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cb750chris · 8th September 2020, 20:19

Hi Jules
Sounds like the car is behaving as though the key is still in the ignition?

Just a thought - are you sure the relay clicking in the BCU is actually the door lock relay, and not just the alarm sounder relay - ie the car is not trying to lock but is actually trying to beep the alarm (horn - unless it has powerwash/BBUS fittted)
* Assuming you have access to a T4, have you checked out the list of mislocks (under the security section?) - Mislocks don't generate fault codes - but the last 10(?)are logged
* When you changed the EWS did you check for corrosion on the plug?
* Have you checked the fuses for the EWS side of life?
* Have you checked the key has a transponder fitted (and that the owner hasn't just used the glue method of sticking a transponder to to the ignition coil to use a copy key)
* Would it be worth trying to enable bathrobe locking, leaving the ignition on and seeing if the fault remains?

Regards
Chris

8th September 2020, 20:19	#15
cb750chris Trader Rover 75 Tourer Join Date: Apr 2011 Location: Portsmouth Posts: 849 Thanks: 201 Thanked 292 Times in 200 Posts	Hi Jules Sounds like the car is behaving as though the key is still in the ignition? Just a thought - are you sure the relay clicking in the BCU is actually the door lock relay, and not just the alarm sounder relay - ie the car is not trying to lock but is actually trying to beep the alarm (horn - unless it has powerwash/BBUS fittted) * Assuming you have access to a T4, have you checked out the list of mislocks (under the security section?) - Mislocks don't generate fault codes - but the last 10(?)are logged * When you changed the EWS did you check for corrosion on the plug? * Have you checked the fuses for the EWS side of life? * Have you checked the key has a transponder fitted (and that the owner hasn't just used the glue method of sticking a transponder to to the ignition coil to use a copy key) * Would it be worth trying to enable bathrobe locking, leaving the ignition on and seeing if the fault remains? Regards Chris __________________ Now offering T4 services in the Fareham area Replacement keys programmed / supplied / cut Diesel 135 upgrade available IPK virginisation and T4 matching available Sorry, due to a big change in home circumstances, I am unable to do any large jobs at present, but can still offer evening time diagnostics. Last edited by cb750chris; 8th September 2020 at 21:43..