Steering Lock: cut one wire. /switch optional

bdl99

Reconnecting the brown wire can be done at any time and the lock will sort its self out. It is only the disconnecting that has different results depending on the state the lock is in when the brown wire is disconnnected

Turning the switch off (disconnecting the brown wire) with the lock disengaged is what most people are looking for, where the lock isn’t in use and therefore can't fail
Turning the switch off (disconnecting the brown wire) with lock engaged would effectively be an additional security measure, because without knowing where the switch is (and turning on) you won't be able to start the car
Turning the switch on (reconnecting the brown wire) the lock will operate as normal, as if the harness was not installed


For example if you reconnected the brown wire while the lock should be off it would stay off and engage the next time it was supposed to.