pwood999 said:
operate the latch rods manually.
Click to expand...

You will need to turn the drivers door barrel. When the key barrel is removed you can turn the round bit which has a couple of ears on it where the barrel fitted in. This is part of the door lock mech. Then operate the latch rod to open.
 
More progress today. I have found a way to unlock the doors from under the bonnet, even though the car is alarmed. Tested the process on Wife's 3-door 2005, so fairly confident this will work on Son's 2004. The car still remains alarmed at this point, so the process will be to unlock doors, open drivers door, then disconnect battery & replace the lock barrel. After that I should be able to re-connect the battery & disarm using the new key.

Don't think I should put the process on an open forum, but will share via PM if anyone is stuck.
 
Final update to close this one off . . . . my planned process worked perfectly. Drove up to MK today armed with tools, etc. Connected my special wiring adapter, and unlocked the car doors :):). Opening the doors set off the alarm so disconnected battery as planned. Then door card off, and lots of fiddling to lower the latch & unbolt the handle. Replacement barrel installed & reconnected handle & latch. Finally reconnect battery & disable alarm with new key in barrel.

So now the car is accessible & drivable again :). My son has a customer that does fobs, so have advised him to get this sorted asap, so he can then keep the door key for when actually needed.

For future reference: The internal lock-unlock button is definitely disabled when the car is locked with either Key or Fob, so no point in trying the door ajar using air-bag method that locksmiths propose !! Also no point in breaking glass. Neither will help.
 
Surprised an electronic 'unlock' didn't disarm the alarm.

Well done! Don't like breaking in when it can be done non invasively.
 
How to do the bonnet latch part is is well described in various threads. To actually unlock the doors you needs to access the diagnostic lines & have decent diagnostics.

@mowoh as I said in reply to your PM, I would need to see picture of you with your car, and a photo of the V5C showing your details as the owner.
 
pwood999 said:
How to do the bonnet latch part is is well described in various threads. To actually unlock the doors you needs to access the diagnostic lines & have decent diagnostics.

@mowoh as I said in reply to your PM, I would need to see picture of you with your car, and a photo of the V5C showing your details as the owner.
Click to expand...
yes most of the ECUs are on the same diagnostic line, so, even though the 16 pin socket is inside the passenger compartment you will be able to find the wire on the engine ECU and create your own 16 pin socket in the engine compartment.

Very clever.
 
pscan.eu said:
yes most of the ECUs are on the same diagnostic line, so, even though the 16 pin socket is inside the passenger compartment you will be able to find the wire on the engine ECU and create your own 16 pin socket in the engine compartment.

Very clever.
Click to expand...
Exactly, although I called it a "special wiring adapter" to not give away the secret on an open forum. It does require "suitable" diagnostics (I presume yours has the required functions)
 
pwood999 said:
Exactly, although I called it a "special wiring adapter" to not give away the secret on an open forum. It does require "suitable" diagnostics (I presume yours has the required functions)
Click to expand...
It can unlock the doors from the "Actuators" menu of the 27VT CCU. I haven't tried it with the ignition off though.
 
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