F11 Checking Receiver Module Signal Pulse

- Switch off ignition.
- Remove central locking relay D/G.




- Connect a voltmeter between pos. ATR and pos. 31 on the relay base terminal.




- Press the "LOCK" keys on all the transmitters and check for a reading on the voltmeter.
The voltmeter should give a reading (showing pulse more than 0 V).

If value is OK:
- Replace the central locking relay and test all transmitters by pressing the "LOCK" and "UNLOCK" keys. Confirm central locking system activation. If the central locking system does not activate continue to F13. F13 Checking the Receiver Module

If the reading is incorrect:
- Continue to F12. F12 Checking Transmitter