HI,

 

Why does the electric window motor have to be 'coded'? How is it done? Same question for batteries.

Thanks

 

John

 

Others will be able to give you the technical answer but mine is to keep the car manufacturer and car's computers happy.

 

I recently replaced the battery and then researched what was required (a lesson in how not to do things there) that's what got me here.  I knew that a low battery (car or keyfob) could give the computers headaches and then the computers would get their own back by upsetting the car and you but I had no idea how invasive the battery monitoring system is on the stop/start car.

 

The windows will be tied into other systems and not just wind the window up or down.

 

The coding is done by someone with the appropriate scan tool programming.  See the other threads here for more details.

 

HTH.

 

Edited 13 July, 20214 yr by nta16
speeling and stuff

Does your Fabia have rear electric windows? 

 

Fabias with only front electric windows do not have direct communication with the BCM, there is no wire for this.

 

I assume the coding is to tell the motor which type of vehicle it is installed to as there will be variances in wiring, window sizes and they may or may not have communication with the BCM which supports closing via remote (Hence why the drivers window in the 4 door electric window option can be closed via remote)

 

As for battery;

Coding is used to tell the battery management system the expected capacity of the battery and chemical makeup as to not overcharge or undercharge the battery, different technologies such as AGM use higher charging rates than your standard battery which would obviously be bad for a regular battery. this can also help your car intelligently switch things off if it detects your voltage getting too low.

Edited 14 July, 20214 yr by steevs

Thanks Steevs.

My rear windows are manual so I should be ok there. My event at I did get a new battery god forbid would I have to take the car along to a main dealer to get the coding done?

 

Thanks,

John

Apparently the battery management system needs reset every time you change the battery as it adapts over time while the battery slowly degrades. Think this adapts the way it charges (may supply more power).

 

Not sure how true this is as I've always adapted mine via OBDEleven on any cars that had a battery management system.

 

 

In short, no you won't need a main dealer to code it - Some people on here may be nearby and willing to help!

Edited 14 July, 20214 yr by steevs

21 hours ago, steevs said:

this can also help your car intelligently switch things off if it detects your voltage getting too low.

Or can send the car's computers dolally and give them headaches and put them in a bad mood.  

 

Always best to have the car's battery and the batteries in the keyfobs in a good state of charge.  I (try to) alternate which keyfob is used to keep the batteries wear more even and it also means you know where to find the spare keyfob and that it works.