General Information

General Functions 

The access/start authorization function is located in the comfort system central control module -J393- and is diagnosed under diagnosis address "05 - access/start authorization". Partial scopes are diagnosed under "46 - central module Comfort System".

Main Functions 

• Immobilizer V
• Communication with the access/start authorization switch -E415- via the LIN-bus, including the terminal control and ignition key lock
• Interface for remote control and central locking
• Communication with the electronic steering column lock control module -J764- via the LIN-bus
• M-vehicle equipment: Advanced key, reading into the access/start authorization button -E408-, the capacity sensors inside the doors and receiving the signals from the keyless antennas

Service Information 

If there is a fault in "05 - access/start authorization" so that the comfort system central control module must be replaced, perform function "46 - replace control module, (Repair Group. 57)" from Guided Fault Finding or Guided Function. If the faulty control module is still installed and is still accessible via diagnosis, the data will be read and stored in the function test before replacing.

The following will be performed in the function test:

• "* * - service immobilizer"
• "Software Version Management"
• "Component Protection"
• Restore the stored data

The tester must have an online connection and the user must be authorized for the Geko/SVM system.