General Information
When disconnecting and connecting the battery, always perform the work procedure as described in the Service Information. Refer to BATTERY, DISCONNECTING AND CONNECTING . Failure to follow the sequence can trigger the battery cut-off relay and damage the electrical equipment.
Access/Start Authorization Switch -E415- (starter switch) is one unit and can only be replaced completely.
The Access/Start Authorization Control Module -J518- is integrated in the comfort control module. Perform the procedure if the Access/Start Authorization Control Module -J518- was replaced.
General Description
The anti-theft immobilizer reader module and the Ignition Switch Key Lock Solenoid -N376- are integrated in the Access/Start Authorization Button -E415- and cannot be replaced separately.
All faults related to the Access/Start Authorization Switch -E415- are transmitted via the Access/Start Authorization Control Module -J518- and the Comfort System Central Control Module -J393-.
In this vehicle, the ignition key lock is electromechanically released.
To remove ignition key in vehicles with automatic transmission, always shift selector lever into position "P" and then switch off ignition. Otherwise, Ignition Switch Key Lock Solenoid -N376- prevents the key from being removed (ignition key lock)!
The ignition key lock assures that the ignition key is not accidentally removed.
Malfunction Recognition and Malfunction Indicator
The access/start authorization is equipped with On Board Diagnostics (OBD), which makes it easier to perform Fault Finding.
The "Guided Fault Finding" function is to be used for troubleshooting of one of the systems described as in service information "Vehicle Diagnosis, Testing and Information System". Refer to VEHICLE DIAGNOSTIC TESTER .