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      09-07-2017, 10:37 AM   #23
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As I know it?s not possible to retrofit IHKA3 with 100% functionally.
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      09-19-2017, 02:28 AM   #24
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Quote:
Originally Posted by gribouille1210 View Post
Can you explain me What is can proxy ?
How do you see IHKA3 in ESys?
Sorry for late answer. CAN proxy = device that takes can messages from can 100 and send them to can 500. and same way back.
I connected CAN proxy on old ihka can and new ihka3 on the other head of the CAN proxy. This way I could see it and code it with Esys.
But AC still doesn't want to start, and I don't know why.
I will try another method, with LIN proxy, and to change only the front panel, because all of us that is what we want, but it will take a while since I'm doing all this alone. It tool me 3-4 months to start playing with CAN, now I have to learn LIN also, so it will take a while.
If anyone has other idea or any news .... please let us know.
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      10-29-2017, 03:42 PM   #25
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I'm back again, I have a question, anyone who tried to do this retrofit, have ever try to connect CAN2 connections from IHKA3 to CAN2 from headunit?
I did a little more study about this, and I noticed something that I haven't seen before : CAN2 ftom IHKA3 is the same CAN2 as NBT, CONTROLLER, HEADLIGHTS, etc. I don't remember exactly , but when I tried to connect IHKA3 to pin 10 and 11 from A173*10B, they were empty, maybe not used and than is why IHKA3 was not seen by ESYS, another thing, when I used it with CAN proxy from old connection it had error about engine torque.
So, if anyone has more time and can test something it will be verry good for all of us : connect IHKA3 on same CAN2 bus like NBT, because there it should be, and there is also engine torques. So maybe this can be our solution.
Please if anyone has a little time, try this.
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      02-18-2018, 04:38 AM   #26
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Hello again, as I had some time free I made an last disperated try to install IHKA3 on my F30 2012.
I did a full car update to 63.3, and installed IHKA3 module with can2 connections where they should be in FEM, 178*10b pin 10 and 11. This time Esys saw IHKA3 module directly on can2, I could code it. Installed new panel, and started engine. After almost one minute of blinking AC led, this stops blinking and all commands are working as they should. The only thing I couldn't try is that if AC is realy working, as here is winter and even I was working in a garage where temparutre was OK for working, car doesn't feel more then 13 degree celsius , so I his AC button, set temp to 16 but .... compressor didn't start.
Anyone know how can I try AC function in winter ? Or if AC is dependent of outside or inside temperature? This is la last thing I don't know if it is working, the others options are working perfectly. No more error about IHKA doesn't know engine torque. IHKA module is green now in ISTA. I still have some errors in ISTA but ther are not related to IHKA function, and for the moment they are not bothering me so much. I will attach some picture.

So if anyone knows how can I check AC function, please let me know. So this retrofit can be fully working.
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      02-19-2018, 12:29 PM   #27
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ISTA+ ISTA+ 64 02 00 (553) IHKA control panel: LED in A/C button flashes

Hi Larry,

Great work! I have been following your posts on this retrofit with interest.

I believe the AC compressor will turn on when the in-cabin humidity is high and defrost is turned-on.


Regarding the flashing A/C LED, it appears to be normal when a new IHKA control panel is installed. Please see attached from ISTA+/Rheingold.

Larry
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      02-19-2018, 12:52 PM   #28
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I know that blink is ok when installing new IHKA unit. And because now I don’t have any errors regarding to engine torque or something else on IHKA, I hope this time will work. I will try to use defrost function in this time of winter and to see what is happening. I will keep updating this post with final results. For the moment everything is working perfect.
Regarding that mirror error, has anyone any idea? My car is without lane change assist, and retrofited power folding mirror.
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      03-10-2018, 06:19 AM   #29
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Hi Larry, any news? I'm following your path.
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      03-10-2018, 10:26 AM   #30
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      03-10-2018, 06:40 PM   #31
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No one can give us answers?
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      03-10-2018, 06:51 PM   #32
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No one can give us answers?
Only 1 person apparently has answers.
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      03-11-2018, 04:42 AM   #33
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Sorry for delay, for the moment everything is working OK, I’m just waiting for a hot day to start AC also, if that is working also than retrofit is done and 100% working. IHKA must be IHKA3 production date I think is must be from 2015 until today, and climate panel to be LCI, the one with white and amber colors. Pins that must be switched are the CAN pins, from CAN1 to CAN2 of the car. Latest iLevel entire car , and should be working. At least this is what I did on my car.
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      03-11-2018, 04:13 PM   #34
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Hi larry.i have ihka3 and lci clima. Could you tell me exactly what pin i must exhange?
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      03-11-2018, 04:54 PM   #35
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Quote:
Originally Posted by Drimacus View Post
Hi larry.i have ihka3 and lci clima. Could you tell me exactly what pin i must exhange?
IHKA -> KCAN_H Pin 22 to Pin 34 FEM A173*7B
IHKA -> KCAN_L Pin 23 to Pin 33 FEM A173*7B

IHKA3 -> KCAN2_H Pin 22 to Pin 10 FEM A173*10B
IHKA3 -> KCAN2_L Pin 23 to Pin 11 FEM A173*10B

Last edited by atzebmw; 03-12-2018 at 04:36 AM.. Reason: discovered errors, not A173*2B rather A173*7B
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      03-12-2018, 03:34 AM   #36
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Quote:
Originally Posted by atzebmw View Post
IHKA -> KCAN_H Pin 22 to Pin 34 FEM A173*2B
IHKA -> KCAN_L Pin 23 to Pin 33 FEM A173*2B

IHKA3 -> KCAN2_H Pin 22 to Pin 10 FEM A173*10B
IHKA3 -> KCAN2_L Pin 23 to Pin 11 FEM A173*10B
Thank you for replying .

If anyone does these modifications and can test on hot weather if AC compressor came ON, please report.
In my region is still cold, and that is the last thing that I have to test.
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      03-12-2018, 09:48 AM   #37
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Quote:
Originally Posted by larry_bml View Post
Sorry for delay, for the moment everything is working OK, I’m just waiting for a hot day to start AC also, if that is working also than retrofit is done and 100% working. IHKA must be IHKA3 production date I think is must be from 2015 until today, and climate panel to be LCI, the one with white and amber colors. Pins that must be switched are the CAN pins, from CAN1 to CAN2 of the car. Latest iLevel entire car , and should be working. At least this is what I did on my car.
Hi Larry,

Does your vehicle HVAC produce heat with your retrofit? Do you recall what the part number is for the IHKA3 controller you installed?

When I installed the LCI panel (64119363546) and IHKA3 (64116842986), connected the IHKA3 to K-CAN2 and Esys my vehicle to recognize and FDL code the IHKA3, everything appeared to be functional (LCI display and buttons appeared to be working, no errors reported in Rheingold/ISTA-D). But when I went for a test drive, the HVAC system would not give me any heat. I too could not check A/C since it is winter here in Canada.

I used Rheingold to diagnose the IHKA3 and I discovered the IHKA3 would not report temperatures from the sensors for the front air and front footwell ducts.

I tried VO Coding the IHKA3 and FEM_BODY controllers with manufacturing date 07/14 just in case the FEM body had to be configured differently to control the coolant valve to the HVAC heater core, but still no heat.

I gave-up and reinstalled my factory panel and IHKA. As expected, the HVAC system appeared to work fine and would produce heat.

Very frustrating....

I then double checked the part numbers of the components I installed and discovered the part number for the IHKA3 may have been the wrong part number.

The part number I used (64116842986) is only "Exchangeable" back to 64116840451 (07/16 manufacturing start date) - http://www.realoem.com/bmw/enUS/part...&q=64116842986 .

I probably should have used 64116820235 (08/16 manufacturing end date) or older since this part number is "Exchangeable" back to 64119356004 (04/14 manufacturing start date) when the IHKA3 was first introduced - http://www.realoem.com/bmw/enUS/part...&q=64116820235 .

At least that is my theory.... so I purchased 64119390099. I will report back with my findings after I install this part.

Larry
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      03-12-2018, 11:13 AM   #38
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This is my control unit : 64116840451 IHKA3, and yes I have hot air with it, I'm using it for almost one month and here were even -15 degree, so it was working on hot air, my only problem is if AC will work when will be hot outside. For the moment here are only 10 degree in the day, I'm waiting for more than 18-20 degree to test AC also. My LCI climate panel is produced 04/17 as I remember, but the part number I don't remember. Anyway is the full one, with seat heating and white/orange colors. I hope that AC will work also, but I still have to wait.
Maybe if I will have time latter, I will try to test also IHKA3 to see what temperature it returns from sensors.
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      03-12-2018, 11:39 AM   #39
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Quote:
Originally Posted by larry_bml View Post
This is my control unit : 64116840451 IHKA3, and yes I have hot air with it, I'm using it for almost one month and here were even -15 degree, so it was working on hot air, my only problem is if AC will work when will be hot outside. For the moment here are only 10 degree in the day, I'm waiting for more than 18-20 degree to test AC also. My LCI climate panel is produced 04/17 as I remember, but the part number I don't remember. Anyway is the full one, with seat heating and white/orange colors. I hope that AC will work also, but I still have to wait.
Maybe if I will have time latter, I will try to test also IHKA3 to see what temperature it returns from sensors.
Hi Larry,

Thank you for your reply. Looks like you just disproved my theory....

When you have time, please do run Rheingold diagnostic on your IHKA3. I am interested to know if your IHKA3 sees the front/footwell temperature sensors.

May I ask which i-level you are using? FYI, I am using F020-18-03-511

Thank again!

Larry
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      03-12-2018, 11:48 AM   #40
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      03-12-2018, 12:57 PM   #41
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@david51 , because you already have IHKA3
@larrylam646 unfortunately I don’t have latest ilevel, I used 63.3, I think is latest from 2017 when I upgraded my FEM and rest of the car
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      03-12-2018, 01:30 PM   #42
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Quote:
Originally Posted by larry_bml View Post
@larrylam646 unfortunately I don’t have latest ilevel, I used 63.3, I think is latest from 2017 when I upgraded my FEM and rest of the car
Thank you Larry.

One more question if I may... did you VO code the IHKA3 and/or FEM_BODY with a different manufacturing date? If yes, what date did you use?

Thank again!


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      03-12-2018, 01:57 PM   #43
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This I don’t remember exactly, but I think I have coded them with my manufacture date.
But if it will work completly , I will send you my cafd files from FEM, IHKA3, etc, so we can compare them. But first let’s hope that it will work with AC also.
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      03-12-2018, 02:26 PM   #44
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Quote:
Originally Posted by larry_bml View Post
This I don’t remember exactly, but I think I have coded them with my manufacture date.
But if it will work completly , I will send you my cafd files from FEM, IHKA3, etc, so we can compare them. But first let’s hope that it will work with AC also.
Thank you Larry. Very much appreciated
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