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Guy
Member Since: 05 Jul 2005
Location: Sitting Down, Facing Front
Posts: 1264
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| Anyone got a wiring diagram/manual? |
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I posted a problem I had with xenon shutters 'sticking' in this thread a while ago. In spite of two visits to the dealer, they haven't been able to replicate the symptoms in the workshop but it is still occurring; normally after using full beam for some time. Luckily, all three occurrences I have had have been on quiet country roads, with little oncoming traffic to annoy. Switching the lights off and on again doesn't clear the fault, although it always clears itself overnight.
It affects both lights so I am assuming there is a relay or control module of some kind further up the chain that is sticking and is the real culprit. Can anyone shed any light on this (ha, ha, no pun intended).
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 2nd Jan 2008 2:29 pm |
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Slimer
Site Moderator
Member Since: 06 Jan 2005
Location: Last Exit to Nowhere
Posts: 16295
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ISTR Mossy had this issue and his dealer replaced the headlight unit under warranty so sounds like it's a mechanical problem with the actual shutter
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| 2nd Jan 2008 2:32 pm |
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Guy
Member Since: 05 Jul 2005
Location: Sitting Down, Facing Front
Posts: 1264
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Yes he did (see the thread I linked to). But his was just one light and it could be cured by tapping the unit. My fault seems to be different which is why I am suspecting the control circuitry. Whatever happens it'll be a warranty fix. Trouble is, short of taking T.H. White's Service Manager with me wherever I go for the next week or so, it's difficult for me to demonstrate the actual fault!
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| 2nd Jan 2008 2:42 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368
 
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Guy,
Pm me an email address and i will forward the wiring diagrams .. G4 Gone ...but not forgotten
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| 2nd Jan 2008 3:15 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368
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Just found this if it helps ..
The xenon headlamp is known as bi-xenon and operates as both low beam and high beam headlamp unit. The xenon
lamp or High Intensity Discharge (HID) lamp as they are sometimes called, comprises an ellipsoidal lens with a solenoid
controlled shutter to change the beam output from low to high beam.
NOTE :
If the lighting control switch is in the OFF position, the xenon lamps do not operate when the high beam 'flash'
function is operated. If the lighting switch is in the headlamps position or AUTO position with the low beam lamps
active, the xenon low beam will remain on when the high beam 'flash' function is operated.
The xenon headlamp system is controlled by the CJB using a control module for each headlamp and an igniter. The
control modules and the igniters provide the regulated power supply required to illuminate the xenon bulbs through their
start-up phases of operation. G4 Gone ...but not forgotten
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| 2nd Jan 2008 3:25 pm |
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Guy
Member Since: 05 Jul 2005
Location: Sitting Down, Facing Front
Posts: 1264
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Thanks Wiggs - you have a PM (possibly two as my 'puter is playing silly bu***ers!)
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| 2nd Jan 2008 4:24 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368
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No pm's yet !!!! G4 Gone ...but not forgotten
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| 2nd Jan 2008 5:08 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368
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Guy,
Have sent you a couple of emails ..you might get 2 lots as my works sever is playing up ..
let me know if you recieve them .. G4 Gone ...but not forgotten
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| 2nd Jan 2008 7:47 pm |
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Guy
Member Since: 05 Jul 2005
Location: Sitting Down, Facing Front
Posts: 1264
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Wiggs - all received. Many thanks. I think the dealer has also conceded now and will try swapping the headlights for known good units. At least I can go armed with information!
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| 2nd Jan 2008 9:27 pm |
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