Help - No headlights or full beam

Z

Zikim

Active member
Hope someone can help, I have "lights" warning light on dashboard and have no headlights or full beam lights on both sides of car. I do have side lights and indicators. Can anyone help and how I can diagnose the fault - LCM?

Thanks
 
I would check the fuse first, if the fuse is ok then check you have voltage reaching it-it could be the switch.
Rob
 
I have checked all the fuses and they're all ok. I don't even have flash when I pull back the indicator stalk even though I get the blue "flash" indicator on the dash, which suggests that it is not the light switch.
 
From WDS:

Emergency mode

Independent hardware is provided in order to maintain the functions necessary for driving safety in the event of the control unit failing.

If the light switching centre is in emergency mode,
•Tail lights and dipped beam lights are switched on at terminal 15 irrespective of the position of the corresponding light switch

•Left and right brake lights are switched on at terminal 15 and the brake light switch operated

•Direction indicators, hazard warning lights, full beam, headlight flasher, fog lights and rear fog lights cannot be switched on.

•Diagnosis is not possible


If in emergency mode, the light switching centre must be replaced.


So it doesn't sound like the LCM has failed. There are no fuses for high and low beam, they operate directly from the LCM.
Have you checked the bulbs with know good ones? Or your own in another vehicle?
Battery disconnect to reset?
 
Thanks Scooba_Steve, there may be some hope that it isn't the LCM. I will have to investigate further later today.
 
I can't see that it could be much else except connections? There could be an internal LCM fault but I would hope that would show up when it self tests.
Bit baffling tbh, but might be incredibly simple to resolve!
 
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