Hi all, need a little help.
I have a rangerover p38 in for a none start.
two fault codes 0039 imobiliser code incorrect and 0148 alarm signal fault. the alarm seems to work ok and the dash light goes out and entering the eka makes no difference. Looking at live data the imobiliser status shows ok but there is no rpm reading, I've scoped the crank sensor, it's giving a signal but only about half a voltage of amplitude, not sure if the imobiliser would affect the rpm in live data or not.
So I'm a little stuck, is it imobiliser or crank sensor fault. should I still be able to see rpm if the imobiliser is faulty?

Any help or info would be appreciated, Autodata has nothing on these.

Chris