Basically can't start it immobiliser has kicked in can't turn engine over. Can't get a fault code because the red light on console is constantly flickering , got engine warning light on. Have replaced battery previous owner had a standard lead in there so swapped for a ca battery .

The flashing denotes that the immobilizer can not pick up the code in the key. If the red LED when in heat/start position stays on solid and then goes out. this means that the immobilizer has found the key and is not ready for firing of the engine, who ever if the van fails to start after this then yes it may be down to the starter solenoid.
The code is usually repeated about 10 times and will signify a two number code i.e.-. Flash flash pause flash would be code 2,1. These codes assist in diagnosing immobiliser faults. If the light flashes rapidly with a long amount of flashes it usually means the key is not recognised at all. From Fordwiki-.
To do this, turn on the ignition, use your centralized button to enter the digits, several quick presses (example: 2 for digit 2) then a stop of one and a half seconds to confirm the digit and resume, replicate the process until you have entered the entire code. This should allow your Ford Fiesta to start without having to remove the immobiliser.
Transponder: Transponder is ready programmed to start the vehicle. If you don’t see your car model listed don’t worry because we may still be able to assist you. Please give us a call on (0044) 0116 276 7054; we will be happy to help you. Mike Hayes 18/12/2023. Toyota Avensis Remote Key Fob (3 Button) Repair.

Hi Lenny i read every your post please help me i have 2008 mondeo 2.0 diesel automotic transmission 3 days ago when i start engine .me come message in the dasboard engine malfunctioln.. i try again again but dont start engine after that come message in the dashboard gearbox problem i swict off everything and wait 5 minutes engine start but i

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ford focus c max immobiliser problems