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X5 E53 (1999 - 2006)
The X5 SAV Forum

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  #1  
Old 02-03-2014, 06:43 PM
smbpizzaguy smbpizzaguy is offline
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Mein Auto:
Trifecta abs brake dcs

Just picked my 2001 X5 3.0 back from the shop. The driver rear tire had gone flat and I noticed when he pulled it up the abs brake and dcs light were on.i asked the mechanic why they were on being they were not on when I took it to him. He said it was just the sensor picking up a smaller circumference and would go off once the tire was aired up and driven.. Been six days now still on
Note I had the car towed to the shop.
The right rear wheel speed sensor is new.
Alternator is 8 months old
Battery is 8 months old
I've tried to reset the steering angle sensor didn't work
Any thoughts?


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  #2  
Old 02-03-2014, 09:47 PM
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AJR1982 AJR1982 is offline
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It would only take 15 minutes to do a check on your wheel sensors and module. Here's the instructions. If it's the wheel sensor then it's probably bad. I'm thinking if it's the module you might want to wait a while.
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  #3  
Old 02-04-2014, 01:02 PM
smbpizzaguy smbpizzaguy is offline
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I have a meter to measure these
But not a lot of knowledge on measuring ohms there
Where do I ground?


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  #4  
Old 02-04-2014, 01:53 PM
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AJR1982 AJR1982 is offline
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Corresponding with the holes and # above just stick the pins in (If they are too big find a way to make them smaller)
Test = Resistance = Speculated Location
13-14 = 700-1027 = Left Rear
28-12 = 704-1007 = Left Front
30-14 = 697-1033 = Right Rear
36-19 = 683-979 = Right Front

Also make sure your DMM is set to mega ohms. it should say 100k or something like that. Let me know if you have any specific questions as to how to get it to operate. Measure it both ways it seems the x5 doesn't have the diodes the 5 and 3 series do so it wont matter the direction.

Last edited by AJR1982; 02-04-2014 at 01:54 PM.
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  #5  
Old 02-04-2014, 03:34 PM
smbpizzaguy smbpizzaguy is offline
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So I put the pins in 13 and 14 and that'll be the left rear?


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  #6  
Old 02-04-2014, 03:44 PM
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AJR1982 AJR1982 is offline
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Exactly! don't force it though make sure you have small wire.
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  #7  
Old 02-04-2014, 04:10 PM
smbpizzaguy smbpizzaguy is offline
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Mein Auto:
That's on 30 n 14
No matter which one I try all the same
Am I missing something?Click image for larger version

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  #8  
Old 02-04-2014, 04:16 PM
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AJR1982 AJR1982 is offline
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ok then the right rear sensor is probably bad. I would test it at the wheel just to make sure. Here is one on ebay. Congratulations on saving yourself over $800
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  #9  
Old 02-04-2014, 04:26 PM
smbpizzaguy smbpizzaguy is offline
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Speedo and all work though


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  #10  
Old 02-04-2014, 04:27 PM
smbpizzaguy smbpizzaguy is offline
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I guess tomm I'll jack it up and just test all at wheels
Safest bet right
Should the resistance be the same at wheels as the abs connector?


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  #11  
Old 02-04-2014, 04:41 PM
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AJR1982 AJR1982 is offline
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You can test at the wheel without taking the wheel off. The rear wheel sensors disconnect at the box . if it is a broken circuit that's the culprit. I wouldn't bother checking the others if that one is bad. Just test if it's open or not.

*****A SIDE NOTE******* the rear wheel sensors connect in a box behind the wheel and they get a lot of weathering. Be gentle and when you reconnect you might want to put a little bearing grease just to seal and lubricate.
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  #12  
Old 02-04-2014, 06:05 PM
smbpizzaguy smbpizzaguy is offline
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Ok so speedo works
Mpg left in tank good
Cruise control works
Gotta be front sensors right?
Or the abs unit?
What about other sensors in the dcs like the one in the middle console?


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  #13  
Old 02-04-2014, 06:38 PM
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Quote:
Originally Posted by smbpizzaguy View Post
Ok so speedo works
Mpg left in tank good
Cruise control works
Gotta be front sensors right?
Or the abs unit?
What about other sensors in the dcs like the one in the middle console?


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It's a 1:1000000000 chance that that there are more then one thing wrong at the same time. If the Right rear circuit is broken that's your problem. Remove and replace.
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  #14  
Old 02-05-2014, 11:11 AM
smbpizzaguy smbpizzaguy is offline
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Mein Auto:
The weather is too bad here to pull sensors and check today
Perhaps tomm


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  #15  
Old 02-05-2014, 12:03 PM
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AJR1982 AJR1982 is offline
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Quote:
Originally Posted by smbpizzaguy View Post
The weather is too bad here to pull sensors and check today
Perhaps tomm


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-20 with the windchill here. Keep us informed when you get the chance.
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  #16  
Old 02-05-2014, 06:44 PM
smbpizzaguy smbpizzaguy is offline
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Mein Auto:
Is there a consumer grade scanner for bmws that'll pull codes obdII scanners won't and also that will pinpoint failed sensors?


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  #17  
Old 02-05-2014, 07:24 PM
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AJR1982 AJR1982 is offline
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No, It has been discussed that the OBDII scanners will possibly give an incorrect problem. That is why the 15 minute check with the DMM is the best option. I did however just buy an OBDII scanner for our cars and I would highly recommend looking into one next time the check engine light comes on. for $10 how can you resist!
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  #18  
Old 02-06-2014, 01:27 PM
smbpizzaguy smbpizzaguy is offline
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Mein Auto:
Pullin abs wheel speed sensors
Bein speedo and mpg and cruise control works should I start with the front ones?


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  #19  
Old 02-06-2014, 02:11 PM
smbpizzaguy smbpizzaguy is offline
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Driver front came in at 1762-1764


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  #20  
Old 02-06-2014, 02:13 PM
smbpizzaguy smbpizzaguy is offline
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That was on the diode setting


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  #21  
Old 02-06-2014, 02:35 PM
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You can test them all but your Right Rear should be the bad one.
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  #22  
Old 02-06-2014, 02:39 PM
smbpizzaguy smbpizzaguy is offline
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But doesn't that one control cruise control or am I wrong


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  #23  
Old 02-06-2014, 02:50 PM
smbpizzaguy smbpizzaguy is offline
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Ok passenger front reads from 590 to 711
I noticed one thing different
On this one it sparaticly jumps from one number to the next where as the driver front went straight to 1764 and held there
Does this mean anything


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  #24  
Old 02-06-2014, 03:31 PM
smbpizzaguy smbpizzaguy is offline
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Right rear tested at 1300-1337 sparaticly


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  #25  
Old 02-06-2014, 03:46 PM
smbpizzaguy smbpizzaguy is offline
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Mein Auto:
Driver rear tested at a steady 1806-1808
So in conclusion these are the numbers I have
Note these are all on diode function
Driver front:1762-1764 steady
Passenger front:630-711 sparatic
Driver rear:1806-1808 steady *this one is newest I replaced
Passenger rear:1300-1337 sparatic

Any thoughts?



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