2003 MGZR central locking problems

[rovermarksy]

It sounds like you need to replace the CL relay in your pektron SCU, which is behind your glovebox. All you need is here:

http://forums.mg-rover.org/showthread.php?t=384938

tecnozen is indeed the man for the job.

[leeleecoggan]

does that apply to my model it says in technozen's post that its for facelift models??

[Roverlike]

As I understand you have square fob and by that 5AS alarm type, not Pektron type as you would have round fob with logo in the middle, which is for facelift models.

[leeleecoggan]

Originally Posted by Roverlike

As I understand you have square fob and by that 5AS alarm type, not Pektron type as you would have round fob with logo in the middle, which is for facelift models.

so the link above does not include my vehicle!?

[Roverlike]

Originally Posted by leeleecoggan

so the link above does not include my vehicle!?

Above link covers Pektron systems.

[leeleecoggan]

Originally Posted by Roverlike

Above link covers Pektron systems.

any ideas where the a5s alarm system is located? and possible any pics of what it looks like?

[Roverlike]

Originally Posted by leeleecoggan

any ideas where the a5s alarm system is located? and possible any pics of what it looks like?

Here you can see how it looks: http://www.bba-reman.com/content.asp...control_module

Location could be tricky. I am not sure if alarm was placed on another location in year 2003 cars.

Usually 5AS system is behind desh on drivers side, but it could be also behined glove box, or behined central cosole.

[L33t]

Originally Posted by leeleecoggan

new battery installed in the fob but no difference which kinda makes sence if the key wont activate the central locking then theres no chance of the fob doing it! there must be a fault between the central locking controller (whereever that is) and the drivers door!

Have you reprogrammed the fob after changing the battery?
I heard something about having 30 second to change it or you have to reset it by holding the unlock button for a few second?

I'm not sure if this is true because I have only recently got my ZR also.

[technozen]

The 5AS is mounted horizontally above the pedals. Remove it, open it up and see if the circuit board is burnt up.

[SeanZR]

just to let you know lee. i have a spare matching 5as unit ,transponder and fob here. if you wanna give me a shout out i can swap them for you and give it a go. shure you're pretty close to where i live anyway.
btw technozen do i need the matching ecu as well. its just the fob and the 5as came out of a 211i. would this make a difference or do you need the matching ecu for the 5as and fob etc to work

[leeleecoggan]

Originally Posted by technozen

The 5AS is mounted horizontally above the pedals. Remove it, open it up and see if the circuit board is burnt up.

thanks for the advice, if its burnt can it be fixed? can you supply the parts or will i need to send it to you? cheers lee

[technozen]

With a burn up it is impossible to say if it can be repaired until the board can be inspected, if it can't be repaired a replacement can be cloned using the data taken from the original.

[leeleecoggan]

Originally Posted by technozen

With a burn up it is impossible to say if it can be repaired until the board can be inspected, if it can't be repaired a replacement can be cloned using the data taken from the original.

can i use a friends fob and box out of his spares kit in the meantime or will it not work?

[Roverlike]

Originally Posted by leeleecoggan

can i use a friends fob and box out of his spares kit in the meantime or will it not work?

If you have original alarm box and engine ECU then you can not use friends box as it needs to be paired with your ECU.

[leeleecoggan]

Originally Posted by Roverlike

If you have original alarm box and engine ECU then you can not use friends box as it needs to be paired with your ECU.

will this fix my problem if it does turn out to be the 5as unit? cheers

http://www.ebay.co.uk/itm/ROVER-TURB...#ht_538wt_1344

[Roverlike]

Originally Posted by leeleecoggan

will this fix my problem if it does turn out to be the 5as unit? cheers

http://www.ebay.co.uk/itm/ROVER-TURB...#ht_538wt_1344

There is no word which type of ECU this is. It must be suitable for your car, and you can not know that just from this ad without exact number stated on the ECU.

The best way would be that this ECU has the same type number as yours, as in that case it could be suitable, and could fix your problem if it turns out to be the 5as unit.

[technozen]

Check the 5AS first, it may not be the cause of the fault.

[steve0011]

i have the exact same problem with the ignition on the immobilizer bleeps and flashes on the dash pressing the fob deactivates immobilizer and the car starts. tonite i powered up the locking system directly using a battery and the doors/boot lock and unlock just fine.

does the key in the drivers door normally activate the central locking? or just open the drivers door only?
77
i have a spare 5AS and fob is cloning it a diy job?

i checked the boot loom and every single wire has insulation worn off so the 5AS more than likely fried

my final question is.... do i carry on trying to fix this or is there a after market system i could use?

[Roverlike]

Originally Posted by steve0011

i have the exact same problem with the ignition on the immobilizer bleeps and flashes on the dash pressing the fob deactivates immobilizer and the car starts. tonite i powered up the locking system directly using a battery and the doors/boot lock and unlock just fine.

does the key in the drivers door normally activate the central locking? or just open the drivers door only?
77
i have a spare 5AS and fob is cloning it a diy job?

i checked the boot loom and every single wire has insulation worn off so the 5AS more than likely fried

my final question is.... do i carry on trying to fix this or is there a after market system i could use?

Key in drivers door do normally activate central locking. I would assume that if you can not activate C/L by fob, you will not be able to do it by key also as 5AS unit might be "fried".

It would be wise to take out 5AS unit for inspection to see if it suffere electrical damage and is 5AS really the problem.

5AS cloning is not DIY job. You need appropriate tools for such thing.

In case that 5AS is the culprit, then will you go aftermarket C/L way or send 5AS for cloning is up to you. Both ways can be done.

I would assume that 5AS cloning is easier as you have all in place just swap is needed. In case of aftermarket one you would need to play with wires and existing loom.

[steve0011]

thanks for thr reply mate.

i have a spare 5AS does not work as its not matched to the ECU. however, i could use one to repair the other depending on damage. i will pop it open later.

only got the car a few days ago apart from this issue its quite sound, a little scruffy here and there but not bad for the money (£300 for a 2003)