Drive Authorization System (DAS)

- Up to the end of model year 1995, a starter lock-out system is installed which interrupts circuit 50 to the starter.
- On vehicles starting model year 1996 (hand-held tester (HHT) Diagnosis Version 46), the remote central locking (RCL) system is enhanced with a so-called drive authorization system (DAS), stage 2 .

The activation of the DAS is initiated by the RCL control module and transmitted to the engine control module via the CAN data bus.

After activation of the DAS, the fuel injection system is rendered inoperative by the engine control module. The DAS can be activated or deactivated with the infrared remote control transmitter or the master key. The engine control module and RCL control module are permanently locked with one another by an identification code. This identification code can not be erased (see HHT actual values "DAS" menu selection 3/6).

Therefore, trial installation of an engine control module or RCL control module from another vehicle is no longer possible.

CAUTION!
If a new engine control module is installed for test purposes only, a maximum of 40 engine starts can be performed before the control modules are permanently locked with one another. After 40 engine starts, the engine control module can no longer be used in any other vehicle.

Additionally, the code number and VIN must be entered (see HHT actual values "DAS", menu selection 3/6).