Control Modules

Wolf 335 · 05-05-2021, 12:04 PM

Compiled some info from repair manual.

I'm sure it will come useful for some when troubleshooting.

1. JBE - Junction Box Electronics
2. FZD - Roof Functions Center
3. CAS - Car Access System
4. FRM - Footwell Module

Name: locations.JPG
Views: 6555
Size: 28.2 KB

Name: locations.JPG
Views: 6555
Size: 28.2 KB

Breakdown:

Name: JBE.JPG
Views: 6075
Size: 40.6 KB

Additional module locations:

Name: additional locations.JPG
Views: 13899
Size: 110.3 KB

Cheers

ewicky · 05-05-2021, 01:15 PM

It's amazing how complicated these cars are. Especially when it's worth noting that diagram is missing several haha.

Such as (for me) the xDrive module under the front passenger's carpet (VTG), the tire pressure module in the right rear quarter panel (RDC), the HD radio tuner right above the HiFi amp (IBOC), the USB/aux/bluetooth module right besides the telematics (MULF2-HIFI), automatic transmission computer inside the valve body (EGS), and I'm sure there's another I'm missing.

Edit: I missed listing the IBS on the battery neg, and the antenna diversity module at the top of the rear windscreen (not sure if that counts as a real module). Also it's interesting that they show the steering angle sensor down by the rack; I suppose that must be because this example car has active steering. Most cars with hydraulic steering are going to have the steering angle sensor in the clock spring in the column up by the wheel.

R3dLeader · 05-05-2021, 08:59 PM

Good post, thanks!

Andystobbs · 05-06-2021, 01:27 AM

Wonder how many people have changed the left headlight when trouble shooting a SAS fault?

ewicky · 05-06-2021, 11:05 AM

Quote:

Originally Posted by Andystobbs

Wonder how many people have changed the left headlight when trouble shooting a SAS fault?

Only a dealership would blindly follow the instructions over common sense.

gbalthrop · 05-06-2021, 12:52 PM

Get Bentley Manual in SEARCHABLE PDF format, 1265 pages, here:
http://www.georgebelton.com/335i.tech/bentley.php

See attached pdf "E9x References" for ISTA, INPA & other helpful resources for DIY (DIAGNOSE IT YOURSELF or Do-it-yourself ;-)

George

barrettroache92 · Today, 09:39 PM

I have a 2009 e92 328i xdrive and my idrive is completely dead, my power seats work but the bolstering adjustment does not, my sos light and sunroof light are on the instrument cluster, and when I “scan all modules” on my scan tool it freezes up and fails to communicate with the car communication computer, anybody know which module or modules, are most likely responsible

05-05-2021, 12:04 PM	#1
Wolf 335 Brigadier General 2551 Rep 3,658 Posts Drives: 2007 E92 335i Join Date: Aug 2012 Location: Toronto iTrader: (0)	Control Modules - functions and locations Compiled some info from repair manual. I'm sure it will come useful for some when troubleshooting. 1. JBE - Junction Box Electronics 2. FZD - Roof Functions Center 3. CAS - Car Access System 4. FRM - Footwell Module Breakdown: Additional module locations: Cheers
	Appreciate 2 TiAgAu210.50 Brandoch741.00 Tweet Quote

05-05-2021, 01:15 PM	#2
ewicky Lieutenant 203 Rep 525 Posts Drives: '07 335xi 4D AT Join Date: Jan 2017 Location: Seattle, WA iTrader: (0)	It's amazing how complicated these cars are. Especially when it's worth noting that diagram is missing several haha. Such as (for me) the xDrive module under the front passenger's carpet (VTG), the tire pressure module in the right rear quarter panel (RDC), the HD radio tuner right above the HiFi amp (IBOC), the USB/aux/bluetooth module right besides the telematics (MULF2-HIFI), automatic transmission computer inside the valve body (EGS), and I'm sure there's another I'm missing. Edit: I missed listing the IBS on the battery neg, and the antenna diversity module at the top of the rear windscreen (not sure if that counts as a real module). Also it's interesting that they show the steering angle sensor down by the rack; I suppose that must be because this example car has active steering. Most cars with hydraulic steering are going to have the steering angle sensor in the clock spring in the column up by the wheel. Last edited by ewicky; 05-05-2021 at 01:35 PM..
	Appreciate 1 Wolf 3352551.00 Quote

05-05-2021, 08:59 PM	#3
R3dLeader Second Lieutenant 163 Rep 225 Posts Drives: e92 and e93 335i Join Date: Feb 2021 Location: West Coast iTrader: (0)	Good post, thanks!
	Appreciate 0 Quote

05-06-2021, 01:27 AM	#4
Andystobbs Captain 193 Rep 720 Posts Drives: E91 Lci, Vectra B V6 Join Date: Sep 2019 Location: Chester, South Wirral iTrader: (0)	Wonder how many people have changed the left headlight when trouble shooting a SAS fault?
	Appreciate 0 Quote

Today, 09:39 PM	#7
barrettroache92 New Member 0 Rep 8 Posts Drives: 2009 bmw 328i Join Date: Oct 2024 Location: New York iTrader: (0)	I have a 2009 e92 328i xdrive and my idrive is completely dead, my power seats work but the bolstering adjustment does not, my sos light and sunroof light are on the instrument cluster, and when I “scan all modules” on my scan tool it freezes up and fails to communicate with the car communication computer, anybody know which module or modules, are most likely responsible
	Appreciate 0 Quote