A8L Quattro Sedan V8-4.2L (BVJ) (2007)
Control Module: Service and Repair
Transmission Control Module, Replacing
‹› The Transmission Control Module (TCM) (J217) is a component of the Mechatronic unit in the transmission and cannot be serviced individually.
‹› To achieve optimal anti-theft protection for the vehicle, an anti-theft immobilizer was installed. The anti-theft immobilizer is a system for
enabling/locking the Transmission Control Module (TCM) (J217).
‹› To perform adaptation of the anti-theft immobilizer.
Work procedure
Check the identification of the previous Transmission Control Module (TCM) (J217) as follows:
-
Connect the scan tool.
-
Switch the ignition on.
-
Select "Diagnostic mode 9: Vehicle information."
-
Select the"Test-ID 04: Calibration identification".
-
The Transmission Control Module (TCM) (J217) identification will be displayed.
-
End diagnosis and switch the ignition off.
-
Replace the Mechatronic unit in the transmission.
-
Check the identification of the new Transmission Control Module (TCM) (J217) to ensure it matches the old Transmission Control Module
(TCM) (J217).
-
Code the Transmission Control Module (TCM) (J217).
Generate readiness code. Refer to => [ Readiness Code ] See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes.