Runnig lights gone too !

[Pedrodasdas]

I have already check all those fuse with a tester, no luck, still looking. Thanks.

[Pedrodasdas]

Update: Still working on the problem.

Found out there are no fuses controlling the lights, just a Big Magic Box under the dash. Why MB has to put computer everywhere ???? Drives me creazy !

So far, I have isolated section of lights:
I can make the front identification markers works.
I can make the rear identification markers works.

If I try to connect both at the same time, everything goes out.

Why ? why ? why ?

Can it be that 10 markers draw too much current ? It was working before !

[Pedrodasdas]

Update of the update:

It is exactly that. If I put too many lights, the computer that runs the light shut off. Can you imagine that ?????

The only solution: Go to MB dealer to have the computer reset with the right amp.

My solution: Run a new wire from the fuse box under the driver's seat to the main light wire at the rear. Fuse number 2 is free and comes on only when ignition is ON.

I will let Freightliner dealer take a look at it on my way South next month and have the oil change at the same time.

[Pedrodasdas]

Final post:

Problem: All running lights are gone.

Cause by: A computer monitor the Amps that goes to the light. Factory set is for 4 bulb lights. FR and MB has to fooled the system so it will provide enough Amps for 12 markers and 4 LED's. Each time the system cut-off, it will reset to factory set and will cut the power.

Solution A: Go to MB dealer to have the computer reset to 16 lights, it will probably cost you around $150.

Solution B: Run a new power wire from battery or fuse box to the FR light panel hidden in the hook-up compartment. Connect it to a relay and use the MB wire to feed the relay. That way, the computer will never feel overcharge. Damn I hate computers in vehicle.