Electrical issues clk55 amg - Mercedes-Benz Forum
 
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post #1 of 2 Old 03-28-2016, 03:28 PM Thread Starter
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Thumbs down Electrical issues clk55 amg

Hello fellow Benz fans. I hope all is well.
Here's is my question. 03 CLK55 Amg Benz. about 150K on it. Security system has already died. Now the trouble is - there are no marker lights - only the safety lights and no power to the tail section unless the key is on.
I've checked fuses, pulled battery cable for 15 minutes, however tail section is still non functioning. Further twist, with the key fob the doors will lock/unlock, but no panic function. no lights, no horn - nothing.
I am suspecting a bad security system board that has disabled the tail section and panic functions. But there should be power to the brake light with or without the key on. Do I have a computer board issue? What say thee great ones? I appreciate any and all advice. The car is due for inspection - OUCH!
Also the light switch functions seem to function fine.

Last edited by rcalacino; 03-28-2016 at 03:30 PM. Reason: Type-o.
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post #2 of 2 Old 03-29-2016, 07:50 AM
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Sounds to me like a SAM module malfunction but without fault codes it is impossible to say. A fault code inspection will narrow this down.

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