HELP! please... ABS, TPM, Traction, startoff assistance errors

ArtVandelay · 05-06-2011, 01:56 PM

Ok, I have the following lights on my e90 335i :

ABS, Brake, and traction as seen in the photo...

And in Idrive the following messages as seen in the photos:

Avoid hard braking
Tire pressure monitoring inactive
Startoff assisance inactive

The lights and errors come on and off while driving, seemingly when I reach a certain speed.

I searched and came up with this being condusive with a wheel speed sensor malfunction.... but the dealership stated that its the passenger rear wheel bearing... they said "its loose"

I have no noise coming from the bearing, and there is no play in the wheel whatsoever when I checked it...

So my question is... what do you guys think?

I have a BT tool, but for some odd reason it says it cant access or communicate with the abs system...

Also, I can understand that one problem may cause the abs and traction control lights etc, but the tire pressure system seems like itd be completely unrelated to the other 2... Is it possible these all have a fuse in common? wishful thinking...

ArtVandelay · 05-07-2011, 12:34 AM

Is this in the right forum fellas?

fdriller9 · 05-07-2011, 09:44 AM

Put your hazards on and then try to access the abs module.

pruettfan · 05-07-2011, 07:00 PM

I had a similar issue with my 06 330I it was a bad rear wheel bearing and ABS wheel speed sensor that made it so the computer could not sense the wheel speed therefore the ABS, traction control and FTM did not work. My car uses the passive tire pressure monitoring system that senses wheel speed to determine tire pressure changes. Anyway it took the dealer three visits and about a week in the shop to figure it out and fix it.

fdriller9 · 05-07-2011, 07:09 PM

Quote:

Originally Posted by ArtVandelay

Also, I can understand that one problem may cause the abs and traction control lights etc, but the tire pressure system seems like itd be completely unrelated to the other 2... Is it possible these all have a fuse in common? wishful thinking...

Models with FTM use the ABS sensor to determine the rotational speed of the tire. Pressure loss will cause a wheel to rotate slower compared to other wheels.

This is how FTM works, why it sucks, and why the US mandated TPMS in vehicles equipped with a tire pressure monitoring system (post March '07 for E9xs).

ArtVandelay · 05-11-2011, 08:56 PM

Ic, thanks

blackbeast06 · 05-11-2011, 08:59 PM

if there is a noise coming from the wheel area i believe that could be a bad bearing, makes sense.

ArtVandelay · 05-11-2011, 09:02 PM

Quote:

Originally Posted by blackbeast06

if there is a noise coming from the wheel area i believe that could be a bad bearing, makes sense.

You must have misread my post bro... There is no noise, and no play...

orangedawg · 05-12-2011, 09:57 AM

See my post in your other thread, but here it is as well:

You can check to see if your speed sensor is bad by putting a multimeter on it. What I did was disconnect the the electrical connector at the ABS computer. It's located under the hood, on the driver's side, and will have the brake lines going into it. Disconnect the eletrical connector. What you want to do is get a reading from each of you wheel speed sensors and see if they read differently from each other.

I post below the pinouts for the e90's at the abs connector (located under the hood as I noted in my above post). Put a multimeter with really thin wire (20 gauge or so) to the pins on the connector to test the sensors. You want to use the diode setting on your multimeter. Again, the below link has tons of diagnsotic stuff, way more than most people will ever do. The basic advice on that forum is after checking wheel speed sensors, if they test good, is to send unit to get it repaired. The only place I found that will do our model (e90 with xi) is module masters in Idaho for $300.

BTW, that forum is very long, over 13 pages of long posts. Super informative, though. I think I started posting my info on page 9, I think.

Pin out:
I've got an 07 e90 328xi and was trying this out. From what I found in Bentley's, it looks like these are the pin outs for my car:

RF 6 and 18
LF 21 and 22
RR 19 and 31
LR 20 and 33

Link to ABS/DSC error forum:
http://www.bimmerfest.com/forums/sho...d.php?t=356272

ArtVandelay · 05-13-2011, 10:14 AM

Quote:

Originally Posted by orangedawg

See my post in your other thread, but here it is as well:

You can check to see if your speed sensor is bad by putting a multimeter on it. What I did was disconnect the the electrical connector at the ABS computer. It's located under the hood, on the driver's side, and will have the brake lines going into it. Disconnect the eletrical connector. What you want to do is get a reading from each of you wheel speed sensors and see if they read differently from each other.

I post below the pinouts for the e90's at the abs connector (located under the hood as I noted in my above post). Put a multimeter with really thin wire (20 gauge or so) to the pins on the connector to test the sensors. You want to use the diode setting on your multimeter. Again, the below link has tons of diagnsotic stuff, way more than most people will ever do. The basic advice on that forum is after checking wheel speed sensors, if they test good, is to send unit to get it repaired. The only place I found that will do our model (e90 with xi) is module masters in Idaho for $300.

BTW, that forum is very long, over 13 pages of long posts. Super informative, though. I think I started posting my info on page 9, I think.

Pin out:
I've got an 07 e90 328xi and was trying this out. From what I found in Bentley's, it looks like these are the pin outs for my car:

RF 6 and 18
LF 21 and 22
RR 19 and 31
LR 20 and 33

Link to ABS/DSC error forum:
http://www.bimmerfest.com/forums/sho...d.php?t=356272

Nice! Thanks a lot bro. Awesome. Hey, that link is dead...

orangedawg · 05-13-2011, 01:05 PM

Hmm, I'll see if I can find the right link. Sorry.

orangedawg · 05-13-2011, 01:20 PM

Okay, here's a working link (at least it works for me):
http://www.bimmerfest.com/forums/sho...d.php?t=356272

See post:
#24 about location of sensors
#30 about the location of the abs (pic is a e39, but ours is same location on the driver side)
#48 has all the info you need to check out ABS/DSC, sensors, how to test, and tons of info
#234 my post about e90 pin-outs.
RF 6 and 18
LF 21 and 22
RR 19 and 31
LR 20 and 33

BTW, I posted my readings using 3 different multimeters and all were different, but each multimeter gave similar results amongst itself. What you are looking for is similar numbers across all 4 sensors. And although each multimeter gave different readings, my sensors are fine and work properly.

05-06-2011, 01:56 PM	#1
ArtVandelay Lieutenant 33 Rep 485 Posts Drives: 335i Join Date: Feb 2010 Location: Ny iTrader: (1)	HELP! please... ABS, TPM, Traction, startoff assistance errors Ok, I have the following lights on my e90 335i : ABS, Brake, and traction as seen in the photo... And in Idrive the following messages as seen in the photos: Avoid hard braking Tire pressure monitoring inactive Startoff assisance inactive The lights and errors come on and off while driving, seemingly when I reach a certain speed. I searched and came up with this being condusive with a wheel speed sensor malfunction.... but the dealership stated that its the passenger rear wheel bearing... they said "its loose" I have no noise coming from the bearing, and there is no play in the wheel whatsoever when I checked it... So my question is... what do you guys think? I have a BT tool, but for some odd reason it says it cant access or communicate with the abs system... Also, I can understand that one problem may cause the abs and traction control lights etc, but the tire pressure system seems like itd be completely unrelated to the other 2... Is it possible these all have a fuse in common? wishful thinking... Last edited by ArtVandelay; 05-06-2011 at 02:04 PM..
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05-11-2011, 08:56 PM	#6
ArtVandelay Lieutenant 33 Rep 485 Posts Drives: 335i Join Date: Feb 2010 Location: Ny iTrader: (1)	Ic, thanks
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05-11-2011, 08:59 PM	#7
blackbeast06 adrenergic stimulation 45 Rep 405 Posts Drives: 2019 M4cs San Marino Blue Join Date: Dec 2009 Location: Columbus iTrader: (4) Garage List 2006 325i [0.00]	if there is a noise coming from the wheel area i believe that could be a bad bearing, makes sense. __________________ 2015 M4 Mineral White/Sakhir Orange 6MT Retired 2007 335i Montego Blue/Saddle Brown 6 MT Retired 2006 325i Black/Black 6MT [IMG]m4 by senntera, on Flickr[/IMG]
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05-12-2011, 09:57 AM	#9
orangedawg Lieutenant 31 Rep 402 Posts Drives: 328xi Join Date: Mar 2010 Location: WA iTrader: (0)	See my post in your other thread, but here it is as well: You can check to see if your speed sensor is bad by putting a multimeter on it. What I did was disconnect the the electrical connector at the ABS computer. It's located under the hood, on the driver's side, and will have the brake lines going into it. Disconnect the eletrical connector. What you want to do is get a reading from each of you wheel speed sensors and see if they read differently from each other. I post below the pinouts for the e90's at the abs connector (located under the hood as I noted in my above post). Put a multimeter with really thin wire (20 gauge or so) to the pins on the connector to test the sensors. You want to use the diode setting on your multimeter. Again, the below link has tons of diagnsotic stuff, way more than most people will ever do. The basic advice on that forum is after checking wheel speed sensors, if they test good, is to send unit to get it repaired. The only place I found that will do our model (e90 with xi) is module masters in Idaho for $300. BTW, that forum is very long, over 13 pages of long posts. Super informative, though. I think I started posting my info on page 9, I think. Pin out: I've got an 07 e90 328xi and was trying this out. From what I found in Bentley's, it looks like these are the pin outs for my car: RF 6 and 18 LF 21 and 22 RR 19 and 31 LR 20 and 33 Link to ABS/DSC error forum: http://www.bimmerfest.com/forums/sho...d.php?t=356272
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05-13-2011, 01:05 PM	#11
orangedawg Lieutenant 31 Rep 402 Posts Drives: 328xi Join Date: Mar 2010 Location: WA iTrader: (0)	Hmm, I'll see if I can find the right link. Sorry.
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05-07-2011, 12:34 AM	#2
ArtVandelay Lieutenant 33 Rep 485 Posts Drives: 335i Join Date: Feb 2010 Location: Ny iTrader: (1)	Is this in the right forum fellas?
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05-07-2011, 09:44 AM	#3
fdriller9 Banned 253 Rep 7,089 Posts Drives: '06 AW 330xi Join Date: Mar 2009 Location: North Jersey/Philly/NYC iTrader: (4) Garage List 2006 330xi [6.44]	Put your hazards on and then try to access the abs module.
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05-07-2011, 07:00 PM	#4
pruettfan Brigadier General 1622 Rep 3,402 Posts Drives: 2017 M2, LBB, DCT, Exec Join Date: Jul 2009 Location: Chandler, AZ iTrader: (0)	I had a similar issue with my 06 330I it was a bad rear wheel bearing and ABS wheel speed sensor that made it so the computer could not sense the wheel speed therefore the ABS, traction control and FTM did not work. My car uses the passive tire pressure monitoring system that senses wheel speed to determine tire pressure changes. Anyway it took the dealer three visits and about a week in the shop to figure it out and fix it.
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05-13-2011, 01:20 PM	#12
orangedawg Lieutenant 31 Rep 402 Posts Drives: 328xi Join Date: Mar 2010 Location: WA iTrader: (0)	Okay, here's a working link (at least it works for me): http://www.bimmerfest.com/forums/sho...d.php?t=356272 See post: #24 about location of sensors #30 about the location of the abs (pic is a e39, but ours is same location on the driver side) #48 has all the info you need to check out ABS/DSC, sensors, how to test, and tons of info #234 my post about e90 pin-outs. RF 6 and 18 LF 21 and 22 RR 19 and 31 LR 20 and 33 BTW, I posted my readings using 3 different multimeters and all were different, but each multimeter gave similar results amongst itself. What you are looking for is similar numbers across all 4 sensors. And although each multimeter gave different readings, my sensors are fine and work properly.
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