Mercedes CLK W209 320 2004 SRS B1025, B48 Fault code

[Jimbo007]

The SRS system on my car has had many issues, I had a squib 1 and 2 fault had a local garage fit the squib/ angle sensor still the fault came up, then I had a look and the garage fitted it wrong now no fault code but I have a fault code B1025, B48 which I believe to be the passengers seat weight sensor, checked fuses all good checked connections under the seat they look ok and replaced the seat belt buckle fault still won't clear, then used an emulator still no good, I've run out of ideas, any help would be much appreciated.