Anyone have these available for 2014 Fabia (BCM PQ25 very common) ?

I'm starting to track down the fault in my heated mirror circuit and these will be very useful

Any assistance appreciated

Is the fault one or both sides?

Can find later for you; you've checked the A-pillar wiring, right?

@Breezy_Pete Thanks

I have checked the wiring and have fitted a new door wiring harness (D/S) previously (4 months) and it didn't cure the issue, when I replace fuse for the heated mirrors they work correctly but the alarm indicating LED in the D/S Door is constantly on regardless of alarm / lock state, I'm starting to think its the BCM or some crossed wire / ground hence the request for wiring / pin out details, its a strange one

I've also tested the P/S door harness, connectors and both door secondary harnesses etc to no avail

That does sound like an odd one!

I'll see what I can dig up for you this afternoon.

Pin number at BCM black 73-way connector is 38 for the heated mirror outputs, both sides, black/red wire that goes to the right (UK) driver's side one, black wire going  to UK pass side.

The output to the "Output for warning light for SAFE function of central locking" is on pin 58 of same BCM connector, a white/violet wire.

 

Interestingly...

They go through the 28-way at the right A-pillar on adjacent pins, 13 and 14. I wonder if you've got a bent pin in there or some moisture ingress shorting the two pins together?

 

Can be hard to see, but a phone camera on 'macro' can probably get a good shot with female connector removed.

 

Diagrams would be useful ??

Also, how do I swap a BCM ? I assume I'll extract the vehicle long coding with VCDS and reprogram the replacement (used) with the appropriate long code. Anyone have a guide to do this ?

 

 Looked on Rosstech site but the help section "isn't"

Edited 11 May, 20233 yr by Crucian