[julie]

the immobiliser keeps cutting in on my discovery can anyone help?

 

[dent]

are you referring to the inertia switch under the hood where it shuts off the gas to the engine?
also which engine is it?

 

[Disco1]

If indeed it is the inertia switch, I would replace it. Would hate to have the engine cut out while accelerating onto the highway.

 

[Curt]

Are you talking about the aftermarket "Imobilizer"

:dunno:

 

[Robbynz]

try replacing the battery on the imobiliser switch on your key ring