[heze]

Good morning all,

My E70 (US) is equipped with EUR seats. This is why I always have an error concerning the passenger seat occupancy matt. The differences between both systems:

US passenger occupancy matt is able to distinct children from adults
EUR passenger occupancy matt is only able to detect ‘something’ on the passenger seat.

US passenger occupancy matt is connected to pin 51 of the ACSM module.
EUR passenger occupancy matt is connected to pin 47 of the ACSM module.

I checked the square wave to the pin which is going into the ACSM module. The duty cycle of this square wave changes when the weight on the seat changes so this occupancy matt is functional.
I changed the wire from pin 51 to pin 47 on the ACSM module.

I changed the following coding:
SBE1 = aktiv (was nicht_aktiv) (SBE1 = EUR occupancy matt)
OC3 = nicht_aktiv (was aktiv) (OC3 = US occupancy matt)

Now the ACSM error changes to a communication fault. The module clearly sees the square wave signal from the occupancy matt, but there is still something not right.

Does anybody know which coding also needs to be changed in the ACSM module to read an EUR passenger occupancy matt?

Thanks in advance and best regards Hendrik