Functional Description

General

The door lock heating system (TSH) is activated and monitored by the central locking module II (ZVM II). Power Locks for description of the central locking module II (ZVM II).

The door lock heating is activated by way of a microswitch on the door handle of the driver's door (door handle contact). A heating coil which heats the lock is mounted on the locking cylinder of the driver's door. Power is supplied to the heating coil via an external relay.

Switch-On Conditions

- 1. Vehicle locked for at least 35 seconds.

- 2. Lift door handle of driver's door for at least 5 seconds.

The door lock heating can be activated 3 times within 16 minutes. An inhibit function is then active for 16 minutes. This function can only be reset prematurely by unlocking the vehicle.

Switch-Off Conditions

- 1. Automatically after 35 seconds.

- 2. Vehicle is unlocked.