2020/06/29

How to Reset BMW ELV Steering Lock with Autel MaxiSys?

A0AA is a very common fault stored in BMW Car Access System (CAS). The fault can cause an annoying light and bing noise or even non start.  You can carry out a reset using an Autel MaxiSys system (i.e MaxiSys EliteMaxiSys MS908P etc).
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Model example: BMW 630i coupe 2007

MaxiSys reads fault code: A0AA in CAS control unit
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How to erase fault code A0AA?

In MaxiSys Elite scanner, go to Diagnostic Function->BMW->Manual Selection-> 6 series->E63/E64->630i_N52_COUPE->EUR-RHD->model year 2007_03
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Confirm vehicle information
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Select Service function-> Drive->CAS->Reset internal ELV fault counter
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The internal ELV fault counter must be reset and a control unit reset performed after replacing the electronic steering lock.
Continue service function
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Resetting internal ELV fault counter and performing control unit reset.
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The internal ELV fault counter was reset.
Read the fault code memory out of the CAS control unit.
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Service function finished
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Go to Autel MaxiSys Diagnostic function and choose Auto Scan
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Select CAS Car Access System
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Read codes
Then Erase codes
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Codes have been successfully erased.
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No fault codes detected.
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Done.

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