I got this car in the off, the customer says that 1 day earlier the particle filter light came on, then it went out and the engine light came on.

In diagnosis I have P1435=particulate filter regeneration and P1525=not decoded, I tried deleting err. but they don't clear.

I asked the customer to do 25 km at130 on the motorway with a full tank, thinking it was regeneration but nothing.

I thought about the defective temp. sensor 2 (at the end of the part. filter), but I'm asking if anyone has already experienced this and can give me some tips (and if they have the P1525 decoder).

 thanks in advance bye