2006 CLS500 Trunk Lid Control Module
My TLCM (Trunk Lid Control Module) is shot. A relay inside. Can anyone tell me if a "USED" TLCM will work? I found one for $125 off a 2006 CL55 (works in CLS550 and CLS500) that had 40k miles. Was in accident but trunk was untouched.
Someone told me that "IF" the Trunk Lid Control Module was "coded" to another car it will give me nothing but problems.
Is this true? I think that the ABS and Battery Control Modules do get bound to the car and/or their relative equipment but from my reading, the Trunk Control Module does not bond with the car/trunk motor.
Thanks for any help/advice.
Greg
Last edited by ydlee; Nov 30, 2012 at 12:19 PM.
So I shorted the relay to ground and pushed the button, and WALA, the trunk closed, yup right on my stomach/waist. SOB, should of known that may have happened.
So what's happening is the relay is triggering when the button is pushed but not staying close long enough to engage the motor. But when shorted to ground and the relay stays closed, motor works fine.
So - new relay/control module needed.
If you buy a used one and install it and it doesn't work, it could be because it's coded to another car. There is a way to reset the Trunk Control Module and have it coded to your car. My mechanic said he had to do this, but I'm not so sure, cause when I handed it to him, he had it installed in a matter of 30 seconds (car was already torn apart). I was not watching unfortunately. From what I know, the Trunk Module is not a module that gets coded to "specific car", unlike the ABS Module and Battery Control Module.
But if you buy a used one and this happens let me know and I'll tell you how to reset it or put you in touch with my mechanic.
Last edited by RazorV; Dec 27, 2012 at 03:30 PM.
With that said, I would attempt it. Just start pulling stuff apart (take pics if needed so you can put it back together). The TLCM (Trunk Lid Control Module) is located to the outside of the Trunk Lid Arm, Driver's side.
I'd like to know if you buy a used one and you just plug it in and it works. That would confirm my suspicion that the TLCM is not bound to the car.
Thanks and good luck. It saved me over $300 from buying one new.
Greg
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Last edited by thrillrider; Jan 12, 2015 at 08:52 PM.

This may be more than I can handle technically.
I thought this would be a simple module swap.

Im almost afraid to ask but can you walk me through the steps to
"New module needs to be normalized and any fault codes erased using MB DAS. In reinserting old module fault codes “may” have been stored and may need to be erased. If replacing module does not resolve your problem consider replacing potentiometer part 2118201597 (remove plastic cover from drive unit – b24/16). "
I do not understand how to normalize...erase codes or MB Das..but I am a fast learner.
Again when I inserted new module there were no red trunk light and no operation of the trunk
Please do not give up on me

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