DTC button not working

coleybmw335 · 01-30-2020, 12:07 PM

Hi all,

I went to turn off the traction control the other day but nothing happens, Tried pressing it once & long press(5 seconds) still nothing, No error lights on the dash.

The lights work as when I accelerate & wheel spin the traction control light flickers & cuts power, i've also tried hitting the breaks hard to see if the abs works & it does, I've used INPA to see if wheel speed sensors are working & they are. No error codes. I've even change the button to rule that out.

I'm running out of ideas, I wouldn't mind if a least I had a fault code, But nothing.

anyone had this before?

Thanks

Welcome to NBA Jam · 01-30-2020, 12:27 PM

Check if it's fully plugged in. If that doesn't work, replace the button cluster with a used one and see if that fixes it ( < $20)

coleybmw335 · 01-30-2020, 12:42 PM

Ive changed the button cluster & confirmed its fully plugged in.

activereality · 01-30-2020, 12:44 PM

Quote:

Originally Posted by coleybmw335

Ive changed the button cluster & confirmed its fully plugged in.

Hmm, maybe check for voltage to the button (via the connector) from whatever source. I have never looked at the schematic for that circuit. Could also be the return wire to that source/other destination.

coleybmw335 · 01-30-2020, 01:46 PM

Right, There is voltage to the switch.

Is there anyway coding could cause this as I have coded cas, frm module for auto fold mirrors from key fob & angel eye brightness.

activereality · 01-30-2020, 07:08 PM

Quote:

Originally Posted by coleybmw335

Right, There is voltage to the switch.

Is there anyway coding could cause this as I have coded cas, frm module for auto fold mirrors from key fob & angel eye brightness.

If you have voltage, jump it and see what happens.

coleybmw335 · 02-01-2020, 07:30 AM

Fixed, It ended up being the JBBF module which I coded window wipers to finish cycle after car turns off. Loaded the original file I saved before I coded the car, Now I can turn off my traction control.

Just shows how important it is to do a backup before you code. LOL

activereality · 02-01-2020, 09:06 AM

Quote:

Originally Posted by coleybmw335

Fixed, It ended up being the JBBF module which I coded window wipers to finish cycle after car turns off. Loaded the original file I saved before I coded the car, Now I can turn off my traction control.

Just shows how important it is to do a backup before you code. LOL

amen

01-30-2020, 12:07 PM	#1
coleybmw335 Private 11 Rep 82 Posts Drives: 2009 E92 335I DCT Join Date: Feb 2018 Location: Derby, England iTrader: (0)	DTC button not working Hi all, I went to turn off the traction control the other day but nothing happens, Tried pressing it once & long press(5 seconds) still nothing, No error lights on the dash. The lights work as when I accelerate & wheel spin the traction control light flickers & cuts power, i've also tried hitting the breaks hard to see if the abs works & it does, I've used INPA to see if wheel speed sensors are working & they are. No error codes. I've even change the button to rule that out. I'm running out of ideas, I wouldn't mind if a least I had a fault code, But nothing. anyone had this before? Thanks Last edited by coleybmw335; 01-30-2020 at 12:15 PM..
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01-30-2020, 12:27 PM	#2
Welcome to NBA Jam Is it the shoes!? 3885 Rep 5,112 Posts Drives: (Sold) 2011 E92 335i ZMP 6MT Join Date: Mar 2014 Location: USA iTrader: (1)	Check if it's fully plugged in. If that doesn't work, replace the button cluster with a used one and see if that fixes it ( < $20)
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01-30-2020, 12:42 PM	#3
coleybmw335 Private 11 Rep 82 Posts Drives: 2009 E92 335I DCT Join Date: Feb 2018 Location: Derby, England iTrader: (0)	Ive changed the button cluster & confirmed its fully plugged in.
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01-30-2020, 01:46 PM	#5
coleybmw335 Private 11 Rep 82 Posts Drives: 2009 E92 335I DCT Join Date: Feb 2018 Location: Derby, England iTrader: (0)	Right, There is voltage to the switch. Is there anyway coding could cause this as I have coded cas, frm module for auto fold mirrors from key fob & angel eye brightness.
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02-01-2020, 07:30 AM	#7
coleybmw335 Private 11 Rep 82 Posts Drives: 2009 E92 335I DCT Join Date: Feb 2018 Location: Derby, England iTrader: (0)	Fixed, It ended up being the JBBF module which I coded window wipers to finish cycle after car turns off. Loaded the original file I saved before I coded the car, Now I can turn off my traction control. Just shows how important it is to do a backup before you code. LOL
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