osunick
Posts: 4
Joined: Fri Feb 10, 2017 2:31 am

My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Sat Jul 29, 2017 1:52 pm

Some background, I looked at the parts listing for 5AR (Traffic Jam Assist) on etkbmw:

https://www.etkbmw.com/bmw/EN/search/op ... 8170/S5ARA

Basically, three are listed- a wheel with capacitive touch sensors, a new switch cluster with the Traffic Jam button, and a new clockspring/stalk assembly with wiring for the touch sensor. (note that 5AT is a required option for 5AR, which is the adaptive cruise and pedestrian detection option)

I ordered the parts and waited months for them to arrive. After getting them, i installed them, which was largely fine except for airbag removal, which is by far the most annoying part of the process. After installing all the parts, I VO Coded the car to add 5AR and then coded the right modules. (BKOMBI, BDC, KAFAS2). Then I ran rheingold to calibrate the touch sensor. One error- Missing LIN Slave on the Touch Sensor. Basically the touch sensor wasn't getting power. I looked at the schematic and looks like touch is powered by fuse 58 in the box, which had no fuse in my US car. I put in a fuse, no joy. I finally took everything apart and turns out there is an 8 pin connector on the back of the clockspring with 4 live pins on the clockspring without touch, and 6 live pins on the touch enabled clockspring. The harness on the car side is an 8 pin connector but BMW did not include the extra two wires for touch in the harness for non TJA cars. At this point, I'm not going to mess with the vehicle side harness, but thought this information might be helpful. Car is back to stock now, no issues.

If anyone has ideas, wants to buy my parts from me, or wants to borrow them to see if they can figure out the wiring, PM me. Hope this helps.

-n.

alohart
Posts: 2425
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Sun Jul 30, 2017 2:24 am

You seem very close assuming that power is all that's missing. Compared with what you've already done, running a couple of power wires from the fuse box to the clock spring connector seems trivial. I hope that you decide to complete what I hope would be this final step.
Aloha,
Art

2014 BMW i3 Arravani Grey, Giga World, Tech + Driving Assist, Parking Assist, DC Fast Charging, JuiceBox EVSE

osunick
Posts: 4
Joined: Fri Feb 10, 2017 2:31 am

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Sun Jul 30, 2017 7:23 pm

I'm pretty sure it's power and data that are missing, so just adding power to the touch sensor probably won't cut it.

shehadehd
Posts: 21
Joined: Wed Aug 09, 2017 3:27 am
Location: California

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Wed Aug 09, 2017 3:35 am

osunick, did you also purchase 32 30 6 875 202 the 'touch control module' for your installation? It seems odd that the 6-pin car-side harness needed for TJA wouldn't be listed on BMW's part list?
Traffic Jam Assist (TJA) retrofit modules available at
https://www.enhancedautomods.com

osunick
Posts: 4
Joined: Fri Feb 10, 2017 2:31 am

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Sun Aug 13, 2017 9:26 pm

I did- but it was also included with the wheel, so I have two of them.

shehadehd
Posts: 21
Joined: Wed Aug 09, 2017 3:27 am
Location: California

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Tue Aug 15, 2017 11:03 am

Thanks for the reply osunick. I just PM'd you but I don't think it went through.

I want to give the retrofit a shot and am (so far) open to potentially rewiring to make it work. I tried purchasing a touch controller from BMW but they are on backorder for like a month. Is it possible to purchase the extra controller from you (and any other TJA parts if you aren't planning on the retrofit)?
Traffic Jam Assist (TJA) retrofit modules available at
https://www.enhancedautomods.com

osunick
Posts: 4
Joined: Fri Feb 10, 2017 2:31 am

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Thu Aug 17, 2017 5:06 pm

Got the PM and responded, I think we may be able to work together.

dsevero
Posts: 1
Joined: Tue Sep 05, 2017 9:15 am

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Tue Sep 05, 2017 9:18 am

Where you guys located at? I'm in the bay area and I'm currently working on enabling TJA too. Maybe we can work together.

shehadehd
Posts: 21
Joined: Wed Aug 09, 2017 3:27 am
Location: California

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Tue Sep 05, 2017 1:47 pm

dsevero wrote:Where you guys located at? I'm in the bay area and I'm currently working on enabling TJA too. Maybe we can work together.
I've moved to Los Angeles but I have been able to get the TJA working. There's more info about it in the linked discussion

http://www.mybmwi3.com/forum/viewtopic.php?f=12&t=3814
Traffic Jam Assist (TJA) retrofit modules available at
https://www.enhancedautomods.com

wlsmith12
Posts: 20
Joined: Sun Jan 17, 2016 8:49 pm
Location: Chicago IL USA

Re: My experience trying to enable Traffic Jam Assist on my i3 (5AR)

Wed Sep 06, 2017 11:25 am

Do you sell the module? or is it software?

Return to “Technical BMW i3 Discussions”