Hello,

I have a 2005 Volvo XC90 with 122K miles on it.

A while back the sunroof drains got clogged and caused water to accumulate in the passenger footwell. This sat for a day or so before we noticed. It has been months since then. I believe my uncle cleaned the drains since then.

As of now, the sunroof no longer works, which I believe may have been caused by my uncle. And there is "Anti-Skid Service required" as well as "Alarm system service required". I got it scanned and there are two codes, P2419 and P2418.

Any idea how to fix these issues? And how do I clean the drains?

 

Ok so I figured out how to clean the drains and the anti-skid service was likely caused by the yaw sensor being corroded to the point of absolute destruction.

That leaves "alarm system service required" and the P2419 and P2418 codes.

I will be changing the battery in the alarm module and see if that clears the alarm service code. If not, I will be changing the alarm module.