09-10-2024, 08:30 AM
So an update.
VIDA does not identify any reason for the non working keyless entry. However, I obtained another fob from ebay and programmed it with OrBit and the keyless locking/unlocking with that key works.
The new key is the MS type and although OrBit programmed it OK, it did throw a dtc (CEM-B14DE05) which OrBit did not clear. The VIDA diagnosis suggested that the CEM needs new software but that is apparently only available with the purchase of a new fob with a total cost of about £200. That is the current price but the Volvo indy told me it varies with the wind as Volvo have introduced lots of changes, presumably to try and stop the relay thieves. Volvo (in the UK at least) say get your car serviced by a Volvo dealer and the software will always be the latest, what nonsense! It is time that the UK have "right to repair" laws like the US.
Along the way I did some checks and measurements and discovered that the new MS key sends a slightly higher 433MHz signal than the old keys, something like 3db, when the door handle is touched. I have concluded that the car's sensitivity has dropped a little over time which is why all the old keys no longer work and the new MS key does. And yes I have checked the batteries of the old keys, they are all duracell or varta and the voltage is > 3.1v. Actually the voltage of the new key battery is less than the old ones.
So for the time being at least - it's SORTED.
VIDA does not identify any reason for the non working keyless entry. However, I obtained another fob from ebay and programmed it with OrBit and the keyless locking/unlocking with that key works.
The new key is the MS type and although OrBit programmed it OK, it did throw a dtc (CEM-B14DE05) which OrBit did not clear. The VIDA diagnosis suggested that the CEM needs new software but that is apparently only available with the purchase of a new fob with a total cost of about £200. That is the current price but the Volvo indy told me it varies with the wind as Volvo have introduced lots of changes, presumably to try and stop the relay thieves. Volvo (in the UK at least) say get your car serviced by a Volvo dealer and the software will always be the latest, what nonsense! It is time that the UK have "right to repair" laws like the US.
Along the way I did some checks and measurements and discovered that the new MS key sends a slightly higher 433MHz signal than the old keys, something like 3db, when the door handle is touched. I have concluded that the car's sensitivity has dropped a little over time which is why all the old keys no longer work and the new MS key does. And yes I have checked the batteries of the old keys, they are all duracell or varta and the voltage is > 3.1v. Actually the voltage of the new key battery is less than the old ones.
So for the time being at least - it's SORTED.
MY19 XC60 D5 Inscription Pro (UK)