Vauxhall Workshop Service and Repair Manuals

Immobiliser with Transponder  

Immobiliser Control Unit, Remove and Install  

  Important!   

If the immobiliser control unit is being replaced, it must be reprogrammed - see corresponding Checking Procedures.  

Notice: 

Because of the different design of the ignition key housing, there are two different assembly sequences.  

In the case of a replacement part, drive-off lock control units without engagement lugs can be exchanged for control units with engagement lugs. In the case of control units with engagement lugs, new ignition lock bezels are necessary. These can also be used in the case of control units without engagement lugs.  

Possibility 1: Ignition Lock Housing Without Engagement Lugs  

  Remove, Disconnect   

Remove signal switch panelling - 5 fastening bolts (arrows).  

Remove ignition key and ignition lock cover. Disconnect wiring harness plug from immobiliser control unit. Unclip immobiliser control unit from ignition lock housing and remove towards front.  

 

1  Control unit immobiliser   2  Ignition lock cover   3  Transponder key   4  Transponder   5  Lock cylinder   6  Ignition lock housing

  Install, Connect   

Slide immobiliser control unit onto ignition lock housing and clamp tightly.   Connect wiring harness plug (2) to immobiliser control unit.   Place on ignition lock cover (1).   Install signal switch panelling.

Possibility 2: Ignition Lock Housing with Engagement Lugs  

  Remove, Disconnect   

Remove signal switch cladding.  

Withdraw ignition key (3) and ignition lock bezel (2).   Withdraw lock cylinder - immobiliser (1) from ignition lock housing (5).   Unlock and withdraw cable harness connector.     Install, Connect    Push on cable harness connector.   Push drive-off lock control unit onto ignition lock housing.   Install lock cylinder.   Insert ignition lock bezel and install signal switch cladding.