Interior light dim and heated seats not working?

[kindalen]

Today my interior lights stopped working, radio and dash lights dimmed and heated seats stopped working.

 

Any ideas on what is causing this? Nothing has been added/changed lately.

 

Thanks.

[Duggerchopz]

On 18/01/2022 at 20:27, kindalen said:

Today my interior lights stopped working, radio and dash lights dimmed and heated seats stopped working.

 

Any ideas on what is causing this? Nothing has been added/changed lately.

 

Thanks.

Failed body control unit. Just had mine replaced under warranty.  £600 plus labour I think it's the cost of paying yourself

[kindalen]

I had one replaced, not under warranty, about a year ago. Similar problem. Any idea what causes the failure? Is it a known issue?? 

[Duggerchopz]

Don't know.  Why was it replaced last time?  Same issues with lights etc?

[kindalen]

Installation of a reversing camera was suspected cause last time. No idea what causes it this time. 

[Duggerchopz]

Was the battery disconnected when the RC was installed? 

[kindalen]

Can't remember, was over a year ago. Module was replaced by Skoda and been fine since, camera was removed and car is 100% standard. Car was fine on way to work, fault just happened after I started car. 

[ApertureS]

5 hours ago, kindalen said:

Installation of a reversing camera was suspected cause last time. No idea what causes it this time. 

Damn that’s a stretch, or a really poorly installed camera, they only go to the fuse box and infotainment control unit, not the body control unit 

[kindalen]

They had a lot of difficulty finding cause of issue, Skoda factory were looking at it remotely too. Am just hoping not going to have issue every few months.

[kindalen]

Just checked part number replaced was 5Q0937084CQ. 

 

https://www.cars-equipment.com/en/shop/bcm-ecu-relay-3/oem-5q0937084cq-bcm-controler-skoda-octavia/?tpl=product_detail

 

I presume a 2 year warranty applies to dealer supplied and fitted parts?

[kindalen]

Also, the infotainment unit and maxi dot work perfectly until key is put in ignition. Then they immediately dim.