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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 08-19-2011, 08:44 PM
jacekz jacekz is offline
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Mein Auto: 2002 745LI
DSC module troubleshooting

For some time, for no reasons, a few times during driving, all four brakes slowly has been getting stuck, to the point, I could not drive for 30-60 min. Almost always, when I started car, a few minutes later I could feel during driving like brake releasing, easier driving. Techs tried to figure out was is wrong, but no specific code was recorded. I told them, I can fill front brakes are not completely released, I can fill vibration in steering wheel and it is eating tires(two sets in 6 months). All steering components, discs, rotors, battery… replaced, but today brakes got stuck for whole day with all those messages: ABS, Parking Brake, Stability Control malfunctions… So I took charge into my hands. I started playing with INPA and when in DSC module, I activated Front Left Exhaust Valve, all four brakes has been released immediately and I could drive. So now, I know, DSC module is causing brake are stuck. My question is: is there any way to diagnose which part is causing that problem? ABS sensor, DSC module itself…? I really do not want to go to service and replace remaining half of the car, because they know sh..t about, what is wrong. Any help with ideas is greatly appreciated.
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  #2  
Old 08-19-2011, 09:03 PM
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Seven11 Seven11 is offline
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DSC module does control the brakes

so that could be it
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Old 08-21-2011, 06:35 AM
jacekz jacekz is offline
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Perhaps somebody knows what means " AD-Value button input S2 pressed" with value-8.7 in Parking Brake module in INPA. Now, I can turn on Parking Brake without pressing brake pedal and that also causing all brakes are getting stuck. They can be released by activating "Exhaust Valve" in DSC Module

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Last edited by jacekz; 08-21-2011 at 06:41 AM.
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