[Rambo96]

Hi all,

Since one week i'm experiencing problems with my central locking.
The front 2 doors won't open, or lock when pressing my key, or the central lock button in the inside of my car. Rear left door is working good, Rear right is working sometimes.

Carly is giving me the following codes:
801C15 (Faulty asleep at 30B)
801C20 (Central error memory full)
801201
8011FF
801222
800F92

All my fuses are good, however my System voltage at rest is 11.9

Does anyone know where to search for this problem?
Im sorry for my english

[ezaircon4jc]

Originally Posted by Rambo96

Hi all,

Since one week i'm experiencing problems with my central locking.
The front 2 doors won't open, or lock when pressing my key, or the central lock button in the inside of my car. Rear left door is working good, Rear right is working sometimes.

Carly is giving me the following codes:
801C15 (Faulty asleep at 30B)
801C20 (Central error memory full)
801201
8011FF
801222
800F92

All my fuses are good, however my System voltage at rest is 11.9

Does anyone know where to search for this problem?
Im sorry for my english

Your "at rest" voltage should be in the 12.5v range and I'm pretty sure 11.9v is too low for an electronics intensive newer car. Running you should see around 14.4v. I would suspect the battery. There should be a place that will load-test it for you for free or a nominal fee.

[Rambo96]

Originally Posted by ezaircon4jc

Your "at rest" voltage should be in the 12.5v range and I'm pretty sure 11.9v is too low for an electronics intensive newer car. Running you should see around 14.4v. I would suspect the battery. There should be a place that will load-test it for you for free or a nominal fee.

When running my battery has an ok voltage, shouldn't my central lock be working while driving?

[jrich83]

Any resolution to this? I’m having the same issue

[kennf10]

Originally Posted by jrich83

Any resolution to this? I’m having the same issue

same here.. having the same issues here.

[dzz]

while low voltage could be an issue, I had a problem that one of the antennas used to detect the key fob for comfort access wasn't connected properly, so comfort access on front 2 doors wasn't working. Central lock activated using key fob was working. This antenna in question is located under the cupholders part of the interior trim, right behind the cup holders. You need to remove interior trim to access this antena responsible for comfort access for front 2 doors. Maybe this will solve part of the problem.

I'd still look into battery voltage. Also, try to run diagnostic using ISTA, you may get better answer as to what is causing this issue

[ziekxq]

I would check for frm module... This is what controls all this stuff. Might require an update/reprogramming.

[kennf10]

Originally Posted by Rambo96

Hi all,

Since one week i'm experiencing problems with my central locking.
The front 2 doors won't open, or lock when pressing my key, or the central lock button in the inside of my car. Rear left door is working good, Rear right is working sometimes.

Carly is giving me the following codes:
801C15 (Faulty asleep at 30B)
801C20 (Central error memory full)
801201
8011FF
801222
800F92

All my fuses are good, however my System voltage at rest is 11.9

Does anyone know where to search for this problem?
Im sorry for my english

shit.... im having the same problem.

[kennf10]

Originally Posted by ziekxq

I would check for frm module... This is what controls all this stuff. Might require an update/reprogramming.

can it be caused by bimmercode coding ? or what? i just updated my idrive couple days ago from bmw.

how to reset the frm module?