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BMW 3-Series (E90 E92) Forum
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DIY Powered seat retrofit (WIP)
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02-25-2011, 05:48 AM | #70 | |
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Simonn sent me a Mail were he discribed another good place for tapping into the K_CAN
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03-19-2011, 09:44 AM | #74 |
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Been reading this section with interest as my side bolsters are not working after I did the heated seat retrofit.
So as for ther fuse that relates to the side bolsters (backrest width adjustment) it looks although they would be F37? But is this a 10 amp or 30 amp fuse? p.s i have a 2005 E90 manual sports seats that have ahd the heated function retrofitted. |
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03-27-2011, 10:51 PM | #75 |
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I have successfully activated the seat memory function with the key fobs and cluster option.
1- You must know how to code. http://www.e90post.com/forums/showthread.php?t=451145 2- VO $459 must be added to CAS and FRM ftp://94.212.182.18/Other-Software/N..._Order_CAS.pdf 3- KOMBI must be modified with these values: SITZ_AUT_VERST_AUS aktiv SITZ_AUT_VERST_ENT aktiv SITZ_AUT_VERST_ENT_T aktiv Party! |
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04-06-2011, 04:31 PM | #76 |
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Hi guys
Thanks a lot for a great DIY. After i read it i went to my favorite BMW used car parts store and bought a set Dakota Terra sports leather seats with seat heating and memory. I have done the cabling, my car did not have any options, so I had to install cables for power and canbus for the driver seat and power and seat heat control for the passenger seat – more of that to come, I will write about my challenges with the install later. But right now I have a problem. My seat heat in the passenger side doesn’t work. The canbus controlled on the driver side is ok. I have checked the power, constant 12V on pin 4 and 9, ground on 8 and 13, 12V ignition on pin 5 and the seat heat control on pin 1. My guess is that there are two possible errors, either is pin 1 not correctly connected to X14270 pin 38 or the coding is no good. I have added $459, $481, $488, $494 to VO and recoded. But do I have to code more? Is it possible to have a look at yours .TRC files? And does anybody know if it is possible to measure the seat heat control signal? If it is a pulse modulation signal I think that you have to use an oscilloscope with I don’t have. Best Regards, Christian |
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04-06-2011, 04:44 PM | #77 |
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Thanks!
When you have added the VOs, have you recoded all your modules (read/write)? You need to do this for any affected modules to get the update. There is my main TRC file if it can help you. I'm sure you know that the heating signals are not working on the same bus on the driver and passenger side. So try to found which parameter is activating the SHFA_PWM signal. Thanks for sharing your experience in this DIY. |
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04-07-2011, 02:24 PM | #78 | |
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I cannot see your TRC file, did you upload it? Yes, i know. The canbus is controlling the driver side and SHFA_PWM is the passenger side. Thanks for you help Best regards, Christian |
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04-11-2011, 04:15 AM | #80 | |
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Best Regards, Christian |
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04-13-2011, 04:03 PM | #81 |
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Hello again
Good news, SITZHEIZUNG_LOW = aktiv did the trick. Anybody knows the difference between SITZHEIZUNG_LOW and SITZHEIZUNG? Added the SITZ_AUT_VERST_AUS, SITZ_AUT_VERST_ENT and SITZ_AUT_VERST_ENT_T also and memory with the keys did also work, BUT only with one key Every time I unlock the door and enters the seat stays in it position and does not move and i will have to press on the "1" button. But when my girlfriend enters with her key the seat move automatically to the "2" position. I have saved the seatmemory with my key and the ignigtion on but still it doesnt move Appreciate any help Best Regards, Christian |
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04-25-2011, 11:47 AM | #82 |
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Thank you guys , did the retrofit today from manual sport with heating to full powered with sport seats with memory and heating . Everything works perfectly , all you need really is basic knowledge and follow this thread . THANKS
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04-25-2011, 07:50 PM | #83 | |
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04-27-2011, 01:42 PM | #84 |
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Hi Woodpecka , what was wromg with the seat belt tensioner ? I cant get rid of the warning lights for airbag and seat belt tensioner for the passenger seat after recoding . It gives me a message like some circuit or plug is interrupted/disconnected and something for seat occupancy sensor
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04-27-2011, 04:11 PM | #85 | |
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When the root cause is resolve, you can remove the airbag error with INPA (coding) |
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04-28-2011, 01:33 AM | #86 |
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I did the same with mine , the seat i bought were from an US spec car , 2008 335i and i mounted them on euro E90. Airbags and seat belt tensioners were deployed so i put the old ones on . When i scan my car for the airbag light i get an OC3 sensor error , that the presence sensor in the passenger seat and as far as i know that sensor is now part of the seat cushion and its a pain to replace it
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08-15-2011, 03:03 PM | #87 |
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hey everyone, i just purchased sport seats. I installed the driver's side yesterday, i didnt do anything with the wiring, i just unplugged the battery first and then plugged in the harness to the seat. Positioning is the only thing working.
Here is some back information about my car. My original seats were heated/powered w/ lumbar & memory. The sport seats I bought have memory, lumbar, and are powered, i am not sure about the heating. currently side bolsters and lumbar are not working and possibly the heated although i do not know for sure if the seats have heating. So from what i have gathered on this topic is that i need to add some pins to the harness that connects from under the seat that comes out of the floor. Or do i still need to access the fuse box and run wires all around and behind the console? I really hope i do not have to do anything that crazy, the only difference the sport seats have are the side bolsters. Any suggestions/thoughts? Thanks in advance! |
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08-15-2011, 03:42 PM | #88 | |
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All the info is in the topic. If you see a module under the passenger seat, this mean the seat is heated. |
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