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#1
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Dsc/4x4 inop
I have an 06 x5 3.0L. 82000 miles. The other day I was driving and the DSC/4x4 inop Warning came on the screen and the 4x4 warning light came on. The light goes out after restart but comes back on after 35mph. Sometimes the warning comes on the screen as well, sometimes not. Today I noticed if I press the DSC button in park, the light stays on regardless if I press the button again or not. No ABS light. Brought to my indy who scanned it on his BMW computer and it shows nothing wrong. The car seems to be driving fine. No power loss, no weird handling. Need to get in for further diagnostics but have been told from various sources it can be anything from a flat battery to a bad alternator to a bad wheel bearing. Any thoughts before I give up and give to my mechanic to diagnose? Thanks.
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2006 BMW x5 e53, M54, steel grey, black leather, pano roof, cold weather package, avic-z150bh head unit with JL Audio amp and speakers. |
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#2
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Would check for a bad wheel sensor.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#3
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Thought the same but the scanner says nothing wrong...and also, no abs light on. Would need to change all the sensors as we would not know which one is the issue.
Sent from my Moto G (5) Plus using Xoutpost.com mobile app
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2006 BMW x5 e53, M54, steel grey, black leather, pano roof, cold weather package, avic-z150bh head unit with JL Audio amp and speakers. |
#4
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Yes, should light all up ABS also but--. Might want to check connections for corrosion. Could monitor alternator output with multimeter or unlock cluster to look at real time voltage. Could also have the battery load tested at local auto parts store. Lots of weird stuff can happen when a battery is bad. How long has this been going on?
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#5
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Quote:
Sent from my Moto G (5) Plus using Xoutpost.com mobile app
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2006 BMW x5 e53, M54, steel grey, black leather, pano roof, cold weather package, avic-z150bh head unit with JL Audio amp and speakers. |
#6
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Just noticed something. Put car away just now. Turned wheel left and right to end several times, set the light off but not the DSC/4x4 inop Warning on the screen.
Sent from my Moto G (5) Plus using Xoutpost.com mobile app
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2006 BMW x5 e53, M54, steel grey, black leather, pano roof, cold weather package, avic-z150bh head unit with JL Audio amp and speakers. |
#7
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My AT500 had a bad resistor that caused almost all the same issues as it screwed with the CAN and after testing a good one it fixed all those trifecta errors (without ever entering limp mode) not sure what you may have that could cause a similar issue, but the error wasn't showing up until it got really bad.
Sent from my SM-A730F using Tapatalk
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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
#8
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Transfer case gear? I feel like intermittent DSC/4x4 lights until gear wore completely. Very cheap DIY repair.
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Scott 2005 4.8iS TS/BLK |
#9
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It's not the gear it's the classification resistor that was causing the issues, so it might be something similar on his. But that's just a swag.
I should have mentioned that it's part number 3 in the diagram Sent from my SM-A730F using Tapatalk
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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course Last edited by EODguy; 10-01-2018 at 01:43 AM. |
#10
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I was throwing it out to the OP as possible culprit.
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Scott 2005 4.8iS TS/BLK |
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4x4 inop, dsc malfunction |
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