[Sheldondidit]

My e60 is having a battery drain issue. Even if the car goes into sleep mode the icv and disa valve stay powered on. I've got a bunch of can errors. I'm thinking maybe the voltage regulator or ibs is causing this?


01 Safety and information module
3 errors
9402: UpFront left sensor defective
9404: Upfront parameter inconsistent
93FC: Undervoltage Kl.30 detected

**********12 Motor electronics
5 errors
281D: 281D BSD generator: signal
299B: 299B battery sensor: signal
2F9A: 2F9A ambient temperature sensor, communication
27A0: 27A0 E-Box fan: control
281C: 281C Bit serial data interface (BSD): Signal**

29 Dynamic stability control MK60 E5
1 error
5F48: Combi error: Time invalid or temperature invalid (ID 0x310, (TEMP_EX,
T_SEC_COU_REL)
40 Car access system
1 error
D904: K_CAN_Leitungsfehler
41 Antitheft alarm system
D944: K-Can Physical error
43 Micro-power module
1 error
D9C4: K-CAN bus low
44 Sliding/tilting sunroof
2 errors
DA04: Error K_CAN_LOW
A092: Error normalization SHD
45 Rain/driving lights sensor
1 error
DA44: Can-Low physik.Busfehler DA44
60 Instrument panel
2 errors
931B: TEMPERATURE SENSOR
E104: CAN LOW ERROR
62 MOST/CAN gateway (headunit/radio)
1 error
E184: CAN low
65 Centre console control panel
1 error
E244: CAN low, physical bus error

1 error
E2C4: Error CAN physical error
6D Seat module, driver, rear
1 error
E444: CAN low, physical bus error
6E Seat module, passenger, rear
1 error
E484: CAN low, physical bus error
70 Lights module
3 errors
9CBC: Short circuit error 1
E504: CAN low, physical error
E519: Alive signal from the ALC system is missing
72 Basic body module
5 errors
E584: K_CAN_KURZSCHLUSS
A418: KEIN_HALL_A_PULS_FH_BFTH
A419: KEIN_HALL_B_PULS_FH_BFTH
A448: KEIN_HALL_A_PULS_FH_FTH
A449: KEIN_HALL_B_PULS_FH_FTH
78 Heating/air-conditioning control
5 errors
E71B: Message (KCAN: outside temperature, 2CA)
9C77: Auxiliary water pump
E714: Message (KCAN: Power Management Battery Voltage, 3BE)
E704: K-Can physical bus error
A2 Satellite, B-pillar, right
1 error
95B8: OC3 error

 

[Sheldondidit]

A few other things...

First off, I just purchased this car, it runs and drives great, just has all these codes. I got it for $1800.

The car has a lead acid battery in it. The battery doesn't have a sticker or anything at all that I can look up to get specs. The only markings at all is a green "Econo power" sticker.
I looked up a few similar sized batteries and they were all between 80-95 ah.
So I opened ncs expert and coded the battery from 110ah to 90ah but when I started the car the idle started surging badly, bouncing between 500-1000 rpm or so. switched the ah back to 110 and it went back to normal.

So does someone more experienced than I am have any ideas? I was thinking voltage regulator? the alternator charges the battery but I believe it is under charging. I will check the voltage when the car is off as well as running when I get home from work today. Unplugging the ibs doesn't change anything. But from what I recall it was around 13.7 when running and 12.3 when off. Battery is good, and yes I plan to get a new one but I feel the problem is more likely ibs or voltage regulator. In Inpa the ibs shows all 0s
Any help is REALLY appreciated!

 

[lincolnshibuya]

you have a code for a bad IBS (299B) Try disconnecting that (blue plug) and erase all the codes. I disconnected my IBS for a year now and I see no issues.

 

[Sheldondidit]

Tried it, no change.

 

[mattmar1]

a car with an FLA battery installed should not be running an IBS. theyre for AGM's. looks like someone just popped an FLA in to a car that originally had an AGM.
whats the battery and charging voltages?
coding AH rating needs not be done for an FLA.

 

[Sheldondidit]

I was thinking the same thing but qhen I went to change the coding it was already coded for FLA.

 

[Sheldondidit]

The only place I can find any battery coding in NcsExpert is in the CAS. Do I need to be coding something else as well?

 

[pshovest]

a car with an FLA battery installed should not be running an IBS. theyre for AGM's. looks like someone just popped an FLA in to a car that originally had an AGM.
whats the battery and charging voltages?
coding AH rating needs not be done for an FLA.

Lots of E60's including my 05/2009 build were delivered with FLA battery and have fully functional IBS.

 

[Sheldondidit]

I thou

Lots of E60's including my 05/2009 build were delivered with FLA battery and have fully functional IBS.

I thought so lol. After reading that post I spent a while trying to find some information on that claim. Needless to say, there is none.

 

[Sheldondidit]

Should include my dash also stays on.

Does this ignition information look correct?
kl30 has no voltage. My understanding isnit should always be hot?? Does anyone know what that is?
I've read that a bad ignition switch can cause these type of weird electrical issues

 

[Sheldondidit]

The first one is with the car running. This is the car off and key out.

 

[pshovest]

Clear the codes and see what comes back.
Charge the battery and disconnect overnight. Does it hold charge disconnected? This will rule out a self discharge issue w/battery.
Any water under spare tire soaking the modules there?
Search and install ISTA. You can prioritize the codes and run test plan for each....93FC, . It also has an energy diagnosis test under Service Functions that can identify parasitic loads.

 

[Sheldondidit]

I unplug it over night every night. The alternator is only charging the battery to about 40% as well as whining.

 

[Sheldondidit]

Today I found one of the connectors to the dme was wet with an oily substance. I took it apart and did not see any evidence of excessive heat or water making its wat anywhere else. After cleaning and reinstalling the problem is still there and the car still runs fine. I have a voltage regulator and ibs on order. If it's not those then I'm going to test the dme.
I badly want ista but haven't figure out where to find a licensed version. I've been doing everything with the programs that come on bmw standard tools. Inpa, ncs etc.

 

[tstiglich]

As for ISTA, you are not going to find a licensed copy as I believe that is only for dealerships. With that said, BMW ISTA+ Rheingold 4.32.15 [2021] :: RuTracker.org

 

[tstiglich]

You will need a torrent program, and lots of disk space

 

[pshovest]

Last time I checked the coding forums, there were links to download via PM.

 

[Sheldondidit]

im actually downloading it now!😀 where would be the best place on this forum to get can bus questions answered. ive spent tons of time searching but cant find exactlyh what im looking for

 

[tstiglich]

What are your questions regarding the CAN bus?

 

[Sheldondidit]

The wiring diagram ive been looking thru does not have much on the can bus and that is the diagram I need. Maybe im just not seeing it..
Luckily ista is downloading.

second question, im planning to chase down whatever module is causing all of my can bus codes, do i need to have the battery disconnected while disconnecting modules? Is there anything I should avoid doing so I dont damage the car. Is there a better way? the ista download you sent is downloading as we speak!


Thank you so much for any help! I am having a ton of fun learning about all of this. Crazy thing is that this is my 5th bmw. I have kept a few e90s an E46 and an x5 on the road without any BUS knowledge at all lol.