Hi all,

i have an Octavia vrs 2015 and the interior reading light switch (mounted by the rear view mirror) for some reason had over heated and burnt out some of the circuit and plastic switch pivots etc. I tried to fix ths but with only partial success I dug deep and bought a new unit.

Fitting was very simple with only two torx bolts needing to be unscrewed. 

There are 3 connector blocks - all different - so removing and refitting was simple.

The old unit contains a small black module about 50mm x 25mm (that appears to be connected to the three movement sensors by a two pin connector) and this needed to be taken out and inserted into the new replacement unit.

 

The interior lights now work as they should but... the red door alarm indicator turns to a static red light when the vehicle is locked with the key fob. After about 30 seconds it then starts flashing.

Since this unit was swapped the car alarm has mysteriously gone off on a few occasions whilst parked and locked.

 

Does anyone have an idea what the cause of the fault is and secondly how it can be resolved without having to take it to a qualified adult to fix?

 

Thanks.

Zeb

You might have fallen foul of the window position's needing to be recalibrated. Off the top of my memory, that whole switch panel is tied into the door controller logic. The doors just need to know where the windows are at (especially if you remove the battery for the work you just did).

 

 ignition on, engine started.

Individually: press the window down and HOLD the down position of the switch for 15 secs. Wind window up, and hold for 15 secs. Now repeat for each window.

 

Switch off engine, remove key, lock car and hopefully your alarm plays nicely now.

 

Thanks @varaderoguy.

I have tried your suggestion and the fault still remains. I switched the engine on and let it idle whilst holding down the window switch for 15 seconds and then holding the window switch in its up position for 15 seconds and repeated this for each window. I turned off the engine, climbed out of the vehicle, shut the door and locked the vehicle. The red door indicator remained static red for about 30 seconds and then started flashing.

 

Any other suggestions gratefully received.

Thanks to everyone for all of your suggestions to resolve my interior light/alarm issue.

I have recently had a new vehicle battery (start/stop) fitted and the issue with the alarm going off at random intervals has resolved itself. It must just have been a coincidence that my battery was failing at the same time as I fitted the interior light cluster.

Presumably the low battery voltage set off the vehicle alarm to warn me that the battery was on its way out? A dashboard warning would have been far more helpful if this was in fact correct?