Checking error codes VR/VS (Revised)

[VRCALAISS]

I got code 48 in my L67 Calais and that is cam angle sensor where is this and how do I replace it

crank angle sensor,it's behind the harmonic balancer.

[Reecey06]

me mates got sorted out n in my ute the engin light comes on when you turn the key then turns off, when you do the dios the engin light turns off then comes back yea, in my ute it doesnt return lol.
and in my vr the fan kicks in but no reading also, is it different in the vr??

[VS Berlina 95]

hey fellas, i got this 1 Code 31 - Theft Deterrent Signal missing what does it mean??