Z0m81e

249 posts

142 months

Wednesday 11th September 2013
quotequote all
There is a cable that can fix the rapid flash fault but it didn't work for me. If you think its a fault with the light unit you can take the one out from the other side and try it with that the connector is the same. If the problem goes away then there is a light unit problem. In the end I fixed mine by taking the light unit apart and tidying up some of the soldering. If you can solder then honestly the hardest part of this is getting the back off the light unit to begin with as its sealed on.

B7PSG

129 posts

128 months

Wednesday 11th September 2013
quotequote all
I beleive the fault is down to how much current (amps) is being drawn by the light unit James from what I've read..

ARAF

20,759 posts

223 months

Wednesday 11th September 2013
quotequote all
B7PSG said:
I beleive the fault is down to how much current (amps) is being drawn by the light unit James from what I've read..
yes Picadors did the patch leads.

preciousmetal

Original Poster:

3,372 posts

176 months

Wednesday 11th September 2013
quotequote all
ARAF said:
B7PSG said:
I beleive the fault is down to how much current (amps) is being drawn by the light unit James from what I've read..
yes Picadors did the patch leads.
Are the patch leads a mod to the existing loom / module ?

ARAF

20,759 posts

223 months

Wednesday 11th September 2013
quotequote all
preciousmetal said:
ARAF said:
B7PSG said:
I beleive the fault is down to how much current (amps) is being drawn by the light unit James from what I've read..
yes Picadors did the patch leads.
Are the patch leads a mod to the existing loom / module ?
I don't have them, but I think they are. Basically, you unplug the unit from the loom, and the patch lead has male connector at one end, and female at the other. I'm sure someone that has one will confirm.

preciousmetal

Original Poster:

3,372 posts

176 months

Wednesday 11th September 2013
quotequote all
ARAF said:
preciousmetal said:
ARAF said:
B7PSG said:
I beleive the fault is down to how much current (amps) is being drawn by the light unit James from what I've read..
yes Picadors did the patch leads.
Are the patch leads a mod to the existing loom / module ?
I don't have them, but I think they are. Basically, you unplug the unit from the loom, and the patch lead has male connector at one end, and female at the other. I'm sure someone that has one will confirm.
Thanks Ian

preciousmetal

Original Poster:

3,372 posts

176 months

Wednesday 11th September 2013
quotequote all
ARAF said:
preciousmetal said:
ARAF said:
B7PSG said:
I beleive the fault is down to how much current (amps) is being drawn by the light unit James from what I've read..
yes Picadors did the patch leads.
Are the patch leads a mod to the existing loom / module ?
I don't have them, but I think they are. Basically, you unplug the unit from the loom, and the patch lead has male connector at one end, and female at the other. I'm sure someone that has one will confirm.
Thanks Ian

HSV Keith

315 posts

150 months

Wednesday 11th September 2013
quotequote all
I have the leads on mine from picador. my indicators only went wrong in cold weather though.
the lead fixed my problems and they supplied and fitted it for free. not sure if that's still the case.

R8OMG

176 posts

130 months

Wednesday 11th September 2013
quotequote all
I had this problem with rhs flash. Put in patch leads both sides which fixed rhs but lhs threw a wobbly. So ive just patched rhs. Weird!

R8OMG

176 posts

130 months

Wednesday 11th September 2013
quotequote all
I had this problem with rhs flash. Put in patch leads both sides which fixed rhs but lhs threw a wobbly. So ive just patched rhs. Weird!

donk r8

2,755 posts

196 months

Wednesday 11th September 2013
quotequote all

I have a pair somewhere you can borrow to see if its that..............;)

preciousmetal

Original Poster:

3,372 posts

176 months

Thursday 12th September 2013
quotequote all
donk r8 said:
I have a pair somewhere you can borrow to see if its that..............;)
Thanks for the kind offer Chris. Would appreciate this if possible. Trying to eliminate causes. Will also try another light aswelll

James

MatrixXXx

653 posts

152 months

Thursday 12th September 2013
quotequote all
the ECU measures the resistance of the light circuit if it goes out of tolerance it will rapidly flash the indicator as a warning to the driver .

in cold weather the resistance would drop and set off the warning, the patch leads put a resistor between the feed to the light and neg(earth) its from memory about 360ohms i posted the exact resistance some time ago.

if you try the other lamp assuming the connections are the same and it does the same thing then there must be a wiring fault, you need to measure the wire resistances to see if there is any difference.

the soldering on these LEDs is a know problem , it may be worth checking the soldering and redoing any suspect joints if you can use a soldering iron. could save yourself a few hundred pounds!!

preciousmetal

Original Poster:

3,372 posts

176 months

Thursday 12th September 2013
quotequote all
MatrixXXx said:
the ECU measures the resistance of the light circuit if it goes out of tolerance it will rapidly flash the indicator as a warning to the driver .

in cold weather the resistance would drop and set off the warning, the patch leads put a resistor between the feed to the light and neg(earth) its from memory about 360ohms i posted the exact resistance some time ago.

if you try the other lamp assuming the connections are the same and it does the same thing then there must be a wiring fault, you need to measure the wire resistances to see if there is any difference.

the soldering on these LEDs is a know problem , it may be worth checking the soldering and redoing any suspect joints if you can use a soldering iron. could save yourself a few hundred pounds!!
it does it with or without rear light and module connected so not sure what that means ??

B7PSG

129 posts

128 months

Thursday 12th September 2013
quotequote all

B7PSG

129 posts

128 months

Thursday 12th September 2013
quotequote all
Also this...

Turn Signal Has High Flash Rate

Vehicles:
VXR8 – All Models

Condition:
One or both turn signals flash at approximately 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 detection 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 July 7, 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.

Note
Due to wiring revisions which are not related to this issue, specification of the turn signal lamp
and module was revised effective at breakpoints indicated below. Modules are not
interchangeable between vehicles built before and after this breakpoint, Vehicles built both
prior to and after this VIN breakpoint may experience the high flash rate condition, and
specification of both part numbers has been updated to prevent this condition.

Up to VIN 6G1EX55U98L938935 92199982
From VIN 6G1EX55U98L938935 92213810