A5 Quattro Coupe V6-3.2L (CALA) (2009)
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Replace the engine control module. Refer to the appropriate service information for removal and installation procedures.
If the specified resistance value was obtained:
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Remove the engine control module. Refer to the appropriate service information for removal and installation procedures.
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Check each TCM CAN circuit for a short to ground, short to voltage, open circuit or high resistance.
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Repair as necessary.
If no malfunction is found in the wiring:
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Replace the transmission control module. Refer to the appropriate service information for removal and installation procedures.
Final procedures
After repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] See: Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 01 - 09/Diagnostic Mode 03 - Read DTC Memory.
2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Testing and Inspection/Scan Tool Testing
and Procedures/Diagnostic Mode 01 - 09/Diagnostic Mode 04 - Erase DTC Memory.
3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] See: Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes/Readiness Code.