Central Locking System Functions: Timed-Arrest

An timed arrest circuit is provided because the assembly motors are always operated up to their stops. An internal counter is increased by a value of 1 each time it is actuated. This counter is reduced by a value of 1 after a specified period of time.

The timed arrest circuit engages if the counter exceeds a specified value on account of permanent actuation. All the operator prompts for the Central Locking are forwarded but no longer executed.

The door modules and the Power Module signal via the K-CAN P to the Central-Locking master in the CAS that an assembly is now in timed arrest status. The ZV master in the CAS then outputs an overall status "ZV assembly, timed arrest circuit" for all the users.

The timed arrest circuit is disengaged by the door modules and the Power Module when the signal "ZV assembly, timed arrest circuit" is removed. There is also an timed arrest circuit for trunk-lid unlocking. The anti-repeat circuit is ignored during the crash unlocking function.