need help! trunk wont open.......
 

ok my trunk just stop workin. i mean like the button in the car and the remote key button doesnt work anymore.. i have to manualy open it with the key. also when i activate my alarm with the key i dont see the blinging signal light anymore.. i get the blinging when i unlock the car tho.. weird it all happen in one day. any idea on how to fix this?

the model would help...

its a 2001 clk 430

Try this -
 

Disconnect the ground terminal from the battery for five minutes and then re-connect. Make certain you have the unlock code for your radio and know how to reset it after you do this. See the manual for your radio,

memory is a little fuzzy but your PSE module should be the culprit. if the trunk mechanism doesnt seem to be working, the lights arent going to flash when you lock it because it still sees the switch for it as "open"

read out the faults in the control module.

I would tend to think the trunk lock is in the lock-out mode. Look in the manual, there is a section in there pertaining to the trunk lock, you put the key in and twist it one way and remove the key, and this prevents the trunk from being opened without the key.
Gilly

ok ima try to Disconnect the ground terminal and then ill look into the pse module... and gilly , that was the first thing i tried...thanks tho , but its not it =/ ill be back after testing.. thanks for all ur help guys..