JB4 not working

johnson47376 · 03-08-2015, 08:15 PM

So I've had my JB4 Stg 2 installed for over 2 years and it randomly started getting hiccups and engine malfunction and SES lights the other night and now JB4 seems to be freezing or not working at all when I try using the steering wheel controls. After trying to enter into map selection 5-10 times it eventually works, but I cannot go into any other menu and then it usually freezes the gauges. The car is running like crap and wont stay running. Checked the connections and all seem to be fine. Anyone have this issue. Is my board getting ready to be completely fried? ANY HELP APPRECIATED!

loesch · 03-08-2015, 08:26 PM

If you're sure the power wire and ground are good then email BMS. If the board is bad they should have no problem replacing it for you.

Sidewinderpb · 03-08-2015, 10:32 PM

Try cleaning your CAN wires with some alcohol and a paper towel. They can get pretty gunked up with the glue from the covers, which will interfere with the connection.

johnson47376 · 03-10-2015, 11:10 AM

Quote:

Originally Posted by Sidewinderpb

Try cleaning your CAN wires with some alcohol and a paper towel. They can get pretty gunked up with the glue from the covers, which will interfere with the connection.

I'll try that, that's also what BMS suggested after I sent them the codes

mike@x-ph.com · 03-10-2015, 01:05 PM

BMS stand 100% behind their products. You should have no problem getting this issue fixed
keep us updated.

hz_diesel · 05-18-2017, 07:20 AM

was this solved?

johnson47376 · 05-26-2017, 07:33 PM

Quote:

Originally Posted by hz_diesel

was this solved?

Cleaned the connections again and made sure all of the settings were at "default" settings, re loaded hex file. Idk if it was moisture on some wires or something, it seemed to just work after letting the car sit for a couple days in the garage lol, never pin pointed it

Diox · 05-30-2017, 10:05 PM

Quote:

Originally Posted by johnson47376

Cleaned the connections again and made sure all of the settings were at "default" settings, re loaded hex file. Idk if it was moisture on some wires or something, it seemed to just work after letting the car sit for a couple days in the garage lol, never pin pointed it

Ahh, the good old "let it sit and hope it goes away" technique

johnson47376 · 05-30-2017, 10:11 PM

Quote:

Originally Posted by Diox

Quote:

Originally Posted by johnson47376

Cleaned the connections again and made sure all of the settings were at "default" settings, re loaded hex file. Idk if it was moisture on some wires or something, it seemed to just work after letting the car sit for a couple days in the garage lol, never pin pointed it

Ahh, the good old "let it sit and hope it goes away" technique

Lol send a prayer to the man upstairs. But hey, it worked! I'm pretty sure it had something to do with moisture or something. I don't have the "cowl" or the OEM cabin air filter on , I have just the BMS mini filters. Seemed to happen when I'd wash the car without the cowl on and all the water run down into the engine bay and over the DME

hz_diesel · 06-01-2017, 01:32 PM

Quote:

Originally Posted by johnson47376

Lol send a prayer to the man upstairs. But hey, it worked! I'm pretty sure it had something to do with moisture or something. I don't have the "cowl" or the OEM cabin air filter on , I have just the BMS mini filters. Seemed to happen when I'd wash the car without the cowl on and all the water run down into the engine bay and over the DME

Shouldn't be moisture for me but who knows. I replaced my board less than a month ago and replaced my harness less than 6 months ago. I shipped it to BMS to have it looked at.

03-08-2015, 08:15 PM	#1
johnson47376 Second Lieutenant 34 Rep 209 Posts Drives: 2011 335i e92 ///M Join Date: Feb 2012 Location: Roanoke, VA iTrader: (1)	JB4 not working So I've had my JB4 Stg 2 installed for over 2 years and it randomly started getting hiccups and engine malfunction and SES lights the other night and now JB4 seems to be freezing or not working at all when I try using the steering wheel controls. After trying to enter into map selection 5-10 times it eventually works, but I cannot go into any other menu and then it usually freezes the gauges. The car is running like crap and wont stay running. Checked the connections and all seem to be fine. Anyone have this issue. Is my board getting ready to be completely fried? ANY HELP APPRECIATED! __________________ 2011 E92 335i ///M Sport in SGM/ 19" Forgestar CF5V/ Pure Stg2 Turbo/ Pure inlet/ GFB DV /Fuel-it Stg2 LPFP/BMS intake/ JB4 ISO BMS BEF/AR Design DP/ ER CP/Wagner FMIC/ Wavetrac LSD/BMW PE/ KW Street Comfort / MusicarNW Level Two Audio Upgrade/CDV delete/3000K HID Fogs/ N20 plugs/ JB4 BT Rev3
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03-08-2015, 08:26 PM	#2
loesch Captain 134 Rep 917 Posts Drives: 2011 BMW 135i M Sport Join Date: Feb 2012 Location: State College, PA iTrader: (4)	If you're sure the power wire and ground are good then email BMS. If the board is bad they should have no problem replacing it for you.
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03-08-2015, 10:32 PM	#3
Sidewinderpb Banned 329 Rep 1,739 Posts Drives: 2017 340i xDrive 6mt Join Date: Nov 2013 Location: CT iTrader: (7)	Try cleaning your CAN wires with some alcohol and a paper towel. They can get pretty gunked up with the glue from the covers, which will interfere with the connection.
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03-10-2015, 01:05 PM	#5
mike@x-ph.com BimmerPost Supporting Vendor 28431 Rep 198,459 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	BMS stand 100% behind their products. You should have no problem getting this issue fixed keep us updated. __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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05-18-2017, 07:20 AM	#6
hz_diesel Lieutenant Colonel 197 Rep 1,707 Posts Drives: 2012 E92 335ix Join Date: Jun 2015 Location: New England iTrader: (7)	was this solved?
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