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  #11  
Old 05-17-2013, 07:28 PM
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Hi, You need to be sure about the issue first before you get the module done. A very easy way to find out is.... Start your vehicle cold (hopefully your yellow dash lights are not on) Remove your headlight and mounting bracket, get your hair dryer out and heat the ABS/DSC module while the X5 is running (use common sense while heating it.... Don't melt stuff!) Have someone in the vehicle watching the dash lights. If they illuminate yellow while you do this, its your module. If your abs/dsc lamps come on at start up, more indepth testing is required...... IE; Amp clamp at the speed sensors to see if there is any current. If the bonding wires have come off in your module with a large gap, heating the module will have no effect. No current at one of your sensors will indicate this. At this point you want to "sensor swap" to make sure you have no current with a known good sensor..... Then it's almost "hands down" the module.
I have found that if your vehicle looses connection with one sensor, usually you only get the warning lamps on the dash (yellow). If it looses connection to 2 sensors, it will put you into transmission fail safe mode.
The front wheel sensors (connectivity) are very much a part of this.
If your vehicle is going into tranny fail safe mode all the time, you should have the problem fixed before the tranny fail safe mode wrecks your tranny. Going highway speeds and having the tranny slam into 3rd is very hard on the planetary gears.

I'm sorry, Im not taking repairs on these modules.... Mind you, the amount of people that have asked, I could start a small buisness.


Good Luck
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  #12  
Old 08-27-2013, 11:57 AM
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Quote:
Originally Posted by pnoyako85 View Post
if alternator goes bad.....and sends a signal to radio (cutting off/on, 4x4, Trans Fail safe + grinding noise feels like coming from front engine and floor board then loss of power feels like) ...then turn off car wait 3mins...resets back to normal......... did battery check 84% already...tmrow i replace Alternator....should cure the mystery.......
Did this solve your problem? I have the exact same problem now. Been trouble shooting it for 2-3 weeks.
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  #13  
Old 08-27-2013, 02:09 PM
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Yes! Get your battery ceck, then if its good. Change your alternator... Problem Solved!!! Let us know what happens after.
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  #14  
Old 11-10-2014, 11:55 PM
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Hi, today i change the solenoids of the valve body, new filter, then i test and trans fail alert comes on, i remember that i forgot to clean the plugs, i take out all the plugs because i take out the valve body and the plugs recive oil. This can be the cause for the trans fail?? Is a x5 2002 3.0l GM Transmision
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  #15  
Old 11-11-2014, 08:06 AM
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???
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