Immobiliser

[Daveevans0]

I have had my 2012 300c parked up for 10 months (company car) I started it every week and drove up and down my drive then I went to NZ on the lions tour, when I came back after a month  the battery was flat , I re charged it, started it no problem but the engine ran for only a few seconds then turned off, now it will not crank and the immobiliser light is operating.

 

Anyone out there know how to cure this

[mikebh8]

There is a back up battery in the alarm module, try that plus if this cars don't get enough current through it will send a signal to the ecu, I started mine ( grand voyager but same concept really) by replacing the battery with a new one.

Leave the positive and negative connected for a while before fitting new battery.

 

 

Hope it helps.