Rover 820 immobiliser

[pete2808]

The immobiliser on my 1996 820si is refusing to de-immobilise! Car is consequently unusable. Have been advised that I need an auto electrician to fix it. Sounds expensive. All advice greatly appreciated.
Thanks.

[Mal7921]

Has it had the battery removed at all? May be worth disconnecting the battery then re-seating all the ECU connectors. Check the wiring loom while your under the bonnet for frayed or possibly snapped wires, especially where it runs near the engine block or any other area subject to vibration and/or heat.

Sometimes it's just corrosion building up on the plugs so unseating and reconnecting the connectors helps. Just make sure you have the key fob and ideally the code from the original handbook so you can de-immobilise using the ignition key if need be!