BA 35101/02/ 03 EN – Edition 1.0 * 35101_02_03b330.fm 3-19
Operation
Enabling (locking) the drive interlock
☞ Apply the parking brake
➥ –seeParking brake on page 3-36
☞ Stop the engine
☞ Remove the ignition key (blue)
➥ The drive interlock is enabled in 30 seconds
The drive interlock remains disabled if the ignition key (blue) is not removed
from the ignition lock!
Disabling (releasing) the drive interlock
Start and stop the engine exactly as described on page 3-16 “Starting the engine”.
☞ The system is enabled 5 seconds after the ignition key is inserted in the ignition lock
☞ Start the engine –seeStarting the engine on page 3-16
➥ The drive interlock is disabled as long as the engine runs
Deleting coded keys
Deleting coded keys is necessary whenever a coded key is lost
• All coded keys are deleted during deletion
• After deletion has been carried out, all existing keys can be recoded
• Deletion is carried out by inserting the master key in the ignition lock and by turning it to
position '1' for a minimum 20 seconds.
• All coded keys are then deleted, and all existing keys can be recoded
• The master key code is not deleted during deletion
Safety functions
The drive interlock remains enabled for 15 minutes and does not accept any valid keys if
more than 5 keys with different invalid codes are inserted and turned in the ignition lock
within 1 minute.
This function avoids 'finding' the correct key by chance by trying different keys. It is only
available if the control valve relay is connected in addition with terminal 30.
The drive interlock remains enabled for 15 minutes and does not accept any valid keys if
several invalid keys have been detected without having set the ignition lock to position '0'.
Valid keys are accepted only after 15 minutes and after the position '0' of the ignition lock
has been detected. This avoids testing keys without actuating the mechanical ignition lock,
e.g. by moving the ignition lock to position '1' by force.
Interruptions of the supply line or other control lines do not disable the drive interlock or
delete data (e.g. data codes). All important data is saved in a non-volatile memory.