OBD For Radio- Frequency Operated Central Locking

The new generation of central locking system has On Board Diagnostic (OBD) capability.

Troubleshooting is made easier using Diagnostic Trouble Code (DTC) memory, output Diagnostic Test Mode (DTM), and "Read Measuring Value Block" function 08. The central locking system version can also be coded using the VAG1551 Scan Tool (ST).

"Comfort opening" and "comfort closing" functions are possible with the new central locking system. Using the "comfort closing" function, you can close any open windows and the sunroof by holding the key in the "lock" position until everything is closed.

To use the "comfort opening" function, hold the key in the "unlock" position until the windows open. 'Comfort closing" cannot be used on the rear lid and luggage compartment locks.

The central locking system has two pneumatic circuits. The first circuit connects the driver's door and the fuel tank flap. The second circuit connects the remaining locking locations.

With the safety central locking system, when first unlocking driver and passenger doors, only these and the first pneumatic circuit are opened. If the system receives another unlocking command within 5 seconds, the second pneumatic circuit will also be activated and the entire vehicle will be unlocked.

If the rear lock is operated only once, the driver and passenger doors remain locked. After approx. 5 seconds the rear lid and/or luggage compartment flaps are re-locked automatically.

The interior lighting is brightened or dimmed within approx. 1.5 seconds. Luggage compartment illumination is controlled by the central locking system pump using the rear lid or luggage compartment contact switches. When the rear lid is open, the illumination is switched off after a speed threshold is exceeded (approx. 5 km/h or 3 m.p.h.).

Remote control system changes, 1997 ON
- The radio-frequency operated receiver is now a part of the central locking/alarm system/interior light delay control module -V94-, integrated with the central locking system pump. The separate central locking system control module for remote control operation is discontinued.
- The antenna of the radio4requency operated remote control is integrated into the wiring harness.

If no door or lid is opened within 60 seconds after the central locking system is opened using a radio-frequency operated remote unit, the central locking system locks again.

If the anti-theft warning system is set, the central locking system cannot be opened using the interior switch.

Confirmation can be set to trigger a short tone of the anti-theft warning system horn or brief operation of the emergency flashers. The central locking system can also be coded so that there is no confirmation.

Confirmation of radio frequency operated remote control can be displayed by activating the emergency flashers.