S4 Quattro Cabriolet V8-4.2L (BHF) (2008)
If the electrical harness connector is OK:
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Check the wiring according to the wiring diagram:
If no malfunctions are found in the wiring:
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Replace the Mechatronic unit in the transmission.
‹› The Transmission Control Module (TCM) (J217) is a component of the Mechatronic unit and cannot be replaced separately.
Final procedures
1. Check the DTC memory. => [ Diagnostic Mode 03 - Read DTC Memory ] See: Computers and Control Systems/Testing and Inspection/Scan Tool
Testing and Procedures/Diagnostic Mode 03 - Read DTC Memory.
2. If necessary, erase DTC memory of the Transmission Control Module (TCM) (J217). => [ Diagnostic Mode 04 - Erase DTC Memory ] See:
Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 04 - Erase DTC Memory.
3. Generate readiness code. => [ Readiness Code ] See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes.