Land Rover Repair: Immobiliser, engine cranks, immobilisation

Question
I own a Freelander 99 model and my immobilser is giving up what should I do get a new or it the a way to fix this old one, and is there another way of starting it with the red light on

Answer
Hi Tumie,

I don't know a way around this problem.  Yes, I'd replace it with a new one as it is too important to try and repair it.  

Here's some info from LR that explains a few things:

Engine Starting

When the ignition switch is in position II a power feed is connected from the ignition switch to the ECM relay and the ECM. The ECM then initiates 'wake up' routines and energises the main and fuel pump relays.

When the engine cranks, provided a valid mobilisation signal is received from the immobilisation ECU, the ECM initiates throttle control, fuelling and ignition to start and maintain control of the engine as necessary to meet driver demand. If no mobilisation code is received from the immobilisation ECU, or the code is invalid, the ECM inhibits fuel injection and ignition to prevent the engine from starting.


Immobilisation ECU

The immobilisation ECU controls operation of the starter motor to provide the engine immobilisation function of the security system. The immobilisation ECU is secured to the rear of the fascia near the vehicle centre-line.

I hope this info is useful to you,

Best of luck,

JohnMc