Headlamps on all the time

[Rell]

Hi, wondered if anyone can help on the following:
Sprinter 511 2008 twin rear wheel.
Headlamps,side lights and rear lights come on and stay on as soon as the ignition switch is turned on even when the the main light switch is in the off position and the engine is not running. Also the 'light out warning lamp' is illuminated on the dashboard. I have disconnected each of the front headlamps in turn and the rear light clusters in turn but it does take the lights out so do not think its a short on the light units. Occasionally the lights will go out for a second or two when driving but come back on. Any help/advise appreciated. Thanks.

 

[grumpyoldgit]

Link to the manual as you don't say if you have steering wheel buttons or not. Different procedure for each set up according to the above info.
http://www4.mercedes-benz.com/manual-trucks/ba/trucks/sprinter/en/index.html

 

[Rell]

fixed

Update - BCM(SAM) is the problem its got internal issues. Thanks