Quote Originally Posted by Binary View Post

Would a scan with VCDS detect a failed buzzer / open circuit on the buzzer circuit? Do you know where the buzzer is located and if I could simply test it by subbing the buzzer for a 50 ohm resistor without causing any harm? Replacement buzzers appear to be available cheaply online, so I'm now hoping its the buzzer!
Yes a scan showed an error something like - speaker resistance greater than 50 ohm - which gave me a clue to the specs of the speaker. In the Yeti the speaker is located under the roof lining about 150mm in from the D pillar on the drivers side. To replace it would require pulling all the A, B, C & D pillars covers cabin lights and more, a big job....So instead I mounted the replacement behind the D pillar cover and cut the wires and soldered them to the speaker. The original speaker is still in the car. The controller is mounted behind the cargo bay cover near the taillight. A 47 ohm resistor should be OK as a test to simulate a correct load. As a temporary setup I used an old 8 ohm speaker with a series 39 ohm resistor. It worked but was too quiet. Not sure if the Octavia is the same as the Yeti but likely similar.