[ahmad327]

Hey every one,

my first post, here, I've searched in the forum a lot but no luck so far, hope you can help.

I damaged my F31 by trying to upgrade the AC controls panel from IHKA to IHKA3 controls.




initially the new panel worked partially, and it's display showed only the fan related part but couldn't control the temperature.

then I coded IHKA: KLIMA_SG_ART => ІНК_2Z, which didn't help.

then I found a post saying that if I swap the controls connector cables order :
KL30, KL31, LIN -> LIN, KL30, KL31
It would make the controller talk to IHKA.



but once I made the change and connected the controller, every thing went OFF :
* the horn not working
* head-lights controller don't control the head-lights anymore
* signals and wiper stalks don't work
* steering wheel controls don't work
* horn does not work
* radio and ac controls panel lights are off and don't work
* wipers are alway on
* and tins of error codes

also reading CAFD in e-sys is failing with timeout error



I'm lost and have no direction, checked all the fuses and nothing is blown, any help is much appreciated

Edit: I’ve already restored the original connector cables order, but still the same issue

[TheNine90]

I think you should look at the wiring diagrams first.
When you restore original pin order car is fine?

[ahmad327]

TheNine90 i restored the original order but still the same

[happyhippo]

Did you try to install old ihka?

[ahmad327]

The only thing i changed is the buttons panel ( didn’t change the Ihka), and now i have the old buttons and pins order but still not working

[Revoltos]

All the functions that have failed are FEM controlled arnt they? Can you see the FEM in ISTA or Esys?

[ahmad327]

I just checked, i see the FEM module and can read CAFD.

I can also see IHKA, but reading its CAFD times out

[fe7565]

Need to post your error codes from ISTA+ and your control tree. Will help to narrow down the problem...which now could be numerous issues like a blown fuse, bus (LIN, CAN) communications, ECU firmware corruption, etc.

Could try to Esys-code (not program) your IHKA with your factory FA. But, if the IHKA is not communicating with the rest of the car, you can't code it and can't see the CAFD either. So, check in ISTA and see if you can get the IHKA to respond as an ECU before going any further. Clear the codes while there.

[ahmad327]

Hey i dont have ISTA, only e-sys, so i will try to code with the original FA first and update you

Here are the codes, clearing them didnt help:

Car Scanner ELM OBD2
DTC report
Selected brand: BMW
VIN: WBA3K11010F854971

============1==============
244800
Raw code: 244800
ECU: Engine control unit
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============2==============
CD9401
Raw code: CD9401
ECU: Engine control unit
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============3==============
244800
Raw code: 244800
ECU: Engine control unit
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============4==============
CD9401
Raw code: CD9401
ECU: Engine control unit
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============5==============
D35448
Raw code: D35448
ECU: DSC/Traction control
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============6==============
801C20
Raw code: 801C20
ECU: CAN gateway
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============7==============
480143
Raw code: 480143
ECU: Suspension/Dynamic management
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============8==============
D01734
Raw code: D01734
ECU: Suspension/Dynamic management
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============9==============
D01736
Raw code: D01736
ECU: Suspension/Dynamic management
Status: Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============10==============
D35448
Raw code: D35448
ECU: ABS/DSC
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============11==============
030350
Raw code: 030350
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============12==============
030352
Raw code: 030352
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============13==============
030410
Raw code: 030410
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============14==============
80408C
Raw code: 80408C
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============15==============
8041B6
Raw code: 8041B6
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============16==============
D90C07
Raw code: D90C07
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============17==============
D90C0A
Raw code: D90C0A
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============18==============
D90C0D
Raw code: D90C0D
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============19==============
D90D17
Raw code: D90D17
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============20==============
D91E42
Raw code: D91E42
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============21==============
D91E46
Raw code: D91E46
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============22==============
D91EBF
Raw code: D91EBF
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============23==============
D91EF0
Raw code: D91EF0
ECU: Car access system
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============24==============
E12C35
Raw code: E12C35
ECU: Dashboard/Instruments cluster
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============25==============
804875
Raw code: 804875
ECU: Central module (in driver's footwell) (FRM)
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============26==============
E59441
Raw code: E59441
ECU: Central module (in driver's footwell) (FRM)
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

[ahmad327]

Hey, ive tried coding FA, but no help, i will try to get ISTA+ and will report back

[fe7565]

When you tried to re-code with the factory FA your IHKA ECU, did the ECU coding option show? If yes, then your IHKA ECU is visible to the car.

Not sure what the generic "test failed" means. Can the car see that ECU? ISTA error codes would be more specific and helpful...now that there may be numerous unrelated or secondary domino-effect errors listed.

Until you get ISTA, could try to clear the errors with ESys using the "external transmitter", and run the the very bottom command (of the available commands).

[ahmad327]

I cleared the codes, but they keep coming back.

The errors list i get from regular obd scanner, so not sure what they mean by „test failed“

IHKA is not visible at all now

I’m working on getting ISTA but no luck yet, still trying to get a working link.

I suspect IHKA was blown because of the cables order, do you think disconnecting it will help with the FEM controlled modules?

[Siki78]

Can I see your car over teamviewer if you are connected with car?

[ahmad327]

Sure

[TheNine90]

Restore original pin order and plug back in. Check fuses. And test using esys if IHKA responds.

[ahmad327]

TheNine90 i restored then and checked all the fuses still the same

[TheNine90]

Try using esys transmitter and see if ihka responds.
Maybe Siki78 can help you.

[Siki78]

You have pm

[Siki78]

ahmad327 Try to VO code FEM module. Just right click on FEM and hit button CODE. But like you see IHKA is not responding not coming up maybe die

[fe7565]

[QUOTE=ahmad327;29929936]
I’m working on getting ISTA but no luck yet, still trying to get a working link.



Go to the DIY coding forums and look for PSzData etc thread and ask Shawn there for ISTA.

[ahmad327]

Thanks Siki78 for the help

Disconnecting the battery didnt help.

I will try VO coding the FEM and report back

[fe7565]

Try this thread for ISTA . Some threads are not active

https://f30.bimmerpost.com/forums/sh...16911&page=105