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540 touring
12-26-2006, 04:33 PM
Hello all
I need some help with my 540 touring. My dashboard display is constantly showing a 'brake light' fault despite the lights working fine. Also when I switch on the headlights it shows faults for dipped beam, tail light. Also the ABS light and traction control light are constantly on . Any advice please ?

thanks

Merry Christmas !!

Brazilianbimmer
12-26-2006, 07:24 PM
Have you checked the lights in the trunk? There is a break light on top of the trunk. I also believe the trunk lights are tied to the same circuit and could give that fault.

shogun
12-26-2006, 09:02 PM
shows faults for dipped beam, tail light. Also the ABS light and traction control light are constantly on . Any advice please ?


dipped beam : are they really off or not?
If they do not work:
You may try
http://www.bmwe34.net/e34main/maintenance/electrical/LKM.htm

ABS light : check the wirings and clean the sensors.

540 touring
12-27-2006, 05:40 PM
dipped beam : are they really off or not?
If they do not work:
You may try
http://www.bmwe34.net/e34main/maintenance/electrical/LKM.htm

ABS light : check the wirings and clean the sensors.


Hello

the lights are working fine, but the dash shows a fault

thanks

phil

Blitzkrieg Bob
12-27-2006, 05:46 PM
the brake light switch

as they wear carbon builds up on the switch and creates resistance and trip s the CCM.

You can try and clean it, they come apart easily.

540 touring
12-29-2006, 05:18 PM
the brake light switch

as they wear carbon builds up on the switch and creates resistance and trip s the CCM.

You can try and clean it, they come apart easily.

Thanks Bob
Where will I find this switch ?

540 touring
12-29-2006, 05:19 PM
Have you checked the lights in the trunk? There is a break light on top of the trunk. I also believe the trunk lights are tied to the same circuit and could give that fault.

Thanks
I'll give it a try

Blitzkrieg Bob
12-29-2006, 05:21 PM
Thanks Bob
Where will I find this switch ?

http://www.bmwe34.net/e34main/maintenance/electrical/brake_switch.htm

Blitzkrieg Bob
12-29-2006, 05:33 PM
http://www.nmia.com/~dgnrg/page_25.htm

540 touring
12-30-2006, 07:18 PM
Thanks for your help Bob. I'll give it a go.
All the best
Phil