How to Test If Your Ghost Immobiliser is Working Properly

There are a few signs that can indicate a potential problem with your Ghost immobiliser. One of the most obvious is the inability to start your vehicle even after correctly entering your disarm sequence. 

If the engine cranks but doesn’t fire, or if there’s no response at all when you turn the key (or press the start button), the immobiliser might be preventing the engine from running. 

Similarly, if your vehicle has a stop/start function and it fails to restart automatically after stopping, even when conditions are normally met for stop/start activation, this could suggest the immobiliser is interfering. 

Unusual warning lights or error messages on your dashboard, especially those related to the engine management system or immobiliser, could also point to a problem. Additionally, if you find you can start the car without entering the disarm sequence at all, the immobiliser is clearly not functioning as intended. 

Finally, if you attempt to enter service/valet mode (to temporarily disable the immobiliser for servicing) and are unsuccessful, or if the indicator light flashes an unusual sequence of flashes (indicating an error code as per your manual), this is a strong indication of a fault. If you observe any of these signs, 

Why would my Ghost immobiliser not work?

Although a Ghost immobiliser is a sophisticated piece of security technology, like any electronic device, there are factors that can cause it to malfunction:   

• Incorrect Code Entry: The most common reason is simply entering the disarm sequence incorrectly. It’s crucial to be precise with the button presses and timing.
• Installation Errors: Improper wiring or connections during installation can lead to intermittent faults or complete failure. 
• Device Failure: Although rare, the immobiliser unit itself could develop a fault due to component failure or damage.   
• Software Glitches: Like any software-driven device, the Ghost immobiliser’s software could experience glitches or bugs that affect its operation.   
• Compatibility Problems: In some cases, compatibility issues between the immobiliser and the vehicle’s electrical system can cause conflicts and malfunctions.   
• Electrical Issues with the Vehicle: Problems with the car’s battery, wiring harness, or other electrical components can interfere with the immobiliser’s functionality.   
• Interference from Other Devices: Although unlikely, strong electromagnetic interference from other aftermarket devices or external sources could potentially disrupt the immobiliser’s operation.

How to test if your Ghost Immobiliser is working properly

1. Enter Service/Valet Mode

This mode temporarily disables the immobiliser, allowing you to test if it’s functioning correctly. To enter this mode:

• Turn on the ignition but don’t start the engine.
• Enter your disarm sequence (the button presses you normally use to start the car).
• Within 10 seconds of entering the sequence, press the accelerator pedal 5 times.
• The indicator light should flash 5 times to confirm entry into service/valet mode.

      2. Test Stop/Start Functionality

If your vehicle has a stop/start function, this is a good way to test the Ghost immobiliser.

• Drive the vehicle for a short period to ensure the engine is warm and the battery is sufficiently charged.
• Stop the vehicle and allow the stop/start system to activate.
• If the engine restarts automatically without you entering the disarm sequence, the Ghost immobiliser is working correctly.

    2. Check for Error Codes 

If you suspect a problem with your Ghost immobiliser, you can check for error codes.

• Turn on the ignition but don’t start the engine.
• Enter your disarm sequence.
• Count the number of flashes on the indicator light after entering the sequence.
• Refer to your Ghost immobiliser manual to identify any error codes.

Important Notes

If you’re having trouble entering service/valet mode or if you encounter any error codes, consult your Ghost immobiliser manual or contact a professional installer. In most cases, it is a good idea to visit the service that originally installed your Ghost Immobiliser, as they know the location of installation, and can remove or repair the system swiftly if needed. 

You should regularly test your Ghost immobiliser to ensure it’s functioning correctly. Also, if at any point you change your vehicle’s battery, you may need to re-enter your disarm sequence.

Ghost Immobilisers – Manchester and beyond