Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: terry paget on 16 August 2016, 08:40:17

Title: Central locking fault
Post by: terry paget on 16 August 2016, 08:40:17
2001 petrol 2.2 saloon
This is the car I bought on e-bay for £196 in July. I sorted it and handed over to my son 9 days ago. It has developed a lockiing fault He complains:
I have one question for you - how easy is it to disconnect the car alarm?  The car remote only responds when the car is unlocked at the drivers side - unfortunately the remote doesn't lock that, so it has to be done manually.  It did previous unlock the rest of the car but not any more - which means I have to now manually unlock the driver's door first, which sets off the alarm. 
Will swopping the driver's door remote motor unit cure it?




Title: Re: Central locking fault
Post by: Kevin Wood on 16 August 2016, 08:43:57
Might well be the driver's side locking motor as that contains a switch that triggers the (un)locking of the other doors. See the guide for replacing the microswitches inside. Only costs a couple of quid. :y

Alarm and central locking are all integrated into one ECU, so not easy to disable.

Shutting the driver's door and reaching in and locking the car through the rear door, then shutting that, disables the alarm.
Title: Re: Central locking fault
Post by: terry paget on 16 August 2016, 14:03:49
Thanks. I have found a spare door lock and motor labelled DRIVER in my spares heap, so will try that.
Title: Re: Central locking fault
Post by: biggriffin on 16 August 2016, 15:14:37
Remove power sounder., servo motors in front doors the same, f/l and pfl use different plug.
Title: Re: Central locking fault
Post by: terry paget on 16 August 2016, 17:11:38
Remove power sounder., servo motors in front doors the same, f/l and pfl use different plug.
Thanks. Plugs might be a problem. Sick car is X reg 2.2, donor car was R reg 2.0. Will recover sick car from Chippenham and investigate.
Title: Re: Central locking fault
Post by: Tick Tock on 16 August 2016, 18:08:08
WTF do I know? .... assuming removal of PS will help keep the car free of sooty deposits, but won't stop the alarm going off?

Correct me if I'm talking 'dangle berries'  ;D ;D
Title: Re: Central locking fault
Post by: Shackeng on 16 August 2016, 18:19:57
WTF do I know? .... assuming removal of PS will help keep the car free of sooty deposits, but won't stop the alarm going off?

Correct me if I'm talking 'dangle berries'  ;D ;D

My alarms still work, with both PS removed. :y
Title: Re: Central locking fault
Post by: Tick Tock on 16 August 2016, 18:34:36
So do mine  :y
Title: Re: Central locking fault
Post by: terry paget on 16 August 2016, 21:10:40
I accept I could remove the power sounder, which would solve son's honking problem. It would not improve his central (un)locking problem, though. I hope changing the driver's door lock and motor will solve both problems. I may have a spare, I may not.
Title: Re: Central locking fault
Post by: terry paget on 17 August 2016, 11:38:48
Just read Tunnie's excellent guide on how to change door locks. He did it on a 2001 2.2CD. My sick car is a 2001 2.2CDX. Door motor part no. he gives is 90493702, same as my spare. The plug has six wires to it. I am wondering if only the driver's door motor utilises all six.
Title: Re: Central locking fault
Post by: omegod on 17 August 2016, 11:44:39
I'm pretty sure plugs don't differ between PFL and FL for the motors  :-\  changed plenty and sold loads of em , do feedback when you find out
Title: Re: Central locking fault
Post by: Doctor Gollum on 17 August 2016, 14:51:45
I accept I could remove the power sounder, which would solve son's honking problem. It would not improve his central (un)locking problem, though. I hope changing the driver's door lock and motor will solve both problems. I may have a spare, I may not.
It won't...

Powersounder only sounds if a specific sequence of events is not followed, or it or the alarm horn are unplugged whilst the alarm is triggered.

Alarm horn is next to powersounder under drivers scuttle :y
Title: Re: Central locking fault
Post by: terry paget on 18 August 2016, 20:32:49
Might well be the driver's side locking motor as that contains a switch that triggers the (un)locking of the other doors. See the guide for replacing the microswitches inside. Only costs a couple of quid. :y

Alarm and central locking are all integrated into one ECU, so not easy to disable.

Shutting the driver's door and reaching in and locking the car through the rear door, then shutting that, disables the alarm.
Thanks for the locking tip, Kevin. Son reports that works a treat.
Title: Re: Central locking fault
Post by: terry paget on 20 August 2016, 20:36:12
I'm pretty sure plugs don't differ between PFL and FL for the motors  :-\  changed plenty and sold loads of em , do feedback when you find out
All my plugs were the same size, all my spare lock motors same part no. GM 90493702. Driver's door sockets used all 6 pins, other doors only three. Job is now complete, all faults cured. Thanks for all advice.