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#1
03-14-2010, 03:47 AM
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Had speedo some of the time, replaced sensor and now nothing at all.
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#2
03-14-2010, 10:29 AM
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By speed sensor I'm guessing you mean right rear wheel speed sensor? If so it wasn't bad if you had no other faults to back it up as the ABS and DSC both use that sensor too. Sounds to me like you most likely have a bad instrumet cluster, which unfortunately needs to be replaced using the proper methods for programming/encoding to swap over all the stored information in it... usually a dealer trip unless you have a dealer level equipped german car specialist indy that knows how to do that job.
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"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is 
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#3
03-14-2010, 11:15 AM
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I had it at the dealer and their diagnosis was left rear and right front speed sensor. I put a new one on the left. I will try switching them today. What does the rear left one control? I'm assuming that left is the driver's side.
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#4
03-14-2010, 11:48 AM
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Well, there is a wheel speed sensor at alll 4 wheels. Each of them affect the ABS for that wheel. Faults for the front sensors are generally the sensor, faults for the rears could be the instrument cluster or the DSC module... If I remember right the right rear could be the cluster and the left rear could be the DSC control module.
The reason the dealer wanted to try the sensors first is that they are a fraction of the price of either control module. They should have read for each signal through the test equipment, then swapped sensors left to right to see if the fault followed. If it didn't they should have done a quick check of the wire from one end to the other with an ohmmeter to ensure good wiring before condemning the appropriate module. I'd only worry about swapping for diagnosis if you have something like the GT1 that can read ABS faults and diagnostic requests. Otherwise bring it back to them to re-diagnose on their dollar since they didn't fix it the first time and you already paid for diagnosis of this fault.
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is
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