![]() The actual key and door handles work fine for unlocking and opening this door. Good luck and please let me know of any errors or omissions.Problem: The driver's side door will not unlock with fob or central locking button. Add/remove grease as required and test the actuator to ensure it operates correctly, before replacing in the car.Īctuator reassembly and car re-installation is the reverse of steps 1 to 4. Too much will increase friction rather than reduce it. Note that the amount of grease is critical. Remove the actuator cam wheel and grease its bottom side cam groove as well as the components as shown on its top side with lithium or other plastic-safe grease. The unpowered free-wheeling phase relies on the mechanism to be correctly lubricated. I concluded that the unlocking operation was failing because of excessive friction in the mechanism, stopping travel during ‘free-wheeling’. Before applying power, clamp the motor in its open housing to prevent its escape. The actuator can also be connected to the cars wiring loom plugs for this process. The mechanism is designed to interrupt current to the motor during part of the unlocking operation during which it ‘free-wheels’ for some as yet unknown reason, possible to reduce noise and vibration? Using a 12v power supply, I confirmed the fault symptoms, by operating the actuator to lock, by applying positive current to pin 5 and negative current to pin 6 and then reversing polarity to unlock. A 3 pin micro switch switches the current from pin 5 to the motor. Polarity reversal is used to reverse the motor for locking/unlocking operations. The motor is powered from pins 5 and 6 in the 8 pin female socket. The mechanism basically consists of a motor driving a rotating cam gear, which locks and unlocks the actuator latch. Once the cover was removed, I examined the internal mechanism for failed components but found none. Step 5 Examine the actuator to determine cause of faulty operation Along the bottom edge, insert and slide a small flat-bladed screw driver between the cover and housing, until the 3 lower clips are also released. Remove the cover by releasing the large clips on the top right and top left of the housing. Remove the 3 torx screws retaining the cover to the actuator housing. It is retained by clips on the top and right side of the housing. Step 4 Open the actuator housing (if actuator is to be repaired rather than replaced) Slide the actuator out behind the window glass support strut. Re-route the cable for the internal door lever behind the window glass support strut. When the actuator is unbolted, reach inside the door frame and disconnect the external door lever rod from the actuator, by levering off the white clip with a small screwdriver.ĭisconnect the two wiring loom plugs. Wind up the window most of the way, remembering the cable tie! From the outside edge of the door, remove the 3 torx screws retaining the actuator. Note the position of the cable tie and also the internal door lever cable and the window glass support strut. Simply swing the door cover up out of the way and tie it to the window frame with a large cable tie Remove the torx screws retaining the cover.ĭo not disconnect the wiring loom plug (to maintain power to the window winder and actuator). Step 2Remove the inner plastic door cover Release the cable from the internal door lever. Support the door card while disconnecting the wiring loomplug inside. These are solid clips and will not break or pull out of the door card. Lever off the door card, by inserting a large flat-bladed screwdriver in the gap under the edge of the door card at the positions shown, starting at the door bottom edge and working your way up both sides as the clips release From under the door armrest, remove the 2 torx screws. This is a relatively easy job and does not require any special tools and equipment other than the following:Īllow about an hour for actuator removal, half an hour for replacement and another hour if the actuator is to be disassembled, lubricated and re-assembled.įrom within the door lever recess, remove the small round plastic cover with a pick, then the small torx screw underneath. Removal and replacement is performed with the car battery connected because power is required during these processes. These procedures apply equally well for replacement of the actuator (part numberC2C30696?) if it is not to be reconditioned. Unfortunately, lubrication requires removal of the actuator from the car and partial disassembly. In this case, I was able to resolve the failure by lubricating the door latch actuator internal mechanism. It would lock consistently, but frequently fail to unlock when the central locking dash button was pressed. The front passenger door of my right hand drive (Australian) 2006 XJR had an intermittent unlocking failure.
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