Vauxhall Locksmith
The Vauxhall immobiliser is used in conjunction with the vehicle engine ECU to immobilise the vehicle. The first systems were fitted to petrol vehicles and subsequently fitted to diesel vehicles from 1995 Model Year. The immobiliser system main function is to inhibit starting.
Immobiliser Control Unit
The immobiliser's function is to transmit the start signal to the engine management ECU after it has read the transponder code. If the code is recognised, the immobiliser sends the signal and the ECU compares the code with what is programmed.
If the signal is incorrect the engine which is allowed to start initially is then switched OFF. If there is a malfunction then the engine check light mounted in the instrument panel will flash.
The system uses what is called an IMO (Immobiliser Signal Code) signal to talk to the ECU system or for diesel vehicles the fuel cut-off solenoid.
The control unit can only be re-programmed if the necessary security code is entered, which is found on the customer vehicle information card (CAR PASS).
The key fob contains a small electronic circuit (transponder) which is powered when in close proximity to the control unit using cordless voltage power. Each transponder has a different code for security.
Car Pass
The security code consists of a 4 digit number and can be found on the car pass. If you have lost the car pass with security details, we can obtain the code for you either from the car or from the dealer (to obtain the code from the dealer we will need a copy of your logbook). Lost/Stolen Key
If you have been unfortunate enough to lose or have your key stolen from you don't worry we are here to help you. We can replace and remove your old lost/stolen key from your car system and have you back on the road usually within the hour.
The dealer's solution to a lost/stolen key is to change the ECU and provide you with a key which can cost £900. Also you will need to take the car to them. We can replace your key without replacing your ECU. So don't delay, give us a call. Remember we are not a call centre - we dispatch our own car locksmiths.
Spare Key
If you are forward thinking you will always have a spare car key. This will save you money in the future if you lose your car key. We can cut and program a spare key for you. In some cases we don't even need the car, just the key. Give us a call for this service.
Click here to return to the main specific car advice page.
| 
