A8L Quattro Sedan V8-4.2L (AKB) (2002)
Control Module: Service and Repair
5 Speed Automatic 01L AWD
Removing And Installing Transmission Control Module (TCM) -J217-
TCM location: in E-box in right side of plenum
Removing
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Switch ignition off.
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Open E-box in right side of plenum by unscrewing 7 bolts (arrows).
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Unclip bolt cover to unscrew bolt in upper right-hand section of illustration.
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Release multi-pin connector lock -2-, then disconnect multi-pin connector from TCM.
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Unscrew bolts (arrows) and remove TCM (together with bracket) from E-box.
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Check container for water penetration and reseal if necessary.
Installing
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Install in reverse order of removal.
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Check DTC memory of TCM.
Disconnecting multi-pin connector from TCM -J217-