Thread: central locking pump /security pump module
View Single Post
Old Feb 5, 2010 | 07:46 PM
  #3 (permalink)  
onehundred80's Avatar
onehundred80
Senior Member
Joined: Apr 2006
Posts: 25,432
Likes: 648
From: Ontario
Default Re: central locking pump /security pump module
Originally Posted by bibbs
Looking for where the pump is in a 2004 coupe. The 2004 manual says its in the luggage compartment under the rug next to the jacking system. Its not there and it it not shown in the 2006 parts manual. In all the technical data it is shown as part of the security system.
It's on the right hand side in the top right hand corner, To get at it remove the mat and the trim that is on the side of the car which hides the wheel well and gas fill pipe from the gas cap.
For your interest I copied the following which explains how the system works.
I am looking for a photo on the site and it shows the pump. No luck so far though.
VEHICLE LOCKING/UNLOCKING
To unlock, the Body Control Module is actuated by the SKREEM. The Body Control Module then sends the signal
to the Central Locking Pump/Security System Module (CLP/SSM) via the Controller Area Network (CAN) Bus. The
CLP/SSM pump motor starts running and supplies air pressure. The door lock actuators are pressurized. When a
pressure threshold is reached in the system, the pump is switched off by an internal pressure switch. The pressure
in the system is then released by the CLP/SSM and the unlocking operation is completed. The locking procedure is
accomplished in a fashion opposite to the unlocking operation. However, the next time the remote control button is
pressed, the CLP/SSM is also actuated by connecting it to ground by the second control lead on the SKREEM. The
direction of rotation for the CLP/SSM pump motor is reversed, thereby providing the vacuum required to lock. In
order to avoid unlocking the vehicle unintentionally, the vehicle is relocked by the CLP/SSM via the SKREEM.
Relocking is accomplished after unlocking with the remote control when: a door is not opened within 40 seconds,
the key is not inserted into the ignition lock, the interior power door lock switch is not actuated, only the liftgate is
opened after unlocking. The CLP/SSM reads the signals (door contacts, trunk lid, interior power door lock switch)


and actuates the power door lock actuators. The vehicle security alarm is also activated by the relocking function.
 
Reply
1