A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Replace Motronic Engine Control Module (ECM) Power Supply Relay (J271).
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Read readiness code => [ Readiness Code, Reading ] See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes. If DTC memory was erased, readiness code must be generated again => [ Readiness Code, Generating ] See: Computers and
Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes.
