Fault Code??

[xsoph]

My car has an electric problem and when under a code reader at the garage it came up with the codes:

B3078 - Powersound
B3045 - Immobilizer Low voltage

The powersound is a brand new unit and it's been checked over, so that ok.

Anyone have any ideas what Immobilizer Low Voltage means??

Thanks

Soph

[wkdkris]

If wiring and the batterys fine id say the immob is foooked

[xsoph]

I have been told it could be the battery as it's the orginal, but the car starts ok. The only problem is that the powersound goes off suddenly. The other problem is the glow plugs need changing.