Access/Start Authorization System Overview

DTC Recognition And Display

The access/start authorization system has OBD.

Use the Vehicle Diagnostic Tester in "Guided Fault Finding".

General Information

The access/start authorization regulates keyless opening, locking and starting of the vehicle.

Opening

The ID sensor in ignition key must be located within reception range of lock location of approximately 1.5 meters (5 ft.). The proximity sensor located on the inside of the door handle is activated whenever the handle is touched. This then speaks to the ID sensor inside the key and the door unlocks immediately if the identification is valid. Pulling the exterior door handle opens the vehicle.

Starting

The ID sensor in ignition key must be located in the vehicle interior. The clutch pedal must pressed on manual transmission vehicles. On vehicles with an automatic transmission and DSG, the selector lever must be in "P" and the brake pedal must be pressed. Press the Start System Button -E378- briefly. This speaks to the ID sensor in the key and if the identification is valid, the steering wheel unlocks and the vehicle can be started.

It is only possible to start the engine with the Start System Button -E378- when a valid ID sensor (inside the key) is located in the vehicle interior.

Locking

The ID sensor in ignition key must be located within reception range of lock location of approximately 1.5 meters (5 ft.). Touching the locking sensor on the outside of the door handle activates the sensor. This then speaks to the ID sensor inside the key and the vehicle unlocks if the identification is valid.

The Access/Start Authorization Control Module -J518- controls all access/start functions, refer to ACCESS/START AUTHORIZATION COMPONENTS .

Fig 1: Identifying Access/Start Authorization System Components Overview

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Antenna Contact Point Coverage Area
2. Access/Start System Antenna 1 in Vehicle Interior -R138-
   • Under the center console in front of the selector lever
   • Removal and installation, refer to ACCESS/START SYSTEM ANTENNA 1 IN VEHICLE INTERIOR -R138- 
   • Checking, refer to ANTENNAE AND SENSORS FOR ACCESS/START AUTHORIZATION, CHECKING 
3. Front Passenger Exterior Door Handle
   • The following components are integrated in front passenger exterior door handle:
     • Front Passenger Exterior Door Handle Touch Sensor -G416-
     • Front Passenger Access/Start System Antenna -R135-
   • Exterior door handle, removal and installation, front passenger side, refer to DESCRIPTION AND OPERATION
   • Checking Front Passenger Access/Start System Antenna -R135-, refer to ANTENNAE AND SENSORS FOR ACCESS/START AUTHORIZATION, CHECKING 
   • Checking the Front Passenger Exterior Door Handle Touch Sensor -G416-, refer to ANTENNAE AND SENSORS FOR ACCESS/START AUTHORIZATION, CHECKING 
4. Access/Start System Antenna In Luggage Compartment -R137-
   • Only for Beetle convertible
   • Under the convertible well trim
   • Removal and installation, refer to ACCESS/START SYSTEM ANTENNA IN LUGGAGE COMPARTMENT -R137- 
   • Checking, refer to ANTENNAE AND SENSORS FOR ACCESS/START AUTHORIZATION, CHECKING 
5. Access/Start System Antenna In Rear Bumper -R136-
   • Behind the rear bumper cover on the rear.
   • Removal and installation, refer to ACCESS/START SYSTEM ANTENNA IN REAR BUMPER -R136- 
   • Checking, refer to ANTENNAE AND SENSORS FOR ACCESS/START AUTHORIZATION, CHECKING 
6. Access/Start System Antenna 2 in Vehicle Interior -R139-
   • Underneath the rear seat bench
   • Removal and installation, refer to ACCESS/START SYSTEM ANTENNA 2 IN VEHICLE INTERIOR -R139- 
   • Checking, refer to ANTENNAE AND SENSORS FOR ACCESS/START AUTHORIZATION, CHECKING 
7. Driver Side Outside Door Handle
   • The following components are integrated in driver side outside door handle:
     • Driver Exterior Door Handle Touch Sensor -G415-
     • Driver Access/Start System Antenna -R134-
   • Exterior door handle, removal and installation, driver side, refer to DESCRIPTION AND OPERATION
   • Checking Driver Exterior Door Handle Touch Sensor -G415-, refer to ANTENNAE AND SENSORS FOR ACCESS/START AUTHORIZATION, CHECKING 
   • Checking Driver Access/Start System Antenna -R134-, refer to ANTENNAE AND SENSORS FOR ACCESS/START AUTHORIZATION, CHECKING 
8. Access/Start Authorization Button -E378-
   • Inside the center console storage compartment
   • Removal and installation, refer to START SYSTEM BUTTON -E378-
9. Access/Start Authorization Control Module -J518-
   • Inside the footwell on the driver side and above the brake pedal
   • Removal and installation, refer to ACCESS/START AUTHORIZATION CONTROL MODULE -J518- 
   • Coding, refer to ACCESS/START AUTHORIZATION CONTROL MODULE -J518-, CODING